[R] Rmixmod Memory Leak

[Jim Lemon]

Hi Dario,
The maintainer of that package is:

Benjamin Auder

and I have copied him on this message. Usually it is best to include 
the maintainer in this sort of situation.

Jim

On Fri, 1 Aug 2014 01:00:21 AM Dario Strbenac wrote:
> Hello,
> 
> I would like to provide a helpful bug report to the maintainer of 
Rmixmod,
> but I'm not skilled in memory profiling.
> 
> The following example illustrates the problem :
> 
> library(Rmixmod)
> genes <- matrix(rnorm(5000*50, 9, 2), nrow = 5000, ncol = 50)
> selected <- sample(5000, 25)
> columns <- split(1:50, rep(1:10, each = 5))
> lapply(1:100, function(index) # 100 resamples with replacement
> {
>   lapply(1:5, function(fold) # 5-fold cross validation
>   {
>     apply(genes[selected, columns[[fold]]], 1, function(aGene)
> mixmodCluster(aGene, nbCluster = 1:3)) return(NULL)
>   })
> })
> 
> Even though no data was assigned to any variables, even if I do gc() 
after
> the loop, 5 GB of RAM is used. This makes the software unusable in 
a loop,
> because the server freezes when it runs out of RAM.
> 
> May someone who is an expert help me ?
> 
> --------------------------------------
> Dario Strbenac
> PhD Student
> University of Sydney
> Camperdown NSW 2050
> Australia
> 
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