Displaying 1 result from an estimated 1 matches for "tp2320193p2320219".
2010 Aug 10
4
matrix problem
Hi,
I have a file like this:
1 2 0.1
2 3 0.2
3 1 0.3
And I want to read it to create a matrix like this:
[,1] [,2] [,3]
[1,] 0 0.1 0
[2,] 0 0 0.2
[3,] 0.3 0 0
How can I do it efficiently? Thanks.
--
Best,
Zhenjiang
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