A user contacted me directly about this, I answered with my best understanding of the
recent R-help discussion of the issue, and their response to my response shows that I'm
not quite right.
I am emphatically not an MS Windows user so am asking for help -- which I will cut/paste
to this user and to the next dozen who will invariably contact me directly.
Thanks,
Terry Therneau
-------- Forwarded Message --------
Subject: RE: survival package
Date: Wed, 26 Apr 2017 18:05:30 +0000
From: sesh...@mskcc.org
To: Therneau, Terry M., Ph.D. <thern...@mayo.edu>
Thank you for the quick response. The session info command for v3.4.0 does in fact report
survival_2.41-3. Furthermore, while both v3.3.1 and v3.40 are on the same computer the
library paths do not have any directory in common:
.libPaths()
[1] "C:/Program Files/R/R-3.4.0/library"
and
.libPaths()
[1] "C:/Program Files/R/R-3.3.1/library"
Thanks,
Venkat
-----Original Message-----
From: Therneau, Terry M., Ph.D. [mailto:thern...@mayo.edu] Sent: Wednesday, April 26, 2017
1:42 PM
To: Seshan, Venkatraman E./Epidemiology-Biostatistics
Subject: Re: survival package
This has been discussed in R-help by multiple people. You have a pre-3.4 version of the
survival package somewhere on your search path, and the method for resolving .C calls has
changed. The sessionInfo command should report survival version 2.41-3.
Terry T.
On 04/26/2017 12:17 PM, sesh...@mskcc.org wrote:
Dear Prof. Therneau,
I am encountering an error message when I try to use the coxfit6 routine from
the survival package under the 3.4.0 version of R. The minimal function and the
script are in the attached file. This function worked under earlier versions of
R.
----------------------------------------------------------------------
-------------------------
***************************
** Works under R-3.3.1 **
***************************
source("coxfit6-issue.R")
[1] -0.4838181
sessionInfo()
R version 3.3.1 (2016-06-21)
Platform: x86_64-w64-mingw32/x64 (64-bit) Running under: Windows 7 x64
(build 7601) Service Pack 1
locale:
[1] LC_COLLATE=English_United States.1252 [2] LC_CTYPE=English_United
States.1252 [3] LC_MONETARY=English_United States.1252 [4]
LC_NUMERIC=C [5] LC_TIME=English_United States.1252
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] survival_2.39-4
loaded via a namespace (and not attached):
[1] Matrix_1.2-6 splines_3.3.1 grid_3.3.1 lattice_0.20-33
----------------------------------------------------------------------
-------------------------
***********************************
** Does not work under R-3.4.0 **
***********************************
library(survival)
source("coxfit6-issue.R")
Error in .Call("Ccoxfit6", as.integer(control$iter.max), stime,
as.integer(sstat), :
"Ccoxfit6" not available for .Call() for package "survival"
sessionInfo()
R version 3.4.0 (2017-04-21)
Platform: x86_64-w64-mingw32/x64 (64-bit) Running under: Windows 7 x64
(build 7601) Service Pack 1
Matrix products: default
locale:
[1] LC_COLLATE=English_United States.1252 [2] LC_CTYPE=English_United
States.1252 [3] LC_MONETARY=English_United States.1252 [4]
LC_NUMERIC=C [5] LC_TIME=English_United States.1252
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] survival_2.41-3
loaded via a namespace (and not attached):
[1] compiler_3.4.0 Matrix_1.2-9 splines_3.4.0 grid_3.4.0
[5] lattice_0.20-35
----------------------------------------------------------------------
-------------------------
When I remove the quotes surrounding Ccoxfit6 in the function both versions
give the error:
Error in phcoefs(stim[ii], sts[ii], as.matrix(as.double(cvt[ii])),
oo$coefficients, :
object 'Ccoxfit6' not found
I would greatly appreciate your help in resolving this.
Thanks,
Venkat Seshan
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