]
Sent: Friday, September 20, 2013 5:12 PM
To: E Joffe
Cc: r-help@r-project.org
Subject: Re: [R] Creating dummy vars with contrasts - why does the returned
identity matrix contain all levels (and not n-1 levels) ?
On Sep 13, 2013, at 11:21 PM, E Joffe wrote:
Hi David,
First I ordered the levels
] Creating dummy vars with contrasts - why does the
returned identity matrix contain all levels (and not n-1 levels) ?
On Sep 13, 2013, at 4:15 AM, E Joffe wrote:
Hello,
I have a problem with creating an identity matrix for glmnet by
using
the contrasts function.
Why do you want to do this?
I
Hello,
I have a problem with creating an identity matrix for glmnet by using the
contrasts function.
I have a factor with 4 levels.
When I create dummy variables I think there should be n-1 variables (in this
case 3) - so that the contrasts would be against the baseline level.
This is
On Sep 13, 2013, at 4:15 AM, E Joffe wrote:
Hello,
I have a problem with creating an identity matrix for glmnet by
using the
contrasts function.
Why do you want to do this?
I have a factor with 4 levels.
When I create dummy variables I think there should be n-1 variables
(in this
- Health Science Center in Houston
832.287.0829 (c)
-Original Message-
From: David Winsemius [mailto:dwinsem...@comcast.net]
Sent: Friday, September 13, 2013 3:05 PM
To: E Joffe
Cc: r-help@r-project.org
Subject: Re: [R] Creating dummy vars with contrasts - why does the returned
identity matrix
, 2013 3:05 PM
To: E Joffe
Cc: r-help@r-project.org
Subject: Re: [R] Creating dummy vars with contrasts - why does the
returned
identity matrix contain all levels (and not n-1 levels) ?
On Sep 13, 2013, at 4:15 AM, E Joffe wrote:
Hello,
I have a problem with creating an identity matrix
Center in Houston
832.287.0829 (c)
-Original Message-
From: David Winsemius [mailto:dwinsem...@comcast.net]
Sent: Friday, September 13, 2013 3:05 PM
To: E Joffe
Cc: r-help@r-project.org
Subject: Re: [R] Creating dummy vars with contrasts - why does the
returned
identity matrix contain
Message-
From: David Winsemius [mailto:dwinsem...@comcast.net]
Sent: Friday, September 13, 2013 8:51 PM
To: E Joffe
Cc: r-help@r-project.org
Subject: Re: [R] Creating dummy vars with contrasts - why does the returned
identity matrix contain all levels (and not n-1 levels) ?
On Sep 13, 2013, at 9:33
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