Absolutely, even though the seed means the random number sequence starts in
the same place, the sequence generated will certainly drift in different
directions on different precision machines.
--
Information (and analysis) is power, and I am all about Power to the People.
[[alternative
-project.org; Ridgeway, Greg
| Sent: Fri Feb 25 22:16:02 2011
| Subject: Re: [R] Reproducibility issue in gbm (32 vs 64 bit)
|
| Hi Axel,
|
| I do not have a nice explanation why the results differ off the top of
| my head. I can say I can replicate what you get on 32/64 (both
| Windows 7) bit
Subject: Re: [R] Reproducibility issue in gbm (32 vs 64 bit)
Hi Axel,
I do not have a nice explanation why the results differ off the top of
my head. I can say I can replicate what you get on 32/64 (both
Windows 7) bit with the development version of R and gbm_1.6-3.1.
Here is an even simpler example
ideas?
Greg
- Original Message -
From: Joshua Wiley jwiley.ps...@gmail.com
To: Axel Urbiz axel.ur...@gmail.com
Cc: R-help@r-project.org R-help@r-project.org; Ridgeway, Greg
Sent: Fri Feb 25 22:16:02 2011
Subject: Re: [R] Reproducibility issue in gbm (32 vs 64 bit)
Hi Axel,
I do not have
Dear List,
The gbm package on Win 7 produces different results for the
relative importance of input variables in R 32-bit relative to R 64-bit. Any
idea why? Any idea which one is correct?
Based on this example, it looks like the relative importance of 2 perfectly
correlated predictors is
Hi Axel,
I do not have a nice explanation why the results differ off the top of
my head. I can say I can replicate what you get on 32/64 (both
Windows 7) bit with the development version of R and gbm_1.6-3.1.
Here is an even simpler example that shows the difference:
gbmfit - gbm(1:50 ~
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