Zelig May 2009

zelig@lists.gking.harvard.edu

7 participants
6 discussions

by Matthias Studer

Hi, First of all, thanks for Zelig. I have a problem when using Zelig (Version 3.4-5, built: 2009-03-13). Here are my results before loading Zelig > p<-c(1992:2008,1992:2008) > summary(p) Min. 1st Qu. Median Mean 3rd Qu. Max. 1992 1996 2000 2000 2004 2008 And then when loading Zelig >library(Zelig) > summary(p) Min. 1st Qu. Median Mean 3rd Qu. Max. 1990 2000 2000 2000 2000 2010 Any idea ? Thanks. Matthias Studer - Zelig Mailing List, served by Harvard-MIT Data Center Send messages: zelig(a)lists.gking.harvard.edu [un]subscribe Options: http://lists.gking.harvard.edu/?info=zelig Zelig program information: http://gking.harvard.edu/zelig/

14 years, 11 months

Zelig 3.4-6 released

by Ferdinand

Hi everyone, Zelig version 3.4-6 is online (http://gking.harvard.edu/zelig/). In this version we have included the quantile regresion model (thanks to Alex D'Amour), fixed the "digits" option (thanks to Matthias Studer), removed the old multinomial log-linear regression model etc. As usually, to update/install this release: - *nix / windows users: install.packages("Zelig", repos="http://gking.harvard.edu" <http://gking.harvard.edu%22>) - mac users: install.packages("Zelig", repos="http://gking.harvard.edu" <http://gking.harvard.edu%22>, type="source") thanks, Ferdi

14 years, 11 months

setx and setting an iv to a value stored in a variable

by Donald Braman

I'm trying to set an independent variable to one sd above and below the mean. I can set the number directly, but as the results below show, I can't set it to a variable. Any easy way to do this? > e.low <- mean(miin1$egalitarianism)-sd(miin1$egalitarianism) > e.low [1] 1.975 > e.high <- mean(miin1$egalitarianism)+sd(miin1$egalitarianism) > e.high [1] 2.938 > > x.out <- setx(z.out, egalitarianism = e.low) Error in eval(expr, envir, enclos) : ..1 used in an incorrect context, no ... to look in > > x.alt <- setx(z.out, egalitarianism = e.high) Error in eval(expr, envir, enclos) : ..1 used in an incorrect context, no ... to look in > > x.out <- setx(z.out, egalitarianism = 1.975) > x.alt <- setx(z.out, egalitarianism = 2.983) > Donald Braman Associate Professor of Law The George Washington University Law School 2000 H Street, NW | Washington, DC 20052 tel (202) 994-0572 | fax (202) 994-3377 http://www.law.gwu.edu/Faculty/profile.aspx?id=10123 http://research.yale.edu/culturalcognition http://ssrn.com/author=286206

14 years, 11 months

Weights in ologit

by John Michael Connolly

Hello, I see that weights have been incorporated into ologit, but are these frequency weights or probability weights? Thanks, John Connolly - Zelig Mailing List, served by Harvard-MIT Data Center Send messages: zelig(a)lists.gking.harvard.edu [un]subscribe Options: http://lists.gking.harvard.edu/?info=zelig Zelig program information: http://gking.harvard.edu/zelig/

14 years, 12 months

comparing regression fit statistics with multiple imputations

by Donald Braman

I'd like to compare the fit of two regression models (before and after entering a new independent variable). When I regress with multiple imputations, though, I don't see any fit statistics. Are they easily accessible?

14 years, 12 months

simple instructions from amelia to zelig !!!

by ��

I am pretty new to R ,Zelig and Amelia. Can somebody give simple instructions (unfortunately are missing from the ppt file) how from amelia you can combine the imputation files to zelig? for example I have a text file mis.txt *From the R environment :* >misi<-read.table('C:\\Documents and Settings\\thomas\\Desktop\\mis.txt', header=T) >output<-amelia(x=misi, empri=10,ords=c(3,4)) this gives me the error : "Error in amelia(x = misi, empri = 10, ords = c(3,4)) : unused argument(s) (x = list(Patient = c(1, 1, 1, 1, 1 etc... if I do > output<-amelia(x, empri=10,ords=c(3,4)) then it produces imputations *However next at zelig* > z.out <- zelig(lm(IOP~ICP+CVP+CONCORDANCE), data = output$imputations) . I am getting the error "Error in eval(expr, envir, enclos) : object "IOP" not found" I just need simple instruction how from the file I would like to impute can finish up with output at zelig! Thank you again Thomas Spentzas

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Zelig May 2009