For a simple regression on one explanatory variable i want to extract the t-stat on this variable and then divide this by the number of observations used in the regression. I need to do this for a number of regressions so i want to be able to write the commands rather than do it by hand.
When programming, you should use ODS OUTPUT statements to store informations displayed by your regression task into SAS datasets, so that you can re-use them to compute ratios or anything else.
Assuming that you're using PROC REG as a regression program (check the log in your task, or the generated code, if you have any doubt), that would mean doing something like :
ODS OUTPUT nObs = work.obs_number
(WHERE = (label = "Number of Observations Used"))
parameterEstimates = work.tstats ;
/* here just copy and paste the PROC REG code built by your Enterprise Guide task */
DATA work.t ;
work.obs_number (KEEP = NobsUsed) ;
ratio = tValue / NobsUsed ;
PROC PRINT DATA = work.t LABEL ;