All of the recommended work. Thanks.
That makes me aks the next question:
I used to do like this in SAS code:
data mydata(drop=column_ID_1_old);
retain column_ID_1;
column_ID_1_old=column_ID_1;
set mydata;
if nobs=. then nobs=1;
else if (column_ID_1=column_ID_1_old) then nobs=nobs+1;else nobs=1;
run;
column_ID_1 would have a categorical value of some kind, based upon which the numbering would restart, each time the column_ID_1 changed its value. This is very useful when creating graphs that have panes that wrap. All of these must have the same x-axes, otherwise the graphs do not line up nicely. At least so I found.
So, my next question is: How to do this in JMP? Create the new column so that it restarts counting when another columns changes its value.
Regards Poul