[Gretl-devel] Binary Logit with string series

Hi all, I just stumbled over the following challenge. In the first example, I run a binary logit with a numeric (discrete) encoded variable "dirnum". In the second example, the dependent is string-valued series "dirstr" with only two distinct values ("down", "up"). The logit command estimates a binary logit for the first example (as expected) and a ordered logit for the 2nd example, however. The reason might be that for "stringified" series, the minimal distinct value is 1 and not zero. Even though the magnitude of the coefficients are equals, the sign may differ. Also, some statistics such as R^2 and the contigency table are not printed for the ordered case. Is this an expected behavior? <hansl> set verbose off clear open nysewk.gdt series ret = ldiff(close) series dirnum = ret >= 0 ? 1 : 0 # 0-based series dirstr = ret >= 0 ? 2 : 1 # has to be 1-based for stringify() to work strings direction = defarray("down", "up") stringify(dirstr, direction) print -o --range=1:3 # Both only have two distinct values eval values(dirnum) eval values(dirstr) logit dirnum const # binary logit logit dirstr const # ordered logit </hansl> Best Artur