Dear friends
There is a list of arrays comprising different no of rows and columns even
sometimes NULL, such as [[2]] given below. How can we ignore [[2]] or others
like this in the complete list. Any help in this regard is needed. Thanks
[[1]]
[,1] [,2]
[1,] 3 1
[2,] 3 1
[3,] 3 1
[[2]]
NULL
[[3]]
[,1] [,2] [,3] [,4] [,5] [,6] [,7]
[1,] 3 1 0 0 0 0 0
[2,] 3 1 0 0 0 0 0
[3,] 3 1 0 0 0 0 0
[4,] 3 1 3 1 3 2 1
[5,] 3 1 3 1 3 2 1
[6,] 3 1 3 1 3 2 0
[[4]]
[,1] [,2] [,3] [,4]
[1,] 3 0 0 0
[2,] 3 1 3 3
[3,] 3 1 3 3
[4,] 3 1 3 0
OR
x1=c(1,2,3); x2=c(1,2,3,4,6); x3=c(); x=list(x1,x2,x3)
M.Azam
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