topic Re: Chi-sqaure test in Statistical Procedures

Chi-sqaure test

sumah — Mon, 27 Sep 2021 22:06:54 GMT

Re: Chi-sqaure test

sumah — Mon, 27 Sep 2021 22:10:48 GMT

I have run a Ch-sqaures test on these variables. that was the SAS output categories for both variables are (yes vs no). why another row (No) didn't show in the table? Can I run chi-squares if one variable has 0 obs in one category?

Re: Chi-sqaure test

SASKiwi — Mon, 27 Sep 2021 22:32:44 GMT

Most likely you will see something like this in your SAS log. You need at least two non-missing categories for both of your variables to do the Chi Square test.

34         proc freq data = sashelp.class;
35           where Sex = 'F';
36           table age * sex / chisq;
37         run;

NOTE: No statistics are computed for Age * Sex since Sex has less than 2 nonmissing levels.
NOTE: There were 9 observations read from the data set SASHELP.CLASS.
      WHERE Sex='F';
NOTE: PROCEDURE FREQ used (Total process time):
      real time           0.09 seconds
      cpu time            0.04 seconds