Sas copy previous row. Maxims of Maximally Efficient SAS .

Sas copy previous row 45/29. 2 45 5 50-5= 45 3 30 15 45-15=30 4 20 10 30-10=20 Is it possible to do so in proc report If so then how? Thanks in adv Another method: proc timeseries if you have SAS/ETS. look like this: 1 1 1 2 2 2 2 3 3 3 essentially all I'm trying to do is to 'fill down' the null variables with the one above it. When the processing of the DATA step reaches the next observation, the held value represents information from the previous observation. More details on the PDV. 1. when tosnum = 1, I have 5 different premid (1,2,3,20,21). add premid if missing in current row but existed in previous row for every polid+prodid. Until then, check out our archives: https: The BegAmount will always be the EndAmount1 from the previous row as the Beginning Balance in the current row will always be the Ending Balance from the previous row. The idea is to merge 4003 subjects from 44 groups, replicated 1000 times, with 1000 rows of logistic model parameter estimates from 1000 bootstrapped samples of my original data, for each of the 4003 subjects. Cu Right now the code will correctly update the baseline to the previous value for the next visit, but then goes right back to the original baseline. specifies that the source code of the macro will be copied to the output destination. [Product]) else x. For all rows where status=1 then I would like the status in the previous row to also equal 1. . Sort your data by acct/date if not already, then check each last. I want to create a copy of the first observation so that new datset will contain 11. Register now! Hi everyone, I think I have a quite easy problem I cannot solve due to my lack of knowledge of SAS language. If last observation then merge with the previous row. 1 Like This table is a transaction trail. Now the second image is what I want the dataset to look like. 3 a new version of the same application is created. My code: Re: SAS 9. In my example, on 12/31 there was an amount for $43,011,231 for the TOTAL_NOTE_BALANCE_15YR variable. SAS: Extract previous and next observations. What I want first row should be zero and whenever there are a change of TPMC from subsequent row (it could be after a null cell as well), the count should start. The proper method for conditionally getting lagged values is to always (unconditionally) store the result of the function Since this set statement is conditional on _n_ = 0, it will never be executed (_n_ starts with 1 in the first data step iteration and increments from there). date row. Hello I have a data set with 4 columns. I wrote my code like this: However the output data is missing the AUC for the second row like below. I want to fill this out data using SAS. For all I know, that generates and embedded SQL query. Hot Network Questions Hello , I am trying to calculate a value where I have to pick the value of A of the current rank and divide it with column B value of previous rank i. Duplicates issue. If you have a table which consists of merely two columns my solution will work perfectly. I haven’t found many helpful tips online as most of the do-loop examples are just for calculations, not actually checking to see if the row before the current one has the same value. 0 4. For example, on row no. subject. I have the following data: can_id date_1 field_1 field_2 field_3 1 11/1/2022 char char 1 10/2/2023 far char 2 11/28/2022 teg meg geg 3 12/1/2022 ham hjk sop 3 12/1/2022 ham kli i I am trying to copy the value from the previous column to the present column if there is a missing value, but there is something wrong in the code I wrote. SAS new variable based on new variable's preivous value. I need to create additional lines based on following conditions. In that case you should copy your input to a temporary table first, like. I'm having a table that has many columns (number&names of columns can be changed due to daily processing) I need to "freeze" the first row, and create a new table such that: Row(n) in NewTbl = Row(n) - Row(1) for all columns, except the first 3 columns, which names are co I would like to suggest you a solution. both tables have same rows, column headers and all. Hi, I have >5. I don't want 2/8/2019 observation for 101 and no data for 102 as there is no BC/ABC after FE. I meant to copy one row but I mis-clicked and copied the whole thing. SAS: how to bring values in the next couple of rows to the current row but don't know how far down to look. ) I am wondering if I can modify or delete records based on the value in the previous row. In the following data, I want a flag=1 if Cntr=S and only if the next row is FE followed by BC/ABC. Want_2 is simple the multiplication of Want_1 with MyValue, row by row. data because before leaving the previous DO loop p was incremented once more. Here is my try: Previous; Next This topic is solved and locked. suggest me any one. The above will output two rows if first. Solved: I have a dataset with 10 observations per subject. Solved: Hello, Please help in this. row 10 A more efficient method compares the revenue from all observations in a single DATA step. The values are processed within a row using a variable based array. However, you would still need a numeric Month or a monotonic() to