Hi all,
I am using polr(). The resulting coefficients of first levels are always 0.
What to do if I wnat to get the coefficients of the last level 0.
For example, suppose x has 3 levels, 1, 2, 3
probit <- plor(y ~ x, data1, method='probit')
will get coefficients of level 2, 3 of x, but I want coefficients of level
1, 2
Thank you,
Tian
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