proc iml; do k=1 to 5; call symputx('kk',k); j=k+1; s=J(1,2,0); s[1]=k; s[2]=j; create s&kk. from s; append from s; close s&kk.; end; quit;   Here is one example, and it seems that call symputx does not work in loops? ... View more

Hi guys,   How can I avoid the truncation of the data in the data steps(merge the datasets) of the loop?   The warnings show:   WARNING: Multiple lengths were specified for the variable SecName by input data set(s). This can cause truncation of data.   libname sd "D:\data\sasdata"; %macro indexes(); proc import out=sd.index datafile="D:\data\indexcsv\3index_all.csv" dbms=csv replace; run; %do k=1 %to 30; proc import out=index datafile="D:\data\indexcsv\3index_all.part&k..csv" dbms=csv replace; run; data sd.index; set sd.index index; run; %end; %mend; %indexes();   ... View more

Hello,   As forecast procedure say, "The FORECAST statement generates forecast values for a time series by using the parameter estimates produced by the previous ESTIMATE statement. See the section Forecasting Details for more information about calculating forecasts.", FORECAST in Proc Arima is in-sample prediction?   If it is, how can I do out-sample prediction? Does SAS provide a proc to do the out-sample prediction?   ... View more

proc iml; b={1 2,3 4,5 6}; k=nrow(b); quit; %macro try(); %do k=1 %to k; proc iml; t=exp(k); print t; quit; %end; %mend; Hey Guys,   Here is an example. I want to transmit the number of rows of the matrix b to the interation steps in the macro. How can I do?   Thanks a lot! ... View more