Removing the first observation of duplicates. Posted 10-12-2018 03:50 PM (6966 views) Hi SAS experts, My dataset contains duplicate observations and the second observation of the duplicate contains information I need for some variables. I have sorted the data by 2 variables: record_id and event_name, and by using proc sort with nodupkey SAS ...Re: First and last day of month using Macros in proc sql. Hi, INTNX wants a SAS Date, and 201405 is not a SAS date (at least it's not the SAS date you want). You can use INPUT () to convert 201405 to a SAS date, something like: (untested) %put %sysfunc(inputn(201405,yymmn6.),mmddyy10.); %put %sysfunc(intnx (month,%sysfunc(inputn(201405,yymmn6 ...Join us for SAS Innovate April 16-19 at the Aria in Las Vegas. Bring the team and save big with our group pricing for a limited time only. Pre-conference courses and tutorials are filling up fast and are always a sellout.Re: Extracting words from a string after a specific character. Posted 02-06-2019 03:26 PM (71856 views) | In reply to kmardinian. Use INDEX () to find the first tilda and then use that number in SUBSTR (). Double check the order of t. cm = substr (comment, index (comment, '~') +1); View solution in original post. 0 Likes.With SAS OnDemand for Academics, you get the same world-class analytics software used by more than 82,000 business, government and university sites around the world - including 100% of Fortune 500 companies in commercial and retail banking, health insurance, pharmaceuticals, aerospace manufacturing, e-commerce and computer services. ...Jun 16, 2020 ... ... first, last and between By-group processing ... SUBSCRIBE TO THE SAS USERS YOUTUBE CHANNEL #SASUsers #LearnSAS ... CONNECT WITH SAS SAS ▻ https:// ...I am using a first. last. statement to keep IDs and create an observation counter to ensure that I am keeping only those with greater than 3 observations. When I do this, the last observation is kept, and when I try to merge this back into the data set, the first observation is overwritten by the last observation being pulled from the first. last.When reading with a wild card the files are treated as one stream. There is an option EOV to detect the start of a new file. You could test that variable and use programming logic to skip the first line of the file. You CAN use FIRSTOBS when reading the files with the FILEVAR option.The best thing you did is accurately count the number of elements in your array. I'm going to sketch out valid code for what I think you are trying to do here. data test33; set perso.test; by epci; array sexage {101} sexage000 - sexage100; array sex {101} SEXE1_AGED100000-SEXE1_AGED100100; if first.epci then do i=1 to 101; sexage{i} = 0; end ...I need to find out customers with different names and same address. I tried this code, but got note as follows. data rawdata2; set rawdata1; /* (my .csv which has name, address and zip)*/. if first.name and last.Address and last.zip_code; run; NOTE: Variable 'first.name'n is uninitialized. NOTE: Variable 'last.Address'n is uninitialized.6. I have recently migrated to Python as my primary tool for analysis and I am looking to be able to replicate the first. & last. functionality found in SAS. The SAS code would be as follows; data data.out; set data.in; if first.ID then flag = 1; if last.ID then flag = 1; run; The output would be as follows;Given any date and an interval, in your case the month interval, IntNX can return the first, last and and whole range of dates. The SAS code below is a straightforward example of calculating the 1st of the month for a given date: ThisDate=Date(); FirstDayOfMonth=IntNX("Month", ThisDate, 0); Put ThisDate=E8601DA.When it comes to finding comfortable and stylish shoes, SAS shoes are a go-to brand for many shoppers. Known for their exceptional quality and attention to detail, SAS shoes offer ...SQL does not have any concept of first and last, nor in fact of observation order. You must logically find a certain row. So for instance if in a datastep you had first and last of dates within ID, and they were sorted sequentially and they were unique, the "first" row would logically be identified by date=min (date) group by id. The "last ...In SAS you can easily extract characters from a string using SUBSTR() or SUBSTRN() functions.But it only works with the character variable. To extract last 4 digits or any number of digits from a numeric variable, you need to convert the input from numeric variable to character variable in order to use substr function.. You have to do this conversion but it is very straight forward.I have data set like below... data stansys; infile datalines; input id name&$24. sal; datalines; 101 Richard Rose 5000 