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...u> Maintainer: Jasjeet Singh Sekhon <jasjeet_sekhon at harvard.edu> Description: overdispersed multinomial regression using robust (LQD and tanh) estimation Depends: R (>= 1.7.0), rgenoud (>= 1.22), MASS (>= 7.1-8), mvtnorm (>= 0.6-3) License: GPL version 2 or later URL: http://jsekhon.fas.harvard.edu/robust/ We look forward to receiving questions, comments and suggestions. Cheers, Jas. ====================================== Jasjeet S. Sekhon Associate Professor Harvard University Center for Basic Research in the Social Sciences jsekhon at fas.harvard.edu http://jsekhon.fa...

...u> Maintainer: Jasjeet Singh Sekhon <jasjeet_sekhon at harvard.edu> Description: overdispersed multinomial regression using robust (LQD and tanh) estimation Depends: R (>= 1.7.0), rgenoud (>= 1.22), MASS (>= 7.1-8), mvtnorm (>= 0.6-3) License: GPL version 2 or later URL: http://jsekhon.fas.harvard.edu/robust/ We look forward to receiving questions, comments and suggestions. Cheers, Jas. ====================================== Jasjeet S. Sekhon Associate Professor Harvard University Center for Basic Research in the Social Sciences jsekhon at fas.harvard.edu http://jsekhon.fa...

...s been obtained by the matching procedure. These tests can also be used to determine if an experiment or quasi-experiment is balanced on baseline covariates. The functions provide valid standard errors and allow one to estimate various estimands. For documentation and further details see: http://jsekhon.fas.harvard.edu/matching Cheers, Jas. ====================================== Jasjeet S. Sekhon Associate Professor Harvard University Center for Basic Research in the Social Sciences jasjeet_sekhon at harvard.edu http://jsekhon.fas.harvard.edu/ Office: 617.496.2426 Fax: 617.507.5524 _________...

...s been obtained by the matching procedure. These tests can also be used to determine if an experiment or quasi-experiment is balanced on baseline covariates. The functions provide valid standard errors and allow one to estimate various estimands. For documentation and further details see: http://jsekhon.fas.harvard.edu/matching Cheers, Jas. ====================================== Jasjeet S. Sekhon Associate Professor Harvard University Center for Basic Research in the Social Sciences jasjeet_sekhon at harvard.edu http://jsekhon.fas.harvard.edu/ Office: 617.496.2426 Fax: 617.507.5524 _________...

Dear R-help: Has anyone tried using R on the the AMD Opteron in either 64- or 32-bit mode? If so, any good/bad experiences, comments, etc? We are considering getting this hardware, and would like to know if R can run smoothly on such a beast. Any comment much appreciated. Best, Andy Andy Liaw, PhD Biometrics Research PO Box 2000, RY33-300 Merck Research Labs Rahway, NJ

I would like to limit the significant figures of the calibrated parameters determined by genoud() in the Rgenoud package. Below is some example output, where column 1 is model run number, columns 2-7 are the parameter values, and columns 8-12 are model fit statistics. I would like genoud to internally limit parameters to 4 decimal places as shown in this output. It is clear that the function is

...ave an important > (at least for me) question: How is R compared > to the new version of Splus 5.0 (for unix including Linux)? > > I must pay particular atention to the efficiency > with large datasets and, more generally speaking, > to the efficiency with memory management. jsekhon at fas.harvard.edu 1. I've found Splus 5.1 for LINUX to have far worse memory management than Splus 3.x. There are several key memory bugs listed in the release notes. One being that Splus doesn't recover memory well (at all?) in for loops. 2. I've found R to be much faster than 5.1 i...