Hi all, thanks in advance.   I've been searching for a while and haven't been able to be successful to find a solution.   I'm looking at a bunch of survey data, and running the chi-square tests for categorical variables have been straightfoward with the following code that I'm using:   PROC SURVEYFREQ DATA=xxx; cluster yyy; strata zzz; weight aaa; VAR Kidney*Gender/row chisq; RUN;   I have been trouble coming up with the code to run the t-tests similarly for continuous variables however. Could someone give me an example? The proc t-test doesn't seem appropriate for the large weighted survey data - is there a similar way to do this with surveymeans?   Thanks. ... View more

Quick question about the chi square from the surveyfreq command,   I'll enter something like the following:   PROC SURVEYFREQ DATA= code; CLUSTER xxxx; STRATA xxx; weight xx; TABLE obesity*gender/chisq; RUN;   I get a chi square result. However if I double check this result with any online 2x2 table calculator, the p-value is different.   However if I do a regular PROC FREQ chisquare instead of surveyfreq, the p-value checks out with all those online calculators.   Am I doing something wrong with the surveyfreq command? Or is the calculation intrinsically different for a surveyfreq such that it won't check out with the online calculators like regular proc freq does?   Thanks ... View more

Hi, I am trying to run a t-test on a variable that is present in 2 large datasets that are already created as SAS datasets.   Example: trying to run a t-test between 2 "Age" groups in 2 different files File 1: n = 5,000 File 2: n = 150,000   Is there a way to easily run the t-test between these files without actually combining the files? I've googled and all I find is how to do the t-test within one file or with the infile approach.   Thanks. ... View more