102 Yao Chen Hoo 6000 103 Asha Garg Bette Long 7000 104 Jason Blue 9000 105 Susan Robert Stewart 8000 ; run; Through this dataset i want output dataset with seperating as First name and Middle name and last name...Then you use by-processing and the first. and last. automatic variables, and retained variables for counters and sums. At the end of each by group, calculate the average and output. Do google searches for. sas proc sort. sas by statement. sas first. last. sas retain statement. sas output statement. sas keep statement. sas keep dataset optionExample 3: How To Use LAST. Variable In SAS. The LAST. function assigns value 1 to the last observation and 0 for the rest of the observations within the group.. You can use the Last. to extract the last observation and either store it in the separate dataset or update the existing dataset.. The following example creates a new sas dataset …Generate an .rtf file using the TAGSETS.RTF statement and place titles on the first page and footnotes on the last page using ODS TEXT= statements. Format the text strings to mimic the look of titles and footnotes.SAS forward observers also directed British artillery and aircraft. Operation Paraquet, 25 ... who had been attached to A Squadron from the SBS, was the first UKSF combat fatality in the Iraq War. The Operation turned up actual proof of an internationalist jihadist movement. ... This page was last edited on 30 March 2024, at 15:06 ...While you may have obscure problems with names like Vincent Van Gogh, your basic idea for first and last name are correct. You can check whether there are 3 names, and only assign the middle name if there is one. The DATA step syntax is easy: if countw (fullname) > 2 then second = scan (fullname, 2, ' '); The SQL syntax is harder, and just a ...Are you looking to buy something on Gumtree SA? With its wide range of products and services, Gumtree is a popular online marketplace in South Africa. However, navigating through t...proc sort data=a out=b ; by id time ; run; data c; set b; IF FIRST.id; BY id time; run; – user601828. Oct 7, 2015 at 17:28. It is bad style to have the IF statement between the SET and BY statements, but it probably will not impact the data step. If you are seeing changes in the number of distinct ID values then it should be caused by changes ...May 12, 2020 · At the very first observation of each group (identified by the internal variable first.date, which takes the value 1 in this case), seq_id is set to 1. For all the next observations of the same date, the condition 'if first.date' is false so SAS applies the 'else' statement, which results in the accumulation of seq_id's previous value + 1 -> so ... I have the following data. I sorted it by ID and date. How can I get the first date for each patient but if there is a missing value in the location column, I want the next non-missing value? data fake_data; input patID $ date monyy6. location $ outcome ; format date monyy.; datalines; 1693 Dec-14 ....It's not clear why this task of finding a first name is being done via macro functions rather than a SAS data step and data step functions. Your data will be in a SAS data set, use the proper tool, use SAS data steps and data step functions.--TITLEn will replace the Nth title line and remove any titles after that. So either of these statements should clear the titles. TITLE1; TITLE; Note that TITLE statements issued in the middle of a step will take effect when that step produces output. So make sure to terminate your PROC steps with the appropriate statement for that PROC (RUN or ...quit; proc print data=apple(firstobs=&nobs); run; This just reads the number of observations into a macro variable, and then use that to specify the first observation. (Note that var1 refers to a variable in your data.) Another approach would be to create a data view that only keeps the last observation and then print that: data tmp / view=tmp;The DO statement, the simplest form of DO-group processing, designates a group of statements to be executed as a unit, usually as a part of IF-THEN/ELSE statements. The iterative DO statement executes statements between DO and END statements repetitively based on the value of an index variable. The DO WHILE statement executes statements …Then using first. and last. variables and 2 cumulative (summarized) variables, you can generate this #1 report using the data set created in the DATA step program. I also included 2 separate steps for PROC REPORT and PROC TABULATE that generate the numbers you want without using a DATA step program:Example: if first.variable_name then do; ratevalue = 999; factor = 100.00; end; the first.variable is the 6th variable in the groupby. The first