MATLAB: How to peform multiple paired-t tests

Question

To my knowledge

 ttest.m

can be used to peform a single parired t test, e.g., ttest(x,y), and the function can also be used for mutiple paired t tests when it is called many times. I wonder if there are some functions for multiple paired ttests, e.g., among x1, x2, x3 and x4, without calling ttest.m many times?

Answer 1

You need to be very careful doing multiple comparisons. See the documentation for this multcompare (link) function (there are two). It will likely do what you want.