Displaying 2 results from an estimated 2 matches for "rperm".
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eperm
2009 Aug 22
3
Help on comparing two matrices
Hi,
I need to compare two matrices with each other. If you can get one of
them out of the other one by resorting the rows and/or the columns, then
both of them are equal, otherwise they're not. A matrix could look like
this:
[,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8]
[1,] 0 1 1 1 0 1 1 0
[2,] 1 1 0 0 0 1 0 1
[3,] 1 0 1 0 0
2010 Mar 12
6
Randomly sampling subsets of dataframe variable
Fellow R users,
I am stumped on what would seem to be something fairly simple.
I have a dataframe that has a variable named 'WEEK' that takes
the numbers 1:26 (26 week time-period) with each number repeated
five times consecutively (once for each weekday, Monday through
Friday). Ex. 111112222233333.....2626262626. I would like to
randomly extract two weekdays per five day week for