column in the group has a date value of '3-20-2017' hardcoded. So there is only 1 group with the fist column comprising of all 200K observations. Question is when I execute the above piece of code I am ...At the very first observation of each group (identified by the internal variable first.date, which takes the value 1 in this case), seq_id is set to 1. For all the next observations of the same date, the condition 'if first.date' is false so SAS applies the 'else' statement, which results in the accumulation of seq_id's previous value + 1 -> so ...Method 1: SUBSTR () & LENGTH () functions. To extract the last 4 characters from a string, you need to set the position argument of the SUBSTR () function to the fourth to last position of your string (you can omit the length argument). By definition, the fourth to last position of a string is its length minus 3.In the DATA step, SAS identifies the beginning and end of each BY group by creating two temporary variables for each BY variable: FIRST. variable and LAST. variable. These … First/Last and Do Loops need a value for maximum records to be transposed, which requires an additional step to get and set N as a macro variable First/Last and Do Loops need specific instructions to fill the excess records with blanks if number of existing records is less than N 19 Using First/Last and Do Loops 1 Example 13.13. The following program tells SAS to process the sales data set by Store and Dept, so we can get a behind-the-scenes look at how we can find the first and last observations of two subgroups: LIBNAME stat481 'C:\yourdrivename\Stat481WC\01sasdata\sasndata'; PROC SORT data = stat481.sales out = srtdsales; by Store Dept;data uscpi_dedupedByYear; set uscpi_sorted; by year; if first.year; /*only keep the first occurence of each distinct year. */. /*if last.year; */ /*only keep the last occurence of each distinct year*/. run; A lot depends on who your input dataset is sorted. For ex: If your input dataset is sorted by year & month and you use if first.year; then ...Re: COUNTER, RETAIN AND FIRST. The very first thing you will need to explain is the sort order. Since to use FIRST. there must be a BY statement, then please at least share the BY statement you are using. Solved: Hello, I'm a 2 month old SAS user and just started practicing COUNTER, RETAIN, FIRST. ,Last. and DO/END.The last column of the table tells whether the variable is available for processing in the DATA step. If you want to rename the variable, use the information in the last column. ... it is helpful to know that SAS drops, keeps, and renames variables in the following order: First, options on input data sets are evaluated left to right within SET ...You can use the following basic syntax to calculate a cumulative sum in SAS: data new_data; set original_data; retain cum_sum; cum_sum+sales; run; . This particular syntax creates a new dataset called new_data that contains a new column called cum_sum that contains the cumulative values of the column called sales.. The following example shows how to use this syntax in practice.I would like to create a variable from first name, last name, and date of birth that looks like this: First letter of first name + 3rd letter of first name + first letter of last name + 3rd letter of last name + DOB (mmddyy) + indicator of race (1-4) + Letter U For example, for a person with thi...I need the date to show as the first day of the month. In this case 01JAN2015. 0 Likes 1 ACCEPTED SOLUTION Accepted Solutions data_null__ ... Watch our general sessions LIVE or on-demand starting April 17th. Hear from SAS execs, best-selling author Adam Grant, Hot Ones host Sean Evans, top tech journalist Kara Swisher, AI expert Cassie Kozyrkov ...SAS matches the first value in the list with the first variable in the list of elements, the second value with the second variable, and so on. Element values are enclosed in quotation marks. To specify one or more initial values directly, use the following format: (initial-value(s) ... SAS uses the last value.) You can also use RETAIN to assign ...Hi @mlensing,. There are various ways to achieve what you want. draycut's suggestion is short and elegant.To sort the non-missing SSN values first in ascending order, followed by the missing values, you could create an additional sort key in your DATA step:... set work.Contact_IA work.Contact_MS work.Contact_UT(in=UT); nossn=UT;... The IN= dataset option creates a temporary 0-1 flag so that UT ...Oct 19, 2023 · Check out this paper if you want to see SQL implementation for first. & last. Advanced Programming Techniques with PROC SQL. If you are trying to apply the SQL to a third party Relational Database such as Teradata/Oracle