Entering edit mode
Javier Pérez Florido
▴
840
@javier-perez-florido-3121
Last seen 6.1 years ago
Dear list,
For R version 2.13.0, I had no problems running the following code
(CMA
package was used to load golub data, but detach afterwards trying to
isolate the problem):
library(CMA)
data(golub)
detach(package:CMA)
library(e1071)
golubY <- golub[,1]
golubX <- as.matrix(golub[,-1])
ratio <- 2/3
golubY2 <- as.factor(golubY)
levels(golubY2) <- 1:nlevels(golubY2)
golubY2<-as.numeric(golubY2)-1
set.seed(777)
learnind <- sample(length(golubY), size=floor(ratio*length(golubY)))
Xtrain=golubX[learnind,]
Ytrain=as.factor(golubY2[learnind])
svm.model <-
svm(x=Xtrain,y=Ytrain,seed=set.seed(321),cost=1,kernel="linear",type="
C-classification")
However, for R version 2.14.2 and running the same code, R was closed
by
Windows because a problem in svm function. Here is the session info:
R version 2.14.2 (2012-02-29)
Platform: x86_64-pc-mingw32/x64 (64-bit)
locale:
[1] LC_COLLATE=Spanish_Spain.1252 LC_CTYPE=Spanish_Spain.1252
[3] LC_MONETARY=Spanish_Spain.1252 LC_NUMERIC=C
[5] LC_TIME=Spanish_Spain.1252
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] e1071_1.6 class_7.3-3 Biobase_2.14.0
loaded via a namespace (and not attached):
[1] CMA_1.12.0 tools_2.14.2
%%%%%%%%%%%%%%
I've tried in Linux O.S. too, obtaining the following error:
*** caught segfault ***
address (nil), cause 'memory not mapped'
Traceback:
1: .C("svmtrain", as.double(if (sparse) x at ra else t(x)),
as.integer(nr), as
.integer(ncol(x)), as.double(y), as.integer(if (sparse) x at ia else
0), as.int
eger(if (sparse) x at ja else 0), as.integer(type),
as.integer(kernel),
as.inte
ger(degree), as.double(gamma), as.double(coef0), as.double(cost),
as.double(
nu), as.integer(weightlabels), as.double(class.weights),
as.integer(length(c
lass.weights)), as.double(cachesize), as.double(tolerance),
as.double(epsilo
n), as.integer(shrinking), as.integer(cross), as.integer(sparse),
as.integer
(probability), as.integer(seed), nclasses = integer(1), nr =
integer(1),
index = integer(nr), labels = integer(nclass), nSV =
integer(nclass), rho =
double(nclass * (nclass - 1)/2), coefs = double(nr * (nclass
-
1)), sig
ma = double(1), probA = double(nclass * (nclass - 1)/2), probB
=
double(
nclass * (nclass - 1)/2), cresults = double(cross), ctotal1 =
double(1), cto
tal2 = double(1), error = err, PACKAGE = "e1071")
2: svm.default(x = Xtrain, y = Ytrain, seed = set.seed(321), cost =
1, kern
el = "linear", type = "C-classification")
3: svm(x = Xtrain, y = Ytrain, seed = set.seed(321), cost = 1,
kernel
= "linear
", type = "C-classification")
Possible actions:
1: abort (with core dump, if enabled)
2: normal R exit
3: exit R without saving workspace
4: exit R saving workspace
Selection:
R version 2.14.2 (2012-02-29)
Platform: x86_64-unknown-linux-gnu (64-bit)
locale:
[1] LC_CTYPE=en_US.iso885915 LC_NUMERIC=C
[3] LC_TIME=en_US.iso885915 LC_COLLATE=en_US.iso885915
[5] LC_MONETARY=en_US.iso885915 LC_MESSAGES=en_US.iso885915
[7] LC_PAPER=C LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.iso885915 LC_IDENTIFICATION=C
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] e1071_1.6 class_7.3-3 Biobase_2.14.0
loaded via a namespace (and not attached):
[1] CMA_1.12.0 tools_2.14.2
Thanks,
Javier
