On 22/10/2009, at 11:16 AM, Erin Hodgess wrote:

Dear R People:

Suppose I have the following output:

table(xx)
xx
 A  C  G  T
13 12 10 15


I would like to have the output sorted in descending order by "height"
or frequency.

But when I do the following:

rev(table(xx))
xx
 T  G  C  A
15 10 12 13


the output is sorted by the names rather than the frequency.

Any suggestions, please?

(a) Why on earth are you using ***rev()***???

(b) Does this do what you want?

    > tx <- table(xx)
    > tx[order(tx)]
    xx
    G  C  A  T
    10 12 13 15

        cheers,

                Rolf


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