to name few, you may need to check this paper . Your Database Can Do SAS® Too! Hope this helps, Ahmed On the one hand it sounds like you want to GENERATE data based on some macro variable. If that is the case write a date step. You should be able to write the data step using data step DO looping and just set the bounds of the loops using the macro variables. data want; do c= 1 to &num_clusters;Jul 7, 2022 · As Paige said, the best tool is data step,NOT sql. Anyway, there is some sql code could get first last. But I don't like it. proc sort data=sashelp.class out=have;by sex;run; ods select none; ods output sql_results=sql_results; proc sql number; select * from have; quit; ods select all; proc sql; create table want as select * from sql_results group by sex having row=min(row) or row=max(row); quit; SAS places FIRST.variable and LAST.variable in the program data vector and they are therefore available for DATA step programming, but SAS does not add them to the SAS data set being created. It is in that sense that they are temporary. Because SAS does not write FIRST.variables and LAST.variables to output data sets, we have to do some ...set Analysis; if lag (visitdate)- visitdate = 90 then laginjury = 'new'; else laginjury = 'Follow-up'; run; proc print; run; I want to. 1. subset my injuries : (an injury is new if there were no previous visits with an injury within 90 days..otherwise it's a follow up) 2. Be able to mark each injury as being "new" or "follow up".If you came from a SAS programming background, you may have seen the INTNX function that applies basic arithmetic to dates. For example, you can use the function to add or subtract days, weeks, months, quarters, or years to an existing date. By setting the alignment parameter, you can establish if the resulting date will be in the beginning of the period, at the end, middle, or the same as the ...In our example, the FIRST.race variable is 1 when SAS processes row 1, 3, and 6 because these are the first row of each "race-group". Because the number 1 has the same meaning as TRUE, we can use FIRST.race in an IF Statement to filter the first row per group. data work.first_by_group; set work.my_ds_srt; by race;The YEAR w. format is similar to the DTYEAR w. format in that they both write date values. The difference is that YEAR w. expects a SAS date value as input, and DTYEAR w. expects a datetime value. Examples. The example table uses the input value of 16601, which is the SAS date value that corresponds to June 14, 2005. SAS Statement.Perhaps not the most efficient way: First pass - assign row no to a variable (_n_) and delete all Obs with missing until the firs non missing. Use first. logic and a flag to keep track if you encountered the first non missing within the by group. Second - resort the data set descending based on the previously created row no variable.2. You want to SORT the data by SUBJECT and NO. But tell the DATA step to group it by SUBJECT and AVAL. You will need the NOTSORTED keyword because it is not sorted by AVAL value. set test; by SUBJID AVAL notsorted; if first.AVAL then FLG = 1; if last.AVAL then FLG = 2; PS The FIRST. and LAST. flag variables are not functions.SASの基本的な機能でよく使われる、一時変数 「 FIRST.BY変数 」「 LAST.BY変数 」 を解説したいと思います。. まずは例をご覧ください。. length FLG1 FLG2 $1.; データステップ内にBYステートメントが書いてあると、「 FIRST.BY変数 」と「 LAST.BY変数 」という一時変数 ...SAS macro: First and last working day of previous week. Hi Guys, I use this code to get the date of Monday and Friday from previous week -. %let first_day=%sysfunc (intnx (week.2,%sysfunc (today ()),-1,b),date9.); %let last_day=%sysfunc (intnx (week.6,%sysfunc (today ()),0,b),date9.); The macro is usable for most weeks, except when there's a ...choosing the first date and last date in a dataset. Posted 12-12-2011 11:17 AM (3181 views) I am using the code suggested in one of the answers as I want to get the first and last date of a country. data get_first_and_last; set master_table; by ID Date; if first.date or last.Date then output; run; However, I still get the dates in between and I ...Apr 23, 2019 · The best thing you did is accurately count the number of elements in your array. I'm going to sketch out valid code for what I think you are trying to do here. data test33; set perso.test; by epci; array sexage {101} sexage000 - sexage100; array sex {101} SEXE1_AGED100000-SEXE1_AGED100100; if first.epci then do i=1 to 101; sexage{i} = 0; end ... Your code only removes the first five and last five observation of the whole dataset which is over 3000 observations. What I want is to remove first five and last five observation for each bridge which has 25 observation each. The dataset of 120 bridges makes the 3000 observations. I only want