[R] "vcov" error in svyby and svytable functions

g this error because both svyby and svytable functions do not have "vcov" as one of their arguements. I tried svytable without the svyby and it works fine. Any help on this would be appreciated. Thanks, Debarchana. -- Debarchana Ghosh Research Assistant, Department of Geography

[R] Lattice package par.settings/trellis.par.settings questions

s()/ but didn't understand how to use it and where exactly to put it. Any help with this will be appreciated. Thanks, Debarchana. -- Debarchana Ghosh Research Assistant Department of Geography University of Minnesota PH: 8143607580 email to: [EMAIL PROTECTED] www.tc.umn.edu/~ghos0033

[R] Problem with ordered logistic regression using polr function

x27;m getting the following error: Re-fitting to get Hessian Error in if (all(pr > 0)) -sum(wt * log(pr)) else Inf : missing value where TRUE/FALSE needed Could anybody point out the problem? Thanks, Debarchana. -- Debarchana Ghosh Research Assistant Department of Geography Univer

[R] Problem with ordered logistic regression using polr function.

I'm getting the following error: /Re-fitting to get Hessian Error in if (all(pr > 0)) -sum(wt * log(pr)) else Inf : missing value where TRUE/FALSE needed /Could anybody point out the problem? Thanks, Debarchana. -- Debarchana Ghosh Research Assistant Department of Geograp

[R] Survey-weighted ordered logistic regression

mand, I've found that you can fit a logistic regression (binary response variable) by specifying the family=binomial in svyglm function. However I'm unable to fit an ordered logistic model in 'svyglm function'. Any help with this will be appreciated. Thanks, Debarchana. -- De

[R] Ordered Logistic Regression in survey command

Hi, How can I do ordered logistic regression in svyglm? Thanks, D. -- Debarchana Ghosh Research Assistant Department of Geography University of Minnesota PH: 8143607580 email to: [EMAIL PROTECTED] www.tc.umn.edu/~ghos0033 __ R-help@stat.math.ethz.ch