[R] Error during working with wgcna and R

[deeksha.malhan]

Hi 
I am working on co-expression analysis of rice dataset with the help of
wgcna and R but now I am  at one point which is showing error as shown below
:


 dissTOM = 1-TOMsimilarityFromExpr(datExpr, power = 8);
Error: cannot allocate vector of size 2.8 Gb
In addition: Warning messages:
1: In matrix(0, nGenes, nGenes) :
  Reached total allocation of 2550Mb: see help(memory.size)
2: In matrix(0, nGenes, nGenes) :
  Reached total allocation of 2550Mb: see help(memory.size)
3: In matrix(0, nGenes, nGenes) :
  Reached total allocation of 2550Mb: see help(memory.size)
4: In matrix(0, nGenes, nGenes) :
  Reached total allocation of 2550Mb: see help(memory.size)

Help me to resolve this problem

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