[R] sorting matrix output alphabetically

Bob Green bgreen at dyson.brisnet.org.au
Sat Oct 18 11:59:05 CEST 2008


I have been using the TM package to create a TermDocMatrix, which I 
have saved as a matrix so that I can view word frequencies.  Below is 
a section of the code that I have used and an excerpt of the output: 
What I wanted to be able to do is to view the output alphabetically - 
rather than the results being sorted by frequency as below, that an 
alphabetical list would be generated. This would be quite long as the 
matrix is 176 x 2796, so I was hoping I could save the output in a 
csv file, which could be manipulated either in R or EXCEL.

Any advice as to how I could do this is appreciated,


rec.matrix <- TermDocMatrix(recdata)
recdata.matrix <- findFreqTerms(rec.matrix, 5, Inf)

# creates a matrix
new.matrix <- as(Data(rec.matrix), "matrix")
tot <- colSums(new.matrix)

                unavail            unwilling               wheels
                    1                    1                    1
                evans          interviewed                 jill
                    1                    1                    1
             referral             achieved                 aids

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