to retain the middle 15 observation for each bridge.This is a format problem. What you want is the first significant digit of the number. Check David Chapman's NESUG or SUGI paper on user define formats and proc report. He shows how to create a format to show the first two significant digits. Just modify that to show the first significant digit.quit; proc print data=apple(firstobs=&nobs); run; This just reads the number of observations into a macro variable, and then use that to specify the first observation. (Note that var1 refers to a variable in your data.) Another approach would be to create a data view that only keeps the last observation and then print that: data tmp / view=tmp;Re: get first day and last day of month FORMAT AS: 1APR2017 00:00:00 AND 30APR2017 23:59:59 Posted 04-20-2017 12:16 PM (27608 views) | In reply to JHE Today() gives you a date, so you'd need to change the "dtmonth" to month.Get the last row with the the END option in the SET statement. data want; set sashelp.class end=eof; if eof then output; run; EOF is short for end of file. Programmers like to use this term, but you can put whatever you want here. For example, this would also work: data want2; set sashelp.class end=awesome; if awesome then output;4. Using Joe's example of a macro variable to specify the number of observations you want, here is another answer: do _i_=nobs-(&obswant-1) to nobs; set have point=_i_ nobs=nobs; output; end; stop; /* Needed to stop data step */. This should perform better since it only reads the specific observations you want.After sorting the rows, I want to PRINT the top 5 rows only (the top five highest values for FacilityCountry). I have tried to use (OBS=5) in the PROC PRINT date= statement, but it does not work. Looking for ideas. DATA MIS543.TOYS2; SET MIS543.TOYS; KEEP FacilityCountry Sales; RUN; PROC REPOR...FIRST.VARIABLE & LAST.VARIABLE PROBLEM. What is the output you need. with the current record it will delete only the record in each cpnp group if the last in group is having plant='USM' and there are more than one record for that group. Please let us know your input and output required to help you more'.Re: Selecting second observation within multiple observations. The BY statement creates automatic variables for the first and last of each group of values. Those values are referenced as FIRST.variable name or LAST.variablename and are numeric values that have a value of 1 when true and 0 when false.Re: First and last day of month using Macros in proc sql. Hi, INTNX wants a SAS Date, and 201405 is not a SAS date (at least it's not the SAS date you want). You can use INPUT () to convert 201405 to a SAS date, something like: (untested) %put %sysfunc(inputn(201405,yymmn6.),mmddyy10.); %put %sysfunc(intnx (month,%sysfunc(inputn(201405,yymmn6 ...Re: If first. then group by; how to restart count. You have to include the variables in the BY statement if you want SAS to set values for FIRST. and LAST. variables for them. You have to tell SAS not to reset the new variable COUNT to missing when it starts the next iteration.Join us for SAS Innovate April 16-19 at the Aria in Las Vegas. Bring the team and save big with our group pricing for a limited time only. Pre-conference courses and tutorials are filling up fast and are always a sellout.The value of these variables is either 0 or 1. SAS sets the value of FIRST. variable to 1 when it reads the first observation in a BY group, and sets the value of LAST. variable to 1 when it reads the last observation in a BY group. These temporary variables are available for DATA step programming but are not added to the output data set.The value of these variables is either 0 or 1. SAS sets the value of FIRST. variable to 1 when it reads the first observation in a BY group, and sets the value of LAST. variable to 1 when it reads the last observation in a BY group. These temporary variables are available for DATA step programming but are not added to the output data set.Here's an example of how that would work. Some efficiency tricks: Use format dtdate9 on your datetime variable to summarize data by date. Use Range for the date variable to obtain the max time - min time. Datetime is stored as seconds, so convert to a number by dividing by 60 for minutes and another 60 for hours.Aug 5, 2020 ... 文章浏览阅读1.7w次，点赞8次，收藏52次。