keep geeting an error in Line 172 when trying to use the Vartestn or the anova

I Did this exercise a week ago in class and all the functions worked fine. now every time I try to use to vartestn I get the following error:

Error in vartestn (line 172)
           [p,atab] = anova1(xc.^2, igroup(t),'off');

Error in Answers_L3 (line 23)
p=vartestn(values,group_code,'TestType','LeveneQuadratic');

[dpb]

Try

which -all vartestn

and report...

clear vartestn

probaby won't help but can't hurt...

Is this same version/release/system you're working on?

[Walter Roberson]

What is the complete error message?

The code works for me when I test.