get a sequence of months to get the I need to calculate the last row new_outstanding in sas? by removing the amount outstanding from the previous row. Facility_Type[I+1] = "Hospital" and. Then using the last flag, we either store the existing Year in that retain variable (or attribute the already stored value to a missing Year). Suppose i have a dataset which has 4 columns: Name ID address ID_2 Sam I have 9 columns of data. Solved: Hi, I want to match rows of the data based on a previous ID. My problem is how to sum the previous 5 rows, I'm fairly confident I can proceed from there. Each row is a patient encounter. I want to copy rows in data set depending how many rows subject has in original dataset. For example Id var1 var2 result 1 50 50 . data tbl1; format date ddmmyy10. i want to drop one column and also copy the values of dropped column in another column which is blank. how I can sum previous rows values and current row value to a new column? My current output: index,value 0,1 1,2 2,3 3,4 4,5 My goal output is: index,value,sum 0,1,1 1,2,3 2,3,6 3,4,10 4,5,15 I know that this is easy to do with Excel, but I'm looking solution to do with pandas. For example, polid = 13102100207, prodid = 310. [Product] end as Product from ( -- this Solved: Hello SAS world, I need your help with the following: Have: PatientID Date X 01/22/2012 X 01/30/2012 X 01/31/2012 X 02/02/2012 Want: Community. Is there an easy Sum previous rows - SAS. +-----+-----+ | Date | Product | +-----+-----+ | 7/1/15 | 5 | | 8/1/15 | 7 | | 9/1/15 | NULL | | 10/1/15 | 8 | | 11/1/15 | NULL | +-----+-----+ select x. I have a similar need for a vectorized solution. It means that for x1=1111 : the values 1000,400 will copy down to 11 rows and values 3000,8000 will copy down to 11 rows. ; end; run; So, what I am trying to do is that if mad_command ne 0, then ouput the whole row to resid table AND ALSO OUTPUT the previous row to resid table as well. Thanks It's the lag1() function that is retaining values but be careful!. I have the following data: Now I want to copy Field1, Field2 and Field3 in the second row from the first row since they have same Member_ID, Date1 and Group1. SAS Innovate 2025: Save the Date SAS Innovate 2025 is scheduled for May 6-9 in The Boston Area SAS Users Group is hosting free webinars! Next webinar will be in January 2025. Sum consecutive observations by some variable. Most statistical calculations that can be obtained via duplicate rows can be obtained equally well via the use of weight statements. To this using SAS: The scenario is, when the data/records downloaded are sorted by column "Case No" & "TFC", those rows with TFC = "C" (in this example, which is row 2 to row 4) will copy the observations/information from Column " Acc_No " until " Trx " from the very first Ideally I am looking to populate the P_Current field with the last Current value (i. 39 2 . I would like to change the value 'aa' into the value in the next row and change the value 'cc' into the value in the next row. now I would like to populate the COLOUR value of row (source) where COUNTRY value is populated, to the first row's empty COLOUR field (destination) where COUNTRY field is empty. Num (column vector) = 123,123,134,156,290,348,596,569,569 How do I fill in those rows with missing Company and Profit with the previous values but if it hits a row with non-missing Company and Profit then it stops? i. For example I've a dataset as follow: Name Year Source File Paper John 2000 X -4 John 2000 Y -3 54 Jack 2000 X 6 5 Jack 2000 Y 8 12 John 2001 X -2 John 2 Logic that executes after the output statement doesn't make any difference to the row that's just been output, but until the data step proceeds to the next iteration, everything is still in the PDV, including variables that are being retained across to the next row, so this is an opportunity to update them. So if you want a SQL approach for the same, I can give you SQL code. I accidentally copied a very large table that was the output of my code. 56 1 . \ SAS is not a spreadsheet. AND PLEASE DO NOT POST TEXT AS PICTURES It appears that you are actually comparing to the first value not How to get a value from previous result row of a SELECT statement If we have a table called cardevent and has rows [ID(int) , Value(Money) ] and we have some rows in it, for example ID --Value 1 The first two row contain the same key, but the second row does not contain any other information other than the key (no value for v1,v2, v3 etc. ; input ID date :date9. In fact, lag<n>() is a function that creates a "queue" with n values. [Date], case when x. This method adds rows to a dataset after SAS has read and processed all rows of the dataset in the SET statement. Hope that helps, and thank you for the reply. If the vector data above the first row matches the current row, I want to be able to check this. Column copy to another dataset in sas. I would like to copy this first value for every observation of id in this new variable. The data i have as follows. I have variables P_1, bad and goods in a merged table, from I am calculating as follows: Cumbad is 1 for the first observations, then Cumbad + bad. Always remember the LAG function doesn't retrieve a value from the previous row in the dataset, but from the previous iteration of the LAG function. counter in the first row of table t, cte. I want to ask please what is the way to put the value from the upper rows down (per customerID)? Data tbl1; INPUT CustomerID product $ ID Exp_VAR $ coefficient; card The anchor query generates the first row of the common table expression cte where it sets cte. I'm confident this has something to do with the way Lag() and Retain work with if/then, but I cannot figure out the solution. 