abline(v=c(intercept1,intercept2,intercept3))
On 09/06/07, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
Hi,I have a result from polr which I fit a univariate variable (of ordinal
data) with probit function. What I would like to do is to overlay the plot of
my fitted values with the different intercept for each level in my ordinal
data. I can do something like:lines(rep(intercept1, 1000),
seq(from=0,to=max(fit),by=max(fit)/1000))where my intercept1 is, for example,
the intercept that breaks between y=1 and y=2 labels and the max(fit) is the
maximum of overall fitted values or maximum of all ordinal y labels. I'm
wondering if there is better way to do this? If you could let me know, I
would really appreciated. Thank you.- adschai
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David Barron
Said Business School
University of Oxford
Park End Street
Oxford OX1 1HP
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