Re: [R] Using t tests

2011-07-10 Thread Mike Marchywka
( after getting confirmation of lack of posts try again, LOL ) > From: marchy...@hotmail.com > To: r-help@r-project.org > Subject: RE: [R] Using t tests > Date: Sun, 10 Jul 2011 10:13:51 -0400 > > > ( sorry if this is a repost but I

Re: [R] Using t tests

2011-07-09 Thread Jim Lemon
On 07/08/2011 07:22 PM, gwanme...@aol.com wrote: Dear Sir, I am doing some work on a population of patients. About half of them are admitted into hospital with albumin levels less than 33. The other half have albumin levels greater than 33, so I stratify them into 2 groups, x and y respectively.

Re: [R] Using t tests

2011-07-08 Thread Marc Schwartz
Behalf Of gwanme...@aol.com > Sent: Friday, July 08, 2011 3:23 AM > To: r-help@r-project.org > Subject: [R] Using t tests > > Dear Sir, > > I am doing some work on a population of patients. About half of them are > admitted into hospital with albumin levels less than 33.

Re: [R] Using t tests

2011-07-08 Thread Greg Snow
look at survival analysis. -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of gwanme...@aol.com Sent: Friday, July 08, 2011 3:23 AM To: r-help@r-project.org Subject: [R] Using t tests Dear Sir, I am doing some work on a population of

[R] Using t tests

2011-07-08 Thread Gwanmesia
Dear Sir, I am doing some work on a population of patients. About half of them are admitted into hospital with albumin levels less than 33. The other half have albumin levels greater than 33, so I stratify them into 2 groups, x and y respectively. I suspect that the average length of stay