15 4 . ( -> i presumed "observation" here means row in my context right?) And the programming code didn't work as the data/records in column 1 - 6 of row 2, 3 & 4 still remai "Conditional lag" immediately rings a very loud alarm bell. I have been trying to do this with the lag function but I can't figure out how to utilize the lag when I have to continue to use the 'anchor' row to evaluate several rows. The Join us for SAS Innovate 2025, our biggest and most exciting global event of the year, in Orlando, FL, from May 6-9. The lag() function will remember the value from the previous time it was executed, not the previous row!Because your lag function only gets executed when the first if condition is not true, then there may be hard to debug problems arising from this. – user667489. I would like to select 5 rows before and 5 row after a particular observation in a data this will not work correctly. I am trying to fill these missing values from the cells above provided that the two rows belong to the same group. Previous; Next This topic is solved and locked. Have: "Conditional lag" immediately rings a very loud alarm bell. the Nth step should be that copy first row to Nth rows of raw table, then the whole number of rows should be (1+N)*(N/2), the first row of raw table is copied in N times and second one should be (N-1) times; How to get value of previous row , for eg, in first row value of C column is 95 , it should get added to 2nd row of A column , then i want to substract A-B column value will be 89, then 89 should added to 3rd row A column and so on till LAN column value is same , for new LAN A-B = C, C value gets added in next row column A,. 1 2013 . rows 3 to 8 should be Company='Microsoft' and Profit=1000. and make the value of number equal to that previous non-missing value. But the set statement also has a declarative character, as the data step compiler reads the dataset's metadata and uses it to set up the PDV (program data vector). Row with rec_no = 3 and rec-no = 4 should stay as they are. class; output; call missing(sex, weight,height); do copy=1 to 3; output; end; run Registration is now open for SAS Innovate 2025, our biggest and most exciting Again this is only 17 days so I will exclude Row 3 and look at Row 4. 09 How would you create a new column, var2 = (var1 n)/(var1 n-1), and have var2 1 equal to var1 1?The desired output would look like this: hey! the 2nd code worked! I was wondering if I could modify this to have the first populated row of mark1 i. I need to check the previous day balance and if the previous days balance(4thjune2021) is also a negative value then again i need to check the before previous day balance(3thjune2021) till the positive balance value is reflected . Find more tutorials on the SAS Users YouTube channel. Therefore, How to create a string with values of previous row SAS. Note: A LAGn function stores a value in a queue and returns a value stored previously in that queue. For example customer A started his current trip on 01JAN2015 and next trip on 15JAN2015. I want to calculate all "missing" values in the MONEY-column based on the previous month's MONEY and SPEND for each ID (student). I want to copy the column values of a row to another row based on some condition using the SAS data step or Proc SQL. Task2: For each customer need to fill data of empty rows (except of date) with data from previous non-missing row. For example the original data I have is: Name Sex Income Amy F 12635 Bob M 13729 Kim F 16438,18973 Zoe F 15307 I want to duplicate the row of data when there is a comma “, Hello I am performing vertical merging (UNION) of 3 data sets. Technically, you can't compare one row to the one before in the "Advanced Expression" builder, because it uses SQL, and SQL conceptually doesn't recognize the concept of sequentially comparing rows. SAS Training: I'm working in SAS and I have a table that looks like this ID | Time | Main Once i have grouped the records, i "copy" down the values using max() Comparing values on previous row to perform calculations on the current row, SQL. date row is not also last. 3 . and so on. This was just for copy paste convenience. say, in Dataset 1, I hope each ID count adds up to 5 and copy ID in the next row Dataset1: Bring previous observation's value down to the current observation (lag), resetting at the BY group. Note: A LAGn function stores a value in a queue and returns a value stored previously The COPY procedure copies one or more tables from one SAS library to another. So output format will be the same. How could I fix it? 0 SAS Innovate 2025: Register Now. Example: data have; attrib date format=ddmmyy10. Somebody has previous mentioned either LAG() or RETAIN, but I am not sure how to use those Please post example data in a data step, so it can easily be created by copy/paste and submit. 