12-22-2016 07:12 AM - edited 12-22-2016 07:15 AM
data weight_club; input IdNumber 1-4 Name $ 6-24 Team $ StartWeight EndWeight; Loss=StartWeight-EndWeight; datalines; 1023 David Shaw red 189 165 1049 Amelia Serrano yellow 145 124 1219 Alan Nance red 210 192 1246 Ravi Sinha yellow 194 177 1078 Ashley McKnight red 127 118 ; run;
my question is how to trace this program , line by line and control goes from which statement to which statement?
12-22-2016 07:33 AM
You might want to look at the data step debugger. Available in DMS SAS (SAS old fat client) or the latest version of Enterprise Guide.
If that's not feasible, insert PUT statements in the code to track whats happening and what values variables have.
12-22-2016 07:42 AM
If you want to trace/debug the flow of a SAS data step, you can use the /debug option.
example: data weight_club / debug; ..... run;
To see more example and debug commands usage example, checkout this link DATA Step Debugger
Hope this helps,
12-22-2016 08:37 AM
If this is what you mean by "trace", you would normally add PUT statements to a DATA step. For example, after the DATA statement, add:
put '#1 ' _all_;
After the INPUT statement, add:
put '#2 ' _all_;
After the LOSS= statement, add:
put '#3 ' _all_;
If you are dealing with large numbers of observations, you might want to limit the number of messages you get. For example, yo u might limit the number of observations read in using OBS=, or you might condition the PUT statements by adding:
If _n_ < 10 then put ......;