Row And Column Names In A Matrix

Question

[deschisandy]

I have the matrix in the following form:

                 A-B  A-C  A-D  A-E B-C B-D B-E C-D C-E D-E

    GENE 1
    GENE 2
    GENE 3
    GENE 4

and would like to create an empty matrix template of the following form as a list:

   [[GENE 1]]

              A  B  C  D  E 
          A
          B
          C
          D
          E  

   [[GENE 2]]

            A  B  C  D  E 
          A
          B
          C
          D
          E  

   [[GENE 3]]

            A  B  C  D  E 
          A
          B
          C
          D
          E  

      [[GENE 4]]

            A  B  C  D  E 
          A
          B
          C
          D
          E

This is for a large dataset and hence has to be automated. The number of rows and columns in the original matrix is much higher than this. This is only a subset of the data.

[zx8754]

Maybe I am missing something, but is it not better to create this list variable as you populate it?

[deschisandy]

Oh yes that should be fine. I just would like to know how to do it for one empty matrix template

Answer 1

[zx8754]

Try this:

x <- array(0, dim=c(2,3,4))
x
#output
, , 1

     [,1] [,2] [,3]
[1,]    0    0    0
[2,]    0    0    0

, , 2

     [,1] [,2] [,3]
[1,]    0    0    0
[2,]    0    0    0

, , 3

     [,1] [,2] [,3]
[1,]    0    0    0
[2,]    0    0    0

, , 4

     [,1] [,2] [,3]
[1,]    0    0    0
[2,]    0    0    0