Convert a matrix to a 1 dimensional array

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Either read it in with ‘scan’, or just do as.vector() on the matrix. You might want to transpose the matrix first if you want it by rows or columns. 

> m=matrix(1:12,3,4)
> m
     [,1] [,2] [,3] [,4]
[1,]    1    4    7   10
[2,]    2    5    8   11
[3,]    3    6    9   12
> as.vector(m)
 [1]  1  2  3  4  5  6  7  8  9 10 11 12
> as.vector(t(m))
 [1]  1  4  7 10  2  5  8 11  3  6  9 12

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