在SAS的DATA步中，可以使用by分组，在处理过程中会产生两个临时变量FIRST.variable和LAST.variable， ...When it comes to finding the perfect pair of shoes, comfort and performance are two crucial factors that cannot be compromised. In the realm of men’s footwear, SAS shoes have gaine...Hello , I am try to write code in Proc sql for below data step , but i am not getting as results in data step vs proc sql. My data step: data last_ass_dt; set all_results; by usubjid rsdt; if first.usubjid; keep usubjid rsdt; run; …Summary. In summary, the BY statement in the DATA step automatically creates two indicator variables. You can use the variables to determine the first and last record in each BY group. Typically the FIRST.variable indicator is used to initialize summary statistics and to remember the initial values of measurement.Join us for SAS Innovate April 16-19 at the Aria in Las Vegas. Bring the team and save big with our group pricing for a limited time only. Pre-conference courses and tutorials are filling up fast and are always a sellout.Hi, I have a dataset in which Obs can become either "1" or "0". For every observation where Obs is "0", it needs to be determined the time when Obs started to be "0" (Time_first), the next time it becomes "1" (Time_last), and the time of …I feel the same there should be a SAS function for it :-) It can be calculated with the following logic : Create a sequence of numbers and then sort the sequence by descending order. Then we calculate lag of the variable for which we need to calculate lead. At last, we sort the data by sequence ID. data temp; set example; x + 1; run; proc sort ...Jun 23, 2016 · If you want to reproduce COUNT in the datastep you will have to use the double DOW. The dataset is SET twice. First time to count rows by ID and date. Second time to output all rows. data out; do _n_ = 1 by 1 until (last.date); set test ; by ID date; if first.date then count = 1; line @1 "*your notes here. "; endcomp; This way the footnotes will appear right after your table, and only once. If you would like to define different notes based on the contents in the table, then you should do this: break after pagecounter/page; %if &flag ne 1 %then. %do; compute after pagecounter;From the fifth column and on, there are dates for columns. Each row has a first and last date where dollars were spent. I am looking to create new columns called "Earliest Dollars Spent" and "Last Dollars Spent" for each row. What code can I write to do this? I am new to SAS and programming in general.195. 11K views 2 years ago SAS Beginner to Pro | SAS Tutorial for Beginners. This video provides a comprehensive explanation of First.Variable and …Yes I have considered proc freq but i am interested in the number of patients making the total number of clinic visits per month. In my data example above I would want to know there were 2 patients visited the clinic 5 times in January and 1 patient visiting 6 clinics in January. 5 clinic visits= 2...Sample 24737: Search a character expression for a string, specific character, or word. Choose appropriate INDEX function to find target strings, individual letters, or strings on word boundaries. Note: Sample 1 uses INDEX to search for the first occurrence of a 'word' anywhere in a string. If the string is not found, the result is zero.Re: first and last observations using proc sql. Since SQL is a column based language, doing calculations according to row numbers is not SQL's cup of tea. Maybe you can do some complicated query using the unsupported monotonic function. But, this is so much easier done with data step.First, let’s keep things simple and do the imputation for just one county. The intent of the following DATA step is to impute the missing price of 2005 for the last county. DATA EXAMPLE3_WRONG; SET EXAMPLE3 (WHERE=(COUNTY=1003)); IF PRICE NE . THEN PRICE_IMPUTE = PRICE; ELSE PRICE_IMPUTE = LAG(PRICE)*1.1; RUN;Hello, I'm looking for a function that would return the first value in a row of variables and one that will return that last value in the row. For example, if I have a data set like this: var1 var2 var3 var4 var5 var6 var7 var8 2 1 7 4 3 5 6 9 4 6 10 15 23 2 10 0 15 22 6 4 2 98 1 20 I'd like to...In this video, we will see how SAS creates first. and last. temporary variables when there is more than one variable in the by statement. In this video, we will see how SAS creates first. and last ...
Initial missing values and First/Last (Jesse Coull's approach) instructs SAS to create all N records for each account, which then are filled with the existing data or remain blank This approach has additional advantages if one of the variables in the dataset is a time variable. Where is ross shimabuku 2023
