Re: [Gretl-devel] [Gretl-users] Kendall's tau

In general, built-in functions don't print anything, so it would be the code that calculates tau and its associated z-value that would have to be hooked up; printing would be skipped. There are two ways we could give access to Kendall's tau and Spearman's rho: we could add a third, optional argument to the corr() function to select a variant other than Pearson, or we could add a --quiet option to the "corr" command and make it store $test and $pvalue, so you could use it in function-like mode.