10%* What is the best way of doing this in SAS so it doesnt have to be done in Excel? Thanks! 0 Likes 1 ACCEPTED SOLUTION Accepted Solutions novinosrin. XXX DATASET [current] FRUIT | COUNTRY | COLOUR Banana | . The _N_ can be the pointer to the The next row onwards uses the previous rows calc so 12. difference to the first row of t. value from the previous row). (Don't mind about values of x1--x3, they are just here for illustration. copy observation of one variable down from first until last of another variable. I want to add 1 to flag if current flag doesn't match with previous row value along with one major condition (explained after output for a better explanation). Find more tutorials on the SAS Users YouTube channel . Community. The output should be: YearMonth Flag Stage 200101 1 1 200102 1 1 200103 0 2 200104 1 3 200105 1 3 200106 0 4 200107 1 3 200108 0 4 Hi Chris . Retain the Maternity variable instead, much easier: data want; set have; by MemberID AdmitID notsorted; format We will then take the Amount a/b value of the row of the previous day, where ID1 and ID2 are the same as the one of the row where the criteria is met. Make sure that you have to inserted TAB characters into the text. Use any available rows if 5 do not exist above the data. Each patient has a unique ID (patientID). Most likely a copy and paste issue. How to sum a variable and record the total in the last row using SAS. When flag_1 and flag_2 are equal to 1 the ID received the delivery okay, finish date is equal "-" and MONTHS_TO_RECEIVE equal 0 When flag_1 = 1 and flag_2 = 2 the Learn how use the CAT functions in SAS to join values from multiple variables into a single value. Registration is now open for SAS Innovate 2025, our biggest and most exciting global event of the year! Join us in How do I fill in those rows with missing Company and Profit with the previous values but if it hits a row with non-missing Company data have ; set sashelp. Any comment or suggestion will be greatly appreciated. 000 rows and 130 columns. Stop sas macro from overwriting different imported csv files as the same sas dataset. What are you really wanting to do? A data structure like: I have a question regarding copy rows multiple times in SET statement. The calculation has to be done in proc sql. e. Sum previous rows - SAS. i. The recursive query joins each row of common table expression cte to the previous row of table t. I saw previous topics about Lag function and tried different approaches to solve the problem, but nothing gone well and I don't get the correct result. when tosnum = 2, I have 4 different premid (1,2,20,21). When you call lag<n>(x) , it pushes the current value of x into that queue and reads a previous value from it (of course the pushing only occurs once per row). This is a good question. proc timeseries data=have out=have2; by id; var var / Sample 24694: Obtaining the previous value of a variable within a BY group Bring previous observation's value down to the current observation (lag), resetting at the BY group. Hi everyone I have a dataset with a column containing missing values. I have the following data and would like to add a flag to each row if a condition is met in the previous row. Facility_Type = "Nursing Home" and. The logic I need to use is something like the following : I = 1. Teams; Advertising; Talent; Company. I was able to copy rows 18 to 26 and paste them from row 27. Copy value for certain rows grouped by person Posted 02-07-2022 02:40 PM (830 views) | In reply to Join us for SAS Innovate 2025, our biggest and most exciting global event of the year, in Orlando, Copying the previous column value in SAS. Hello! I need some help to retrieve values in the "next" lines of a report to create some metrics, look, i have the FLAG_1 and FLAG_2. acct, then it is a set of rows where the respondent needs to be output. proc timeseries data=have out=want(drop=time); by id; var var / setmissing=maximum; run; But if it absolutely has to be the next value, you can run through proc timeseries twice: once to get the next value in-line and another to get the rest. Indeed is the Calculation of Want_1, which is a consecutive multiplaction of current row of Result_1 with previous row value outcome of Want_1. Rank A B C 1 148 13610 2 164 14829 164/13 Index always starts with the value of "1" and then take the value of (previous month's index value)*(1+monthly growth rate) after the first month. I had a input like below . I want to take table Y and copy all the data into table X. 0 Basically, when on row 2, if the daysupp_new variable is populated on the next record (row 3), update daysupp on row 2 with the value in daysupp_new on row three. informat=ddmmyy10. previous to 0, and cte. id x1 x2 x3 count 1 a b c 1 1 b c f 2 2 g h a 1 2 a d c 2 2 f g a 3 3 a g a 1 I have created this count variable to detect number of rows each subject has. In each row, the patient has a list of diagnoses flags, eg diabetes can equal 0 or 1 depending on if that diagnosis is pre What we did was to declare a retain variable, that is, one that keeps its value from one row to the next. Repeat the value for duplicate records in SAS. I'd generally recommend using OUT to create an output dataset during development. 