Do you mean sort by the *names* of a *vector* alphabetically? (tot is a
vector)? In which case tot[sort.list(names(tot))]
If you want to sort new.matrix by its *colnames* of new.matrix,
new.matrix[, sort.list(colnames(new.matrix))]
See 'An Introduction to R' for the ideas involved, and the help pages of
sort() and order().
On Sat, 18 Oct 2008, Bob Green wrote:
Hello,
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,
Bob
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)
sort(tot)
unavail unwilling wheels
1 1 1
evans interviewed jill
1 1 1
referral achieved aids
--
Brian D. Ripley, [EMAIL PROTECTED]
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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