Dear R users,
I'd like to make 4 by 7 matrices as many as possible with natural numbers 1
through 28 such that each matrix have different elements of each column.
For example,
simply here is one
a1 - matrix(1:28, 4,7)
a1
[,1] [,2] [,3] [,4] [,5] [,6] [,7]
[1,]159 13 17
On Dec 11, 2014, at 4:38 PM, Kathryn Lord wrote:
Dear R users,
I'd like to make 4 by 7 matrices as many as possible with natural numbers 1
through 28 such that each matrix have different elements of each column.
I was tempted to respond:
We're very sorry. The Soduko Challenge Contest was
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