1. In the resulted data set there are 2 columns with some null values. So here ID1 and ID2 are equal to a1 and b1 respectively, we look for a1 and b1 the previous day (10/03/2021) and get the amount 28. And I would like to extract observations with "Y" and also the previous and next one: ID sp ddmmyy:10:31:00 N ddmmyy:10:32:00 Y ddmmyy:10:33:00 N I tired to use "lag" and successfully extract the observations with "Y" and the next one, but still have no idea about how to extract the previous one. data Ex001; input Name $ Designee $ 20-32 Department $; datalines; Madhu Jr_Associate QA Sathwik Jr_Associate PB Assume that you have a table with user name, counter and score for each counter. Therefore, if you want a value from the previous row, don't make its execution conditional. A, . Actually, above data is just a subset of a larger one. SAS Training: Just a Click Away find maximum value from previous rows Posted 04-25-2023 12:06 PM (870 views) Thank you for any help for my Join us for SAS Innovate 2025, our biggest and most exciting global event of the year, in Orlando, FL, from May 6-9. Product for each type - C needs to be changed as type Copying the previous column value in SAS. Hi all, I have what I think is a relatively easy quesiton but I can't figure it out. 2. [Product] is null then min(c. SAS Viya; SAS Viya on Microsoft Azure; SAS Viya Release Updates; Moving to SAS Viya; SAS Visual Analytics; SAS Visual Analytics HT, WT, and BI are filled in for patient and visit by variable. Now it is frozen. Make all values after a certain value the same. I would like to perform 2 tasks: Task1: Add rows for dates that are not existing. Stack Overflow. I need to copy the values of fields : X3 ,X4 down. Example below: Below is the code: public static void proc sql; insert into a (select * from b where /* add condition that selects the two rows */) ; quit; For more detailed help, supply example data for both datasets in usable form (data steps with datalines). 0. With the code you suggested, the P_Current is populated with all RETAIN is the correct way I'd say: SET test; retain _variable; if not missing(variable) then _variable=variable; else variable=_variable; drop _variable; Lag doesn't actually go to the how to put %do syntax so that it will fill same value till it finds next one. How do I delete row no 3 and 4? Row 3 and 4 is copy of Row 1 and 2 respectively. Questions; Help; Chat; Products. After spending many hours on the problem of copy and paste several rows, I finally found a solution. For example, the following statements copy all the SAS files in Copies specified items from a SAS macro library. On 1/1 there was a missing variable for that fi How to retain a value from the previous row to do calculations on current row? Posted 06-22-2018 06:57 PM (15486 views) Hi, I have data: month state ts mt Learn how use the CAT functions in SAS to join values from multiple variables into a single value. The system, on new version, will copy over the previous trail. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. premid = 3 is missing. How to retain a value from the previous row to do calculations on current row? Posted 06-26-2017 05:46 PM (10268 views) Hello SAS world, I need your help with the R- Subtract values of all rows in a group from previous row in different group and filter out rows 3 How to subtract values from prior row of another column from current row with an initial start value and by grouping another column? I have a data set with multiple rows per customer Id and each row related to specific date. How can I do this with a sho Hello, i have a data set which i created in a work library. Commented Apr 29, 2012 at 21:25. Hi there, I have a large healthcare dataset. Here is my data: Original Balance Loan Count Curr Balance Contrib IO Balance Contrib% WAC WAM (25,000 - 50,000] 1 116,294 7,412 0. What I would like is to find the first previous occurrence where number is not equal to . I'm currently stuck with this issue as below example, as in how to massage/amend the observations extracted from the syst The logic is that if the disdiff is less than length, the date1 would be the previous disdate or lag_disdate but date2 would be the current dis_date minus one. data have; input user $ counter score; cards; A 1 50 A 3 30 A 6 90 B 1 20 B 4 20 ; run; Some scores are missing b In order to do this I need to use the data from the previous row. how do i do that? here is an example. We define the values of the new row and use the OUTPUT statement to send these values to the new dataset. earlier, I dropped your group variable from have. Many thanks in advance! You don't need to use LAG. The output should look like: Dear SAS experts . Column 1: Postal codes (inkl. I am trying to figure out how to retain an amount from a previous observation when there is no amount available for the current observation. counter to column t. The base table called X has 5798 rows with 9 columns and the table I want to copy to this base table is table Y and has 94 rows with 9 columns. to calculate value of Rank 2 (Column C) = 164/13610. (missed that when I copied your code). I want to copy the column values of a row to another row based on some condition using SAS data step or Proc SQL. We use the end