How do I get last obs in SAS?
How do I get last obs in SAS?
RUN; 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.
How do I get last 10 on OBS with SAS?
/*Last 10 obs*/ data last10 /view = last10; startobs = nobs – 9; set ia. usage nobs = nobs firstobs = startobs; drop startobs; run; proc print data = last10; run; If you want both in the same proc print, you can create two views and combine them into another view, then print it: data first10 /view = first10; set ia.
How do I get the last row in SAS?
If you really were getting the last row, a much faster SAS technique would be to use the POINT= and NOBS= options, something like this: data refTable; get_me = nobs; set vhd(keep=v69c1ec v69dhec v69nbms fixing) point=get_me nobs=nobs; output; stop; run; Notice this only works if you do NOT include a WHERE clause!
What is first dot and last dot in SAS?
VARIABLE assigns the value of 1 for the first observation in a BY group and the value of 0 for all other observations in the BY group. LAST. VARIABLE assigns the value of 1 for the last observation in a BY group and the value of 0 for all other observations in the BY group.
What does last do in SAS?
When an observation is the last in a BY group, SAS sets the value of LAST. variable to 1. This happens when the value of the variable changes in the next observation. For all other observations in the BY group, the value of LAST.
What is Missover SAS?
The MISSOVER tells SAS that when you try to read past the end of the line just return a missing value. The default behavior is the FLOWOVER option in which case SAS will move on to the next line to look for enough values to satisfy the input statement.
What is first and last in SAS?
What is first OBS in SAS?
The FIRSTOBS= data set option affects a single, existing SAS data set. Use the FIRSTOBS= system option to affect all steps for the duration of your current SAS session. FIRSTOBS= is valid for input (read) processing only. Specifying FIRSTOBS= is not valid for output or update processing.
