On Thu, 27 Oct 2011, Rich Shepard wrote:
Nope. Can't.
Dan et al.:
I apologize for the certainty; anything can happen to data as un-intended
consequences of processing. I will write that there _should_ be no
duplicates.
What I'm going to do is re-read the data frame from the source text
On Fri, 28 Oct 2011, Rich Shepard wrote:
May not be until Monday that I return with results on this effort as I'm
going to be carfully checking and documenting each step and its results.
Dan, et al.:
Got it working properly now. Took a different approach after re-reading
the source data
This is my first excursion into using reshape2 and I want to ensure that
the melt() function call is syntactically correct.
The unmodifed data frame is organized this way:
head(tds.anal)
site sampdate param quant
1UDS-O 2006-12-06 TDS 10800
4 STC-FS 1996-06-14 Cond 280
7
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-bounces@r-
project.org] On Behalf Of Rich Shepard
Sent: Thursday, October 27, 2011 8:26 AM
To: r-help@r-project.org
Subject: [R] Syntax Check: rshape2 melt()
This is my first excursion into using reshape2
On Thu, 27 Oct 2011, Nordlund, Dan (DSHS/RDA) wrote:
What I think you want is as simple as
test.melted - melt(test)
Dan,
I see the difference this syntax makes; sampdate is the variable
associated with the value (quant) for a specific ID pair of site and param.
wanted - cast(test.melted,
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-bounces@r-
project.org] On Behalf Of Rich Shepard
Sent: Thursday, October 27, 2011 10:22 AM
To: r-help@r-project.org
Subject: Re: [R] Syntax Check: rshape2 melt()
On Thu, 27 Oct 2011, Nordlund, Dan (DSHS/RDA
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-bounces@r-
project.org] On Behalf Of Nordlund, Dan (DSHS/RDA)
Sent: Thursday, October 27, 2011 10:47 AM
To: r-help@r-project.org
Subject: Re: [R] Syntax Check: rshape2 melt()
-Original Message-
From: r
On Thu, 27 Oct 2011, Nordlund, Dan (DSHS/RDA) wrote:
I should apologize. I saw rshape2 and just glossed over that and read
rshape.
Dan,
Apparently the 'e' in the subject line fell off. It's 'reshape2'.
So I was using the rshape package rather than rshape2. I don't know the
relationship
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-bounces@r-
project.org] On Behalf Of Rich Shepard
Sent: Thursday, October 27, 2011 10:56 AM
To: r-help@r-project.org
Subject: Re: [R] Syntax Check: rshape2 melt()
On Thu, 27 Oct 2011, Nordlund, Dan (DSHS/RDA
On Thu, 27 Oct 2011, Nordlund, Dan (DSHS/RDA) wrote:
You should be able to get what you want using the dcast function (I think).
test.melted - melt(tds.anal)
dcast(test.melted, site + sampdate ~ param)
Dan,
I don't think the data frame melted properly. I tried the dcast() but
sampdate is
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-bounces@r-
project.org] On Behalf Of Rich Shepard
Sent: Thursday, October 27, 2011 11:17 AM
To: r-help@r-project.org
Subject: Re: [R] Syntax Check: rshape2 melt()
On Thu, 27 Oct 2011, Nordlund, Dan (DSHS/RDA
On Thu, 27 Oct 2011, Nordlund, Dan (DSHS/RDA) wrote:
What I think you want is as simple as
test.melted - melt(test)
Dan, et al.:
No, it's not that simple. Unfortunately. I've tried various combinations
of id.vars, measure.vars, and variable, but just cannot get the dates to
display in the
On Thu, 27 Oct 2011, Nordlund, Dan (DSHS/RDA) wrote:
I read in the sample data that you put in an earlier post.
tds.anal - read.table('clipboard',header=TRUE)
tds.anal
site sampdate param quant
1UDS-O 2006-12-06 TDS 10800
4 STC-FS 1996-06-14 Cond 280
7UDS-O 2007-10-04
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-bounces@r-
project.org] On Behalf Of Rich Shepard
Sent: Thursday, October 27, 2011 12:00 PM
To: r-help@r-project.org
Subject: Re: [R] Syntax Check: rshape2 melt()
On Thu, 27 Oct 2011, Nordlund, Dan (DSHS/RDA
Try this, based on your small example:
tds.a - read.table(textConnection(
+ site sampdate param quant
+ 1UDS-O 2006-12-06 TDS 10800
+ 4 STC-FS 1996-06-14 Cond 280
+ 7UDS-O 2007-10-04Mg 1620
+ 9UDS-O 2007-10-04 SO4 7580
+ 19 JCM-10B 2007-06-21Ca79
+ 20
So I was using the rshape package rather than rshape2. I don't know the
relationship between those two packages and/or how they differ. I am sure
that there are others that can help you out here.
I, too, don't know how the two packages 'reshape, The Orignal' and
'reshape2, Rebooted'
On Fri, 28 Oct 2011, Hadley Wickham wrote:
See here: https://github.com/hadley/reshape
Thanks, Hadley.
Rich
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PLEASE do read the posting guide
On Thu, 27 Oct 2011, Dennis Murphy wrote:
# Define param so that all of its levels are represented:
tds.a - within(tds.a, {
param = factor(param, levels = c('TDS', 'Cond', 'Mg', 'Ca',
'Cl', 'Na', 'SO4'))
sampdate = as.Date(sampdate) } )
Dennis,
This produces an error:
On Thu, 27 Oct 2011, Rich Shepard wrote:
So I did the conversion and melting the long way:
tds.a - tds.anal
tds.a$sampdate - factor(tds.a$sampdate)
I didn't copy the melt command:
tds.anal.m - melt(tds.a)
However, ...
c.tds.anal - dcast(tds.a, site + sampdate ~ param, value_var =
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-bounces@r-
project.org] On Behalf Of Rich Shepard
Sent: Thursday, October 27, 2011 2:41 PM
To: r-help@r-project.org
Subject: Re: [R] Syntax Check: rshape2 melt()
On Thu, 27 Oct 2011, Dennis Murphy wrote
On Thu, 27 Oct 2011, Nordlund, Dan (DSHS/RDA) wrote:
It appears that what you did differently was to dcast the un-melted data.
In addition, you shouldn't need to turn your dates into factors. I assume
that your unaltered data is in tds.anal.
Dan,
It's been that sort of a day when that
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-bounces@r-
project.org] On Behalf Of Rich Shepard
Sent: Thursday, October 27, 2011 4:29 PM
To: r-help@r-project.org
Subject: Re: [R] Syntax Check: rshape2 melt()
On Thu, 27 Oct 2011, Nordlund, Dan (DSHS/RDA
On Thu, 27 Oct 2011, Nordlund, Dan (DSHS/RDA) wrote:
I will be leaving work shortly, and won't be able to look at this again
until tomorrow some time. However, I went back and reread the help page
on dcast. Here is part of that page.
fun.aggregate
aggregation function needed if variables do
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