[BioC] simpleaffy segmentation fault

[Sucheta Tripathy]

Dear List,

I am using simpleaffy's detection.p.val method to get the P values of my
arrays. When I set tau value 10^-1 and 10^-2, I get segmentation fault.For
Tau val ues less than 10^-3 onwards it works fine. Any pointer on this
will be very helpful.

many thanks

Sucheta

Following is my source code:
=============================
  Data <- ReadAffy(filenames=file)
  Calls <- detection.p.val(Data,tau = 1e-2, calls=FALSE,
alpha1=0.05,alpha2=0.05)


Error Message:
==============
Getting probe level data...
Computing p-values

 *** caught segfault ***
address (nil), cause 'memory not mapped'

Traceback:
 1: .C("DetectionPValue", as.double(pms[, x]), as.double(mms[, x]),    
as.chara
cter(pns), as.integer(length(mms[, x])), as.double(tau),    
as.double(sat), dpv
al = double(length(unique.pns)), length(unique.pns),     PACKAGE =
"simpleaffy")
 2: FUN(1[[1]], ...)
 3: lapply(X, FUN, ...)
 4: sapply(1:length(pms[1, ]), function(x) {    .C("DetectionPValue",
as.double(
pms[, x]), as.double(mms[,         x]), as.character(pns),
as.integer(length(mms
[, x])),         as.double(tau), as.double(sat), dpval =
double(length(unique.pn
s)),         length(unique.pns), PACKAGE = "simpleaffy")$dpval})
 5: detection.p.val(Data, tau = 0.01, calls = FALSE, alpha1 = 0.05,    
alpha2 =
 0.05)
aborting ...


Sessioninfo()
=============
R version 2.4.0 (2006-10-03)
i686-pc-linux-gnu

locale:
LC_CTYPE=en_US;LC_NUMERIC=C;LC_TIME=en_US;LC_COLLATE=C;LC_MONETARY=en_US;LC_MESS
AGES=en_US;LC_PAPER=en_US;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=e
n_US;LC_IDENTIFICATION=C

attached base packages:
[1] "splines"   "tools"     "methods"   "stats"     "graphics"  "grDevices"
[7] "utils"     "datasets"  "base"

other attached packages:
simpleaffy genefilter   survival       affy     affyio    Biobase
   "2.8.0"   "1.12.0"     "2.29"   "1.12.1"    "1.0.0"   "1.12.2"


-- 
Sucheta Tripathy, Ph.D.
Virginia Bioinformatics Institute Phase-I
Washington street.
Virginia Tech.
Blacksburg,VA 24061-0447
phone:(540)231-8138
Fax:  (540) 231-2606

web page: http://staff.vbi.vt.edu/sutripa
blog    : http://genomics-array.blogspot.com/
quick ref:
http://faculty.ucr.edu/~tgirke/Documents/R_BioCond/R_BioCondManual.html