I've noticed that the 'spearman' command does not store its test results
(which are printed out) in the $test and $pvalue accessors. One side
effect of this is that a user might grab wrong values there which
actually stem from whatever test was done directly before.
Also it might make use of the $result accessor to store the rank
correlation itself. I'm aware that you can get this value by doing
corr(ranking(x), ranking(y)), so maybe this part is not so important.
(But might be mentioned in the help.)
I've noticed this behavior, perhaps Windows-specific:
? eval @gretldir
Das Symbol 'C' ist nicht definiert # [undefined]
? eval $gretldir
I would have expected @gretldir to either work, or to return an empty
string, or to throw an error, but not this problem. Maybe some backslash