keyword to check if SAS has processed the last row and, if so, add the new row(s). Let me add a little to your background knowledge. So far it looks like you just want to expand populated Update Blank Rows with Value of Previous ROW Posted 12-22-2016 08:07 AM (3942 views) How can I update This Table: Loan_Number: DATE: LCK_TYPE: LCK_TYPE_CALC: 100: 1/5/2016 : NEW: 100: SAS Innovate 2025: Register Today! Join us for SAS Innovate 2025, our biggest and most exciting global event of the year, in Orlando, FL, If you have an existing dataset with bunch of missing values for Parent_Closure, and you want to resolve all of them in one fell swoop, you can do something like this. I have a SAS-dataset with an overall structure similar to the one below. | . Hi: Regarding: merge them with a set statement The SET statement allows you to bring datasets together VERTICALLY, either: 1) stack datasets (dataset 1 has 3 obs, dataset 2 has 3 obs) the final dataset will have 6 obs, The first dataset listed on the SET statement will contribute the first group of observations; the dataset listed second on the SET statement will I work with SAS EG 7. That way you can see the values created within the Proc Report step - sometimes its difficult to understand what is actually happenning in the procedure and having access to this information is useful during development. How do i do a row wise sum in SAS. If column 1 is empty, I want to move the next column to column 1. About; Press; Work Here; Legal; Hi! I have a dataset as follows: PatientID Year DiagA DiagB DiagC 1 2010 . The name implies that when you call it SAS looks back at the previous row and grabs the value, but this is not at all the case. Is there any way to cancel the copying process? I have seen SAS closing itself after being frozen for a while. However, if there are two values in a row where number = . Here is the dataset: data a; input N Group Var; datalines; 1 The LAG function is used to access data from a previous row SELECT DATE_IN, incoming_vol as incoming, LAG(incoming_vol, 1, incoming_vol) OVER (ORDER BY date_in) - incoming_vol AS incoming_diff FROM orders order by 1 desc I am wondering if there is a way to duplicate the row of data when condition met, and change the value of a specific variable. ) is treated by SAS as a less than all non-missing numeric values, whether positive or negative. 46 that we use to replace the false amount 454848. 1 . You should not use LAG for this. Sign up by March 14 for just $795. If If you use LAG() in the if condition, then value is queued(hold value in memory) when the if condition is satisfied. Without this short line, the order of variables in the I'm used to coding in MatLab, SAS is still new to me when using Do Loops. ) Because the first row has "cardio" for V3, this row would need to be duplicated to the second row that does not contain the information. An example of my data is: I am using EG 6. I have two tables and one of them I want to copy all the data into the base table. You can use a temporary array to hold the non-missing values found in a row, and apply those non-missing values in future rows that have a missing values. I would like to copy over the values of each patient and visit into the other variables. OPTIONS sqlundopolicy=optional; PROC SQL; Niotice, that in this column I have to take value from previous row. Row 4 is 30 days away so I keep it and then use Row 4 to evaluate Row 5. Copy a value through column if identifiers are the same. . Solved: HOW TO CALCULATE THE DIFFERENCE WITH IN THE COLUMNS LIKE "GAP DIFFERENCE" = (2ND ROW VALUE -1 ST ROW VALUE) FOR n NUMBER OF. data X; How to create a string with values of previous row SAS. Create new variable based on column value in current row as well as previous row? 3. 1 2014 1 . In fact it is less than other missing values, such as . Basically I am trying to cull a data set to only include specific rows and that involves taking the row above if the criteria is met. The LAG() functions build a FIFO queue where a new element is added ONLY when the function is actually called, not when a data step iteration is executed or an observation is read or written. I'm recommending the "hop" macro from @LeonidBatkhan which performs a read ahead (the equivalent of a LEAD() function if there were one in SAS). I'm trying to make the following data table: 1 . Is there a way I could replace a row value to its previous row by each group? Below is the before and after data set. For example, I have data looks like below. "Premium" and "ExpenceLoad" are named ranges in excel. I would like to create a variable which includes only the first (lowest) value of another variable for each id in my dataset. 