...@imail.org
801.408.8111
*From:* utkarshsinghal [mailto:utkarsh.sing...@global-analytics.com]
*Sent:* Wednesday, July 08, 2009 2:24 AM
*To:* Greg Snow
*Cc:* Thomas Lumley; r help
*Subject:* Re: [R] bigglm() results different from glm()+Another question
Hi Greg,
Many thanks for your
Lumley; r help
*Subject:* Re: [R] bigglm() results different from glm()+Another question
Trust me, it is the same total data I am using, even the chunksizes
are all equal. I also crosschecked by manually creating the chunks and
updating as in example given on biglm help page.
?biglm
Healthcare
greg.s...@imail.orgmailto:greg.s...@imail.org
801.408.8111
From: utkarshsinghal [mailto:utkarsh.sing...@global-analytics.com]
Sent: Monday, July 06, 2009 8:58 AM
To: Thomas Lumley; Greg Snow
Cc: r help
Subject: Re: [R] bigglm() results different from glm()+Another question
The AIC of the biglm
801.408.8111
*From:* utkarshsinghal [mailto:utkarsh.sing...@global-analytics.com]
*Sent:* Monday, July 06, 2009 8:58 AM
*To:* Thomas Lumley; Greg Snow
*Cc:* r help
*Subject:* Re: [R] bigglm() results different from glm()+Another question
The AIC of the biglm models is highly dependent
.
Statistical Data Center
Intermountain Healthcare
greg.s...@imail.org
801.408.8111
From: utkarshsinghal [mailto:utkarsh.sing...@global-analytics.com]
Sent: Tuesday, July 07, 2009 12:10 AM
To: Greg Snow
Cc: Thomas Lumley; r help
Subject: Re: [R] bigglm() results different from glm()+Another question
Trust
The AIC of the biglm models is highly dependent on the size of chunks
selected (example provided below). This I can somehow expect because the
model error will increase with the number of chunks.
It will be helpful if you can provide your opinion for comparing
different models in such cases:
Intermountain Healthcare
greg.s...@imail.org
801.408.8111
From: utkarshsinghal [mailto:utkarsh.sing...@global-analytics.com]
Sent: Monday, July 06, 2009 8:58 AM
To: Thomas Lumley; Greg Snow
Cc: r help
Subject: Re: [R] bigglm() results different from glm()+Another question
The AIC of the biglm models
7 matches
Mail list logo