[R] rob var/cov + LAD regression

2006-02-08 Thread Angelo Secchi
Hi, after looking around I was not able to get info about these two questions: 1. Is there a function to have a jackknifed corrected var/cov estimate (as described in MacKinnon and White 1985) in a standard OLS regression? 2. Does R possess a LAD (Least Absolute Deviation) regression

Re: [R] rob var/cov + LAD regression

2006-02-08 Thread Berton Gunter
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Angelo Secchi Sent: Wednesday, February 08, 2006 8:23 AM To: r-help@stat.math.ethz.ch Subject: [R] rob var/cov + LAD regression Hi, after looking around I was not able to get info about

Re: [R] rob var/cov + LAD regression

2006-02-08 Thread Kjetil Brinchmann Halvorsen
Angelo Secchi wrote: Hi, after looking around I was not able to get info about these two questions: 1. Is there a function to have a jackknifed corrected var/cov estimate (as described in MacKinnon and White 1985) in a standard OLS regression? Not sure, but look at package sandwich

Re: [R] rob var/cov + LAD regression

2006-02-08 Thread roger koenker
On Feb 8, 2006, at 10:22 AM, Angelo Secchi wrote: 1. Is there a function to have a jackknifed corrected var/cov estimate (as described in MacKinnon and White 1985) in a standard OLS regression? package: sandwich 2. Does R possess a LAD (Least Absolute Deviation) regression