[R] sapply question

From: Afshartous, David <afshart_at_exchange.sba.miami.edu>
Date: Thu 29 Jun 2006 - 00:06:34 EST


sent this to the list yesterday but didn't see it listed in the daily summary ... apologies if you receive it twice ...


From: Afshartous, David
Sent: Tuesday, June 27, 2006 10:02 AM
To: 'r-help@stat.math.ethz.ch'
Subject: sapply question

All:  

I'm trying to use sapply to break up data within another function. (tapply doens't seem to work since I want to access several variables of a
data set, not just break up a single variable according to a factor.) I tried the R documentation but that wasn't much help on this.  

The first function in the attached file works, breaking up the data according to patient number (6
observations per 24 patients) via a for loop i=1,..24.  

The second function is an attempt to use sapply instead of the first "for loop".
it doesn't load properly and I seem to be absolutely blind as to why; my guess is that
it's something "obvious". any help appreciated. (necessary data attached)  

thanks!
dave  

ps:
I'm on windows and,
r.2 =100 (input to function)
dat = comp.CAND.frm (attached file)

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