Hi Together,
I have a problem with the plyr package - more precisely with the ddply
function - and would be very grateful for any help. I hope the example
here is precise enough for someone to identify the problem. Basically,
in this step I want to identify observations that are identical in
On 4/25/2011 10:19 AM, Christoph Jäckel wrote:
Hi Together,
I have a problem with the plyr package - more precisely with the ddply
function - and would be very grateful for any help. I hope the example
here is precise enough for someone to identify the problem. Basically,
in this step I want to
On 2011-04-25 10:19, Christoph Jäckel wrote:
Hi Together,
I have a problem with the plyr package - more precisely with the ddply
function - and would be very grateful for any help. I hope the example
here is precise enough for someone to identify the problem. Basically,
in this step I want to
Bill Dunlap
Spotfire, TIBCO Software
wdunlap tibco.com
-Original Message-
From: r-help-boun...@r-project.org
[mailto:r-help-boun...@r-project.org] On Behalf Of Brian Diggs
Sent: Monday, April 25, 2011 11:05 AM
To: christoph.jaec...@wi.tum.de
Cc: r-help@r-project.org
Subject:
On 4/25/2011 11:55 AM, William Dunlap wrote:
Bill Dunlap
Spotfire, TIBCO Software
wdunlap tibco.com
-Original Message-
From: r-help-boun...@r-project.org
[mailto:r-help-boun...@r-project.org] On Behalf Of Brian Diggs
Sent: Monday, April 25, 2011 11:05 AM
To:
If you need plyr for other tasks you ought to use a different
class for your date data (or wait until plyr can deal with
POSIXlt objects).
How do you get POSIXlt objects into a data frame?
df - data.frame(x = as.POSIXlt(as.Date(c(2008-01-01
str(df)
'data.frame': 1 obs. of 1 variable:
Hi together,
thank you so much for your help! The problem was indeed the
strptime-function. Replacing that with as.Date solves the problem,
both in the example I provided and in my actual data set.
I think this is a lesson for me to not use types I'm not really
familiar with (POSIXlt in this
On 4/25/2011 1:07 PM, Hadley Wickham wrote:
If you need plyr for other tasks you ought to use a different
class for your date data (or wait until plyr can deal with
POSIXlt objects).
How do you get POSIXlt objects into a data frame?
df- data.frame(x = as.POSIXlt(as.Date(c(2008-01-01
On 2011-04-25 13:07, Hadley Wickham wrote:
If you need plyr for other tasks you ought to use a different
class for your date data (or wait until plyr can deal with
POSIXlt objects).
How do you get POSIXlt objects into a data frame?
df- data.frame(x = as.POSIXlt(as.Date(c(2008-01-01
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