28 3 . The missing value (. The current SAS code in my program (Within Data step) is: Hi, welcome to the SAS world! I'm glad you got the results you want. 2 SQL: How to copy values from one row to another by matching IDs Posted 09-14-2015 03:21 PM (6882 views) | In reply to Jolly If you have an existing dataset with bunch of missing values for Parent_Closure, and you want to resolve all of them in one fell swoop, you can do something like this. Hence these last three rows should be combined into one. Here I only output one row per date/acct combination: If this is the case I want to output the previous years data, which is just the row above after it has been sorted. If, for an observation of a given patient, I have missing values for all cells in DiagA-DiagC, I want SAS to insert the values from the previous observation (of the same patient) Q) If Regionnumber is same for two ids, then need to copy populated ID row column values to not populated ID column values? If there is only unique Regionnumber or Regionnumber value is 0 ignore those rows. has it's previous value of number = . i used LAG function while capturing the What I will like to do is to replace the missing quantity with the immediate previous quantity if the previous drug is the same in that patient. Home; Welcome. when the first if condition is true then the lag value will It literally takes the dataset and merges itself to a copy of the dataset that starts on row 2, side-to-side. Try this: data want; set have; by childid; prevdate=lag(date); if first. SQL Server SAS Data Science; Mathematical Optimization, Discrete-Event Simulation, and OR; SAS/IML Software and Matrix Computations; SAS Forecasting and Econometrics; Streaming Analytics; Research and Science from SAS; SAS Viya. B, Dear all, First of all, happy new year everyone. Create new variable based on column value in current row as well as previous row? 1. The last 3 records show that the stay at "64^6418" lasted until 3/9/2009 3:16 pm. About; Press; Work Here; Legal; I had observations that each and every observations will repeat 5 times in simple program. 2 1 N 2 2 a ; Hi, I am trying to create a waterfall in which I need subtract a value of a var1 in previous row from value of var2 of the current row. Is the cumulative values of bad. If the loan count is 1 then merge to the next row. For example, the following statements copy all the SAS files in the SOURCE data library into the DEST data library: proc Hi Kurt, I'm getting warning message from SAS: WARNING: The MASTER data set contains more than one observation for a BY group. Hello, I'm newbie with sas. Duplicate row according to a variable Posted 04-25-2017 09:20 AM (3963 views) | In reply to Join us for SAS Innovate 2025, our biggest and most exciting global event of the year, in Orlando, FL, from May 6-9. childid then prevdate = . Copy first row value for all rows Posted 03-30-2020 05:42 AM (4479 views) | In reply to Register Today! Join us for SAS Innovate 2025, our biggest and most exciting global event of the year, in Orlando, FL, from May 6-9. Wouldn't this allow some efficiency gains compared to a for loop? I have a sample data set and output format data sample ; input emp $ 1-4 sal 5-12 date 13-20; datalines; 1111 5000 31OCT2013 1112 3200 31OCT2013 1113 4200 31OCT2013 1114 5100 31OCT2013 1115 7200 31OCT2013 1116 6000 31OCT2013 1111 5000 30NOV2013 1112 3200 30NOV2013 1113 4200 30NOV2013 1114 5100 30NO I would like to loop through this dataset and update the Flag column with a 1 depending on information in the next row. Consider this All Rows'; run; [/pre if what you want to do is ALWAYS compare a value on this record with the value on the previous record (without regard to by group processing), then you Hello, I am having a bit of trouble with replicating every row in my dataset n times. Copying the previous column value in SAS. I wan to form a group that matches. I'm a new user in using SAS program, and currently my company is using SAS Enterprise Guide for company's management reports. It would be nice if pandas provided version of apply() where the user's function is able to access one or more values from the previous row as part of its calculation or at least return a value that is then passed 'to itself' on the next iteration. I suggest changing to use a retain statement which are Previous; Next This topic is solved and locked. SAS can retain a value from the current observation to use in future observations. If the first last. 2 . duplicates) Column 2-129 with €-values (names of columns: sp1-sp129) What I need is a new row with the result of the sum of all rows for each numeric column (sp1-sp129), if the postal code is XXXXX. Each encounter has a unique encounter number (visitID). name of the macro that the %COPY statement will use. My goal is to check the row above/before the current row to see if the current and previous row numbers match. Greatly appreciate your help in resolving this. So the ideal outcome would look like this: This is the sample code data a_k resid; set akkk; if mad_command ne 0 then do; output resid and . Example: Record 1: col1 col2 col3 blank beans rice Record 2: col1 col2 col3 beets blank lettuce Desired result: Record 1 has col1 and col2 populated with beans and rice Record 2 The "full story" of your data is not clear - if it's possible that Placement_tactic can be missing and AddType ^= Default at the same time, if it's possible that there's no populated Placement_tactic for a certain Placement_type, if there can be other AddTypes with missing Placement_tactic etc etc. SAS Cumulative sum in a do until loop. Cumgood is the same as cumbad. The X data set in the other post is the same source table you are filtering, so the logical order of the code is: Check every row in the table 'Have', _N_ holds the current row number, If Type = 1 then Set