On Sat, 12 Feb 2011, Allin Cottrell wrote:
> On Sat, 12 Feb 2011, Birger Baksaas wrote:
>
> > Coefficients from the Ordered Logit function are correct in gretl, but
> > the signs seem to be mixed up.
>
> I note that the gretl coefficients and cut-points (magnitude and
> sign) agree with those given by Wooldridge...
In addition:
<script>
open pension.gdt
logit pctstck const choice finc25 wealth89 prftshr
foreign language=R --send-data
library(MASS)
y <- factor(pctstck)
plr <- polr(y ~ choice + finc25 + wealth89 + prftshr,
method = "logistic")
summary(plr)
end foreign
</script>
The coefficients (and cut points) given by gretl and R are
identical in both magnitude and sign.
Allin Cottrell
