Date: Thu, 12 Feb 2009 14:05:44 -0800
From: spec...@stat.berkeley.edu
To: pisican...@hotmail.com
CC: christos.hat...@nuverabio.com; r-help@r-project.org; markle...@verizon.net
Subject: Re: [R] Aggregrate function
Monica -
Here's a more compact version of the same idea:
do.call(rbind
Hi,
I have to recognize that i don't fully understand the aggregate function, but i
think it should help me with what i want to do.
xveg is a data.frame with location, species, and total for the species. Each
location is repeated, once for every species present at that location. For each
Dear Monica,
Try this
xveg[with(xveg, tot %in% tapply(tot,loc,max)),]
HTH,
Jorge
On Thu, Feb 12, 2009 at 1:58 PM, Monica Pisica pisican...@hotmail.comwrote:
Hi,
I have to recognize that i don't fully understand the aggregate function,
but i think it should help me with what i want to
-Original Message-
From: r-help-boun...@r-project.org
[mailto:r-help-boun...@r-project.org] On Behalf Of Monica Pisica
Sent: Thursday, February 12, 2009 1:58 PM
To: R help project
Subject: [R] Aggregrate function
Hi,
I have to recognize that i don't fully understand the
aggregate
$sp[maxindices],collapse=,),tot=max(.df$tot))
})
result - do.call(rbind,temp)
print(result)
Thanks so much again,
Monica
From: christos.hat...@nuverabio.com
To: pisican...@hotmail.com; r-help@r-project.org
Subject: RE: [R] Aggregrate function
Date: Thu, 12 Feb 2009 15:56:38 -0500
I
-Original Message-
From: Monica Pisica [mailto:pisican...@hotmail.com]
Sent: Thursday, February 12, 2009 4:35 PM
To: christos.hat...@nuverabio.com; R help project;
markle...@verizon.net
Subject: RE: [R] Aggregrate function
Hi,
Thanks for the solution. Mark Leeds sent me privately
,
Monica
From: christos.hat...@nuverabio.com
To: pisican...@hotmail.com; r-help@r-project.org
Subject: RE: [R] Aggregrate function
Date: Thu, 12 Feb 2009 15:56:38 -0500
I don't have an easy solution with aggregate, because the function in
aggregate needs to return a scalar.
But the following
: Thursday, February 12, 2009 1:58 PM
To: R help project
Subject: [R] Aggregrate function
Hi,
I have to recognize that i don't fully understand the
aggregate function, but i think it should help me with what i
want to do.
xveg is a data.frame with location, species, and total
b 68
-Christos
-Original Message-
From: r-help-boun...@r-project.org
[mailto:r-help-boun...@r-project.org] On Behalf Of Monica Pisica
Sent: Thursday, February 12, 2009 1:58 PM
To: R help project
Subject: [R] Aggregrate function
Hi,
I have to recognize that i don't fully
: Thursday, February 12, 2009 1:58 PM
To: R help project
Subject: [R] Aggregrate function
Hi,
I have to recognize that i don't fully understand the
aggregate function, but i think it should help me with what i
want to do.
xveg is a data.frame with location, species, and total
-help-boun...@r-project.org] On Behalf Of Monica Pisica
Sent: Thursday, February 12, 2009 1:58 PM
To: R help project
Subject: [R] Aggregrate function
Hi,
I have to recognize that i don't fully understand the
aggregate function, but i think it should help me with what i
want to do.
xveg
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