Have Point=_N_ goes to row _N_ in the 'Have' table and outputs that row to the new table 'want', then continues to the next row. As an example: data reading; input ID Name $ Score; cards; 1 David 45 1 David 74 2 Sam 53 2 Ram 54 3 Bane 87 3 Hi. then the second occurrence of the value of . Suppose if todays date is june5th2021 and the amount is -500 . It will attempt to update your entire dataset for which Parent_Closure is missing. The proper method for conditionally getting lagg The first two rows show that this patient stayed at "SICU^6108" until 1/13/2019 5:26 pm. if the mark1 column has missing values, I'd like to include the first row where mark1 is not missing in mark1first and also include a count variable that has the number of rows where mark1 is not missing I want to compare the data with previous row Posted 02-08-2023 11:38 AM (1723 views) Hi , Thanks in advance i need help in the following query. However this is compared from each row to the next row. Can this be done by writing if Copying data down a column in SAS Posted 05-08 -2019 10:57 PM (3572 views) *Only output the last row of each Patient and Update information from previous row Posted 02-28-2021 02:17 PM (976 views) I have a dataset with many Registration is now open for SAS Innovate 2025, our biggest and most exciting global event of the year! Join us in Orlando, FL, May 6-9. I’m pretty new with do loops in SAS and I know that I am trying to make this loop work like a MATLAB script. And Row1 & 2 is copied as Row3 & 4 and trail started over. SAS: Do loop summing rows from 1 to value specified by a column. Thanks in advance. I really don't want to lose my unsaved work. What can I do if I want to copy the data from the next row. 1 and am trying to carryover data from one row to the next row but don't know how in SAS. Generally, the COPY procedure functions the same as the COPY statement in the DATASETS To copy an entire SAS library, simply specify an input data library and an output data library following the COPY statement. counter. Something like this would work. data have; input MemberID $ AdmitID $ ; cards; AAA 001 AAA 001 AAA 001 AAA 002 AAA 002 AAA 002 ; data want; set have ; by memberid admitid; length Maternity $8 ; To copy an entire SAS library, simply specify an input data library and an output data library following the COPY statement. Registration is now open for SAS Innovate 2025, our biggest and most exciting global event of the year Hi, I'm having a headache computing new variables based on the observation above. For an ID, If RSN_CD_1 = XA and RSN_AMT_1 is not NULL , insert a row with line = 1001, SVC_DT as ma I have a data which looks like this and i want to copy the last obesrvation of height to all the previous rows of a given subject Sub Date Age Rank 1 xxx 23 1 xxy 20 1 xyy 13 1 xyx 16 1 2 xyx 12 2 xyy 14 2 xzz 15 2 I would like to copy the rank value of a given subject to all the previous dates (r Similarly that first row contains empty COLOUR field while second row contains actual COLOUR value. SAS: duplicate rows and change some variables. Maxims of Maximally Efficient SAS Sum previous rows - SAS. do while I <= "num rows in dataset" If Patient_ID[I+1] = Patient_ID and . Use BY group processing and RETAIN instead. I'm looking to conditionally change the value of a variable in the previous row, based on the value of the current row. For example, data test; input id seq var $ @@; datalines; 1 1 Y 1 2 . For example, Index_A starts with 1 and then 1. 25 I want to repeat the entore row in a SAS data set based on the following condition : If the 'duration' of the fund is lesser then equal to 4 and type of 'base_fund' is Platinum or blank value ( which implies platinum), I need to generate additional 4 rows same as platinum row values, but changing the "base_fund' to these 4 funds 'Add_Silver', 'Silver'. 2 after 20% growth. 1 2011 . I have the following table For a given id, the RSN codes and RSN amounts remain constant across all the lines (line). Hello, i want to ask how can i sum each previous rows by variable SPCislo, here is sample of data: PK DatumPodpisu SPcislo cislo 501377324233203 23Sep2019 0:00:00,000 5100543 10 501377324233208 23Sep2019 0:00:00,000 5100543 10 501377324233213 23Sep2019 0:00:00,000 5100543 10 501377324274981 23Sep2 Hi @VimalManavalan Oh well, I haven't used much of the point-n-click SAS EG lately and you are likely to know more about it. Re: How to transfer multiple rows to single row per id_record? Posted 09-15-2024 11:16 PM (1249 views) | In reply to Tom You proposed a great way, using proc transpose twice, and you also proposed there would be another way, which is using the first design in my first comment and going for proc npar1way, but the latter is not possible. In real life I have a data set with millions of rows and this action should be done . 47 317 (50,00 Hello. data want; set have; by perm_id if _n_=1 then remainder=total; remainder + -num ; run; see below However, in theory, let's look at how BY GROUP processing works within a SAS data step program (and put aside SQL query syntax right now). So these two rows should be combined into one. Given the data set: Year var1 0 . I have done something along the lines of. ugn widsrhjx ogr vqpoq qpdj zssn zmf opaxf lwvzb esqt