[BioC] globaltest - multinomial model

[Hans-Ulrich Klein]

Hi List,

I get a warning message whenever I use the function globaltest with a 
multinomial model. Below is a code example taken from the vignette 
leading to the warning message:
Warning message:
$ operator not defined for this S4 class, returning NULL in: fit$iter

Should I be concerned about the warning message?

Regards,
Hans-Ulrich



 > library(globaltest)
 > library(golubEsets)
 > library(vsn)
 > data(Golub_Merge)
 > Golub <- Golub_Merge[, 1:34]
 > exprs(Golub) <- exprs(vsn2(Golub_Merge[, 1:34]))

 > globaltest(Golub, "Source")
Global Test result:
Data: 34 samples with 7129 genes; 1 gene set
Model: multinomial
Method: Asymptotic distribution

    Genes Tested Statistic Q Expected Q sd of Q    P-value
all  7129   7129      23.126         10  1.9632 2.5091e-05
Warning message:
$ operator not defined for this S4 class, returning NULL in: fit$iter


 > sessionInfo()
R version 2.5.0 (2007-04-23)
x86_64-unknown-linux-gnu

locale:
C

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

other attached packages:
       vsn      limma       affy     affyio golubEsets globaltest   
multtest
   "2.2.0"   "2.10.0"   "1.14.2"    "1.4.1"    "1.4.3"    "4.6.0"   
"1.16.1"
  survival    Biobase
    "2.32"   "1.14.1"