As you can see the have data set has multiple cal columns. Since this is transposed data that i have it can have any number of val columns. My requirement is, I need the last column value(if its not null) as the first column value in the want data set. Some id can have all the val columns with data, some can have only few val columns with data.1. Selecting Values That Begins With Char String. In this example data rows are selected based on the model description that begins with the character "A4" from cars dataset. The STRIP function to suppress the blank spaces from the string data.. The STRIP function returns the argument with all leading and trailing blanks removed.Jan 29, 2015 · The Right Way to Obtain Duplicates in SAS. To obtain ALL duplicates of a data set, you can take advantage of first.variable and last.variable . Here is the code to do it with the above example data set of test; you will get both the single observations and the duplicate observations. Re: Calculate difference between first and last observation. Posted 04-09-2017 01:11 PM (2452 views) | In reply to mhinchy. Here is one way: data want; set have end=last; retain first; if _n_ eq 1 then first=profit; if last then do; result=profit-first;Oct 31, 2019 · Re: COUNTER, RETAIN AND FIRST. The very first thing you will need to explain is the sort order. Since to use FIRST. there must be a BY statement, then please at least share the BY statement you are using. Solved: Hello, I'm a 2 month old SAS user and just started practicing COUNTER, RETAIN, FIRST. ,Last. and DO/END. It will not delete all duplicates. This will delete only the last record of each CPNP group if it is not first and also where plant=USM. If you wants to delete all duplicates and out of all duplicates you want to keep only the first record where plant=USM then you can go for the code given below:-. WHERE PLANT='USM';which is a lot more efficient than using MONOTONIC, if you only want to get the last observation, and also faster than my first example. The same thing can be done in a data step like this: Data last; set sashelp.class nobs=nobs point=nobs; output; stop; run; and this is also a lot faster than reading the whole table like in your example.Feb 17, 2020 ... 以下將介紹first.variable 與last.variable 的應用， 利用這兩個指令，完成以下三項任務(1)歸戶(2)定義第幾次就醫記錄(3)定義門診就醫三次以.Hi, I have names in my table that have the first and last name format. I need to convert the format to first initial follow by dot then last name. For example, Sandy Chint would be S.Chint, Kathy Kumarxy would be K.Kumarxy, and Thomas P Magliu would be T.Magliu These names have first and last name...The END=last option tells SAS to create a temporary numeric variable called last, which is initialized to 0 and set to 1 only when the SET statement reads the last observation in the input data set.Although we used the variable name last here, we could have used any valid SAS variable name. The variable is temporary in that it is placed in the program data vector but not written to the output ...The DO statement, the simplest form of DO-group processing, designates a group of statements to be executed as a unit, usually as a part of IF-THEN/ELSE statements. The iterative DO statement executes statements between DO and END statements repetitively based on the value of an index variable. The DO WHILE statement executes statements in a DO ...Hi, I have a dataset in which Obs can become either "1" or "0". For every observation where Obs is "0", it needs to be determined the time when Obs started to be "0" (Time_first), the next time it becomes "1" (Time_last), and the time of the next observation (Time_next). The best solution I found ...The First. and Last. variables have values of 0 when SAS is processing an observation with the first occurrence of a new value for those variables, and a value ...Mar 21, 2019 ... Enumeration in SAS - within a group and by group (concept of first.variable and last.variable) · Comments14.One way to just display without actually removing from the data: Proc print data=<your data set name goes here> (firstobs=2); run; Or if you want to filter on the value of one or more variables use a WHERE statement: proc print; where id ge 2; run; That keeps where the value of the VARIABLE id is 2 or more.Join us for SAS Innovate April 16-19 at the Aria in Las Vegas. Bring the team and save big with our group pricing for a limited time only. Pre-conference courses and tutorials are filling up fast and are always a sellout.Hear from SAS execs, best-selling author Adam Grant, Hot Ones host Sean Evans, top tech journalist Kara Swisher, AI expert Cassie Kozyrkov, and the mind-blowing dance crew iLuminate! Plus, get access to over 20 breakout sessions.Apr 15, 2020 · Conditional first. & last. Posted 04-14-2020 10:55 PM (961 views) Hi 🙂. I want to create a conditional variable (outcome) based on accident_id and road_user_type: - if anyone in an accident was a vulnerable road user > then outcome = 1; - else if everyone in an accident was a MVO > then outcome = 2; - else outcome = 3. .
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