IL PROTECTED]
> Sent: Thursday, October 21, 2004 9:58 AM
> To: Berton Gunter
> Cc: 'Angelo Secchi'; [EMAIL PROTECTED]
> Subject: Re: [R] Robust regression with groups
>
> Hi, Angelo:
>
> Have you plotted the data in creative ways, e.g., normal
> probabil
-Clinical Statistics
South San Francisco, CA
"The business of the statistician is to catalyze the scientific learning
process." - George E. P. Box
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Angelo Secchi
Sent: Thursday, October 21, 2004 7
rom: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Angelo Secchi
> Sent: Thursday, October 21, 2004 7:58 AM
> To: [EMAIL PROTECTED]
> Subject: Re: [R] Robust regression with groups
>
>
> Hi,
> Bert you are definitely right I've been confuse
> and
From: "Berton Gunter" <[EMAIL PROTECTED]>
> To: "'Dimitris Rizopoulos'" <[EMAIL PROTECTED]>;
> "'Angelo Secchi'" <[EMAIL PROTECTED]>
> Cc: <[EMAIL PROTECTED]>
> Sent: Wednesday, October 20, 2004 5:42
t;
Cc: <[EMAIL PROTECTED]>
Sent: Wednesday, October 20, 2004 5:42 PM
Subject: RE: [R] Robust regression with groups
Angelo and Folks:
Beware! It is not at all clear what you mean by "robust" regression.
The
sandwich estimator is often said to be "robust" to model
misspe
Box
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
> Dimitris Rizopoulos
> Sent: Wednesday, October 20, 2004 7:08 AM
> To: Angelo Secchi
> Cc: [EMAIL PROTECTED]
> Subject: Re: [R] Robust regression with groups
>
> Hi Ange
AIL PROTECTED]>
Sent: Wednesday, October 20, 2004 3:22 PM
Subject: [R] Robust regression with groups
Hi,
I have data on a group of subjects in different years. I should
assume
that observations regarding different individuals are independent
but
observations for the same individual in
Hi,
I have data on a group of subjects in different years. I should assume
that observations regarding different individuals are independent but
observations for the same individual in different years are not and I
would like to have an estimated standard error (and variance-covariance
matrix) ta
