.nominal.associations using theils_u

[shikhagarwal]

As per the documentation, if nom_nom_assoc == 'theil' in .nominal.associations, then the output is U(row | col). I spot-checked for my data and turns out that the heat-map outputs U(col | row) and not U(row | col).

if nom_nom_assoc == 'theil':
     ji = theils_u(dataset[columns[i]], dataset[columns[j], nan_strategy=_SKIP) #change to ij
     ij = theils_u(dataset[columns[j]], dataset[columns[i]], nan_strategy=_SKIP) #change to ji

Could you please clarify. Thank you.

[shakedzy]

You might be correct, there's an error in the documentation. It indeed is U(col | row). It seems like I wrote it correctly everywhere else except than in that formula - including the line just before, where it states that rows are the provided information. That's a serious face-palm write there. I'll fix the formula. Thanks!