[R] sorting by the row names

Richard.Cotton at hsl.gov.uk Richard.Cotton at hsl.gov.uk
Thu Aug 21 17:52:14 CEST 2008


> is it possible to sort a file by the row names?

I presume you mean a data frame rather than a file.  In which case the 
answer is yes:

df <- data.frame(a=1:10, b=rnorm(10), row.names=sample(letters[1:10]))
df[order(rownames(df)),]

Regards,
Richie.

Mathematical Sciences Unit
HSL

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