[R] Summarize by two or more attributes
ROLL Josh F
JRoll at lcog.org
Tue May 17 22:11:06 CEST 2011
I will take a look. In my real data I need to interpolate the 16 points into 64 points for each of the categories.
Thanks Marc
JR
-----Original Message-----
From: Marc Schwartz [mailto:marc_schwartz at me.com]
Sent: Tuesday, May 17, 2011 1:09 PM
To: ROLL Josh F
Cc: r-help at r-project.org
Subject: Re: [R] Summarize by two or more attributes
On May 17, 2011, at 2:55 PM, ROLL Josh F wrote:
> Marc,
> How could I also apply the spline function to each of the 'columns' found in the result from
>
> tapply(Df$Rate,list(Df$Bin,Df$Type),sum)
>
> ??
Something along the lines of the following:
apply(tapply(Df$Rate,list(Df$Bin,Df$Type),sum), 2, spline)
If I am understanding what you want to do.
Depending upon what you are trying to do, you may want to look at the other functions listed in the See Also in ?spline.
HTH,
Marc
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