two minor bugs in rowsum()

Hi,

On Fri, 25 Mar 2011, William Dunlap wrote:

[...]

(The name rowsum is a metabug, since it may be confused
with the entirely different rowSums, but it has been around
for a long time.)

A lot longer than rowSums ...

Another problem with the current naming is the inconsistent use of
the row/col prefixes, IMO:

 > x <- matrix(runif(100), ncol=5)
 > rowsum(x, rep(1, 20))
       [,1]     [,2]    [,3]     [,4]     [,5]
1 11.13374 10.50038 10.0258 11.04087 8.150401
 > colSums(x)
[1] 11.133738 10.500381 10.025805 11.040867  8.150401

and the fact that the See Also section points to rowSums and not
colSums, which adds to the confusion...

Cheers,
H.

Bill Dunlap
Spotfire, TIBCO Software
wdunlap tibco.com

Herv? Pag?s

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