[R] What this message means? (spatstat)

[CT YU]

Hi all,
When I use the function envelope(???,pcf,i=???,j=???), there are some errors
as followings:
Error: cannot allocate vector of size 5.3 Mb
In addition: Warning messages:
1: In vector("double", length) :
  Reached total allocation of 502Mb: see help(memory.size)
2: In vector("double", length) :
  Reached total allocation of 502Mb: see help(memory.size)
3: In vector("double", length) :
  Reached total allocation of 502Mb: see help(memory.size)
4: In vector("double", length) :
  Reached total allocation of 502Mb: see help(memory.size)


Thanks.

Ct YU
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