Error message with two-sample K-S test

[Ganesalingam Narenthiran]

I have Stata/IC 15.1

I downloaded the file ksxmpl.dta

When I perform two-sample K-S test, I get the following error

. ksmirnov group, by(x) exact
x takes on 7 values, not 2
r(450);

I have tried different data set with this test and still the same error.

What might be going wrong?

Thank you!

[Martyn Sherriff]

Try

ksmirnov x, by(group) exact

From help:

Two-sample Kolmogorov-Smirnov test

        ksmirnov varname [if] [in] , by(groupvar) [exact]

[Ganesalingam Narenthiran]

Thank you! Advice was helpful in figuring out the problem.
Figured out the problem, I had put the data for each group in separate columns (as I had done with XLStat and StatsDirect). However, Stata requires the group (1 or 2) in one column and the data on the second column.