[R] Margins to fill matrix
stefan at inizio.se
Thu Sep 11 14:13:08 CEST 2014
I have :
rs <- c(3, 2, 3, 4)
cs <- c(4, 5, 3)
[,1] [,2] [,3]
[1,] 1 2 0
[2,] 1 0 1
[3,] 1 1 1
[4,] 1 2 1
The rowSums in the above matrix is equal to sum(rs) and colSums is
equal to sum(cs). It's sort of a matrix expansion where the margins
are known beforehand...
I hope I make sense.
2014-09-11 14:09 GMT+02:00 Charles Determan Jr <deter088 at umn.edu>:
> Do you have an example of what you would like your output to look like? It
> is a little difficult to fully understand what you are looking for. You
> only have 18 values but are looking to fill at 10x8 matrix (i.e. 80 values).
> If you can clarify better we may be better able to help you.
> On Thu, Sep 11, 2014 at 3:47 AM, Stefan Petersson <stefan at inizio.se> wrote:
>> I have two vector of margins. Now I want to create "fill" matrix that
>> reflects the margins.
>> seats <- c(17,24,28,30,34,36,40,44,46,50)
>> mandates <- c(107,23,24,19,112,19,25,20)
>> Both vectors adds up to 349. So I want a 10x8 matrix with row sums
>> corresponding to "seats" and column sums corresponding to "mandates".
>> R-help at r-project.org mailing list
>> PLEASE do read the posting guide
>> and provide commented, minimal, self-contained, reproducible code.
> Dr. Charles Determan, PhD
> Integrated Biosciences
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