[R] could not find function in mempry inside foreach loop

cheng huimin huimincheng2015 at gmail.com
Wed Apr 13 06:58:50 CEST 2016

I'm trying to use foreach function to do multicore computing in R.

Error in FUN(train_adjmt, iter = missedmat[i, 1], iter2 = missedmat[i,  :
  task 1 failed - "找不到对象'predictMatrix'"

then I call function A in the console. The problem is I'm calling a
function Posdef inside B that is defined in another script file which I
source. I had to put predictMatrix in the list of export argument of foreach
: .export=c("predictMatrix"). However I get the following error:

Warning message:
In e$fun(obj, substitute(ex), parent.frame(), e$data) :
  already exporting variable(s): predictMatrix

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