Hello
I have 4 1000*1000 matrix A,B,C,D. I want to use the corresponding element of
the 4 matrices. Using the "for loop" as follow:
E<-o
for (i in 1:1000)
{for (j in 1:1000)
{
E<-fisher.test(matrix(c(A[i][j],B[i][j],C[i][j],D[i][j]),2))#call
fisher.test for every element
}
}
It is so time-consuming
Need vectorization
Yours sincerely
ZhaoXing
Department of Health Statistics
West China School of Public Health
Sichuan University
No.17 Section 3, South Renmin Road
Chengdu, Sichuan 610041
P.R.China
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