The code bekow works so this is why I didn't include the data to
reproduce it. The loops about 500
times and each time, a zoo object with 1400 rows and 4 columns gets
created. ( the rows represent minutes so each file is one day
worth of data). Inside the loop, I keep rbinding the newly created
/Varadhan.html
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Leeds, Mark (IED)
Sent: Friday, December 08, 2006 4:17 PM
To: r-help@stat.math.ethz.ch
Subject: [R] any way to make
Subject: RE: [R] any way to make the code more efficient ?
Using rbind almost always slows things down significantly. You should
define the objects aggfxdata and fullaggfxdata before the loop and
then assign appropriate values to the corresponding rows and/or columns.
Ravi
Save your intermediate results as a list of matrices.
Then rbind them all at once using do.call.
It looks like this will save 23 seconds (see below), if you are running on
a PC like mine (AMD 2GHz, WinXP ).
But I wonder, if 23 a mere seconds is all you save is this really worth
worrying
-help@stat.math.ethz.ch
Subject: RE: [R] any way to make the code more efficient ?
Using rbind almost always slows things down significantly.
You should
define the objects aggfxdata and fullaggfxdata before the loop and
then assign appropriate values to the corresponding rows
? Thanks.
-Original Message-
From: Ravi Varadhan [mailto:[EMAIL PROTECTED]
Sent: Friday, December 08, 2006 5:21 PM
To: Leeds, Mark (IED); r-help@stat.math.ethz.ch
Subject: RE: [R] any way to make the code more efficient ?
Using rbind almost always slows things down significantly. You
