Last point ...
On Wed, Apr 7, 2010 at 6:39 PM, Stuart Andrews wrote:
>
> Ahhh, I see my error, thanks to Steve and others who mailed me off list.
>
> Perhaps reading a little too quickly, I mis-interpreted the help for ddply,
> in particular, the second argument:
>
>> ".variables: variables
Ahhh, I see my error, thanks to Steve and others who mailed me off list.
Perhaps reading a little too quickly, I mis-interpreted the help for
ddply, in particular, the second argument:
>".variables: variables to split data frame by, as quoted variables, a
>formula or characte
Howdy,
I'm no plyr master, but here's my 2 cents ...
On Wed, Apr 7, 2010 at 5:15 PM, Stuart Andrews wrote:
> Hi,
>
> I am confused by results from:
>
>> ddply(aa, names(aa), colwise(sum))
>
> I thought ddply was just calling colwise(sum)() with each column. However
> ddply() returns a 13 x 5 r
Hi,
I am confused by results from:
> ddply(aa, names(aa), colwise(sum))
I thought ddply was just calling colwise(sum)() with each column.
However ddply() returns a 13 x 5 result !!
The general result I expected is similar to that of apply() , or
using colwise(sum)() alone. Shouldn
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