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jason@portlandoregon.gov
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On
Behalf Of Tim Howard
Sent: Friday, November 01, 2013 7:49 AM
To: r-h
All,
I've used the excellent package, spsurvey, to create spatially balanced samples
many times in the past. I'm now attempting to use the analysis portion of the
package, which compares CDFs among sub-populations to test for differences in
sub-population metrics.
- My data (count data) have
)
y <- list.files(pattern = ".zip")
install.packages(pkgs = y, repos = NULL, lib =
"C:/pathToLocationWhereWritesAreAllowed")
#now manually copy the folders to the R installation and overwrite the existing
ones.
Tim
>>>>>>>>>>>>>>>>>
Dat
All,
I work in a building where our computers are running Windows XP with
Cisco Security Agent (CSA) activated, locking many automated actions,
especially file writes. We (lowly staff) are allowed to install
software, so on upgrading to R 3.0.2, I tried the standard approach for
updating my package
Yes! This does this trick. Thank You!
Tim
>>> peter dalgaard 1/26/2013 11:49 AM >>>
On Jan 26, 2013, at 16:32 , Tim Howard wrote:
> Duncan,
> Good point - I guess I am expecting too much. I'll work on a global replace
> before import or chopping with str
ction=showCaseDownloadForm
(see off-airport AEA 2005 for a csv with issues.)
Thank you for the help. I really do appreciate the suggested solutions.
Also, thanks to John Kane for the link to csvEdit.
Tim
>>> Duncan Murdoch 01/25/13 6:37 PM >>>
On 13-01-25 4:37 PM, Tim Howard wrote:
> Da
x27;s the case, I'd think there would be a solution
within read.csv() ... or perhaps scan()?, I just can't figure it out.
best,
Tim
>>> David Winsemius 1/25/2013 4:16 PM >>>
On Jan 25, 2013, at 11:35 AM, Tim Howard wrote:
> Great point, your fix (quote="
nd* quotes with the escape character within
a single string.
Tim
>>> David Winsemius 1/25/2013 2:27 PM >>>
On Jan 25, 2013, at 10:42 AM, Tim Howard wrote:
> All,
>
> I have some csv files I am trying to import. I am finding that quotes inside
> strings are e
C=C
[5] LC_TIME=English_United States.1252
attached base packages:
[1] stats graphics grDevices utils datasets methods base
>>> Tim Howard 1/25/2013 1:42 PM >>>
All,
I have some csv files I am trying to import. I am finding that quotes inside
str
All,
I have some csv files I am trying to import. I am finding that quotes inside
strings are escaped in a way R doesn't expect for csv files. The problem only
seems to rear its ugly head when there are an uneven number of internal quotes.
I'll try to recreate the problem:
# set up a matrix,
Jessica,
In terms of initializing your list for populating it in a later step, I think
this partially gets at your question -- it removes the upper loop assignment,
but then does require a loop to get the second level. Perhaps there's something
here you can work with ...
height<-c("high","lo
Answering my own question.
?sample (!)
y <- by(x, x$TrSeasYr, function(x) mean(sample(x[,1], size=999, replace =
TRUE)))
>>> Tim Howard 10/13/2011 9:42 AM >>>
All -
I have an uneven set of replicates and would like to sample from this set X
number of times to gen
All -
I have an uneven set of replicates and would like to sample from this set X
number of times to generate a mean for each grouping variable. I was thinking
the boot package would be the thing to use, but now I'm not so sure ... given
the discussion here:
http://finzi.psych.upenn.edu/Rhel
t;fig", "banana"))
> y[ , names(my.factor.defs)] <- lapply(names(my.factor.defs), function(x) {
+y[[x]] <- factor(y[[x]] , levels=
my.factor.defs[[x]])})
> str(y)
'data.frame': 3 obs. of 3 variables:
$ colOne : Factor w/ 6 levels "1",
All,
Given a data frame and a list containing factor definitions for certain
columns, how can I apply those definitions from the list, rather than doing it
the standard way, as noted below. I'm lost in the world of do.call, assign,
paste, and can't find my way through. For example:
#set up d
one = data.frame(x = c(1,2,3), y = c(1,2,2), z = c(3,1,1)),
two = data.frame(x = c(2,5,2), y = c(2,3,1), z = c(4,1,2))
)
Reduce("+", DF.lis) / length(DF.lis)
I hope it helps.
Best,
Dimitris
On 11/24/2010 8:37 PM, Tim Howard wrote:
> R users,
> This probably involves a s
*y+3))
}
#show the list
> x
$one
a b c
1 1 2 3
2 2 3 4
3 3 4 5
$two
a b c
1 4 5 9
2 8 6 10
3 12 7 11
#the result should be
a b c
1 2.5 3.5 6
2 5 4.5 7
3 7.5 5.5 8
Can anyone direct me down the right path?
Thanks in advance
Tim Howard
[[alternative HTML version dele
then use the 'names' of the imp data frame to be absolutely clear to RF you
are talking about the same variables
for(i in length(sel.imp){
partialPlot(sel.rf,xdata,names(sel.imp[i]),which.class=1,xlab=vars[i],main="")
}
Hope that helps.
Tim Howard
>>>>
Coll,
An alternative approach is to do that subsetting yourself before sending it to
RF and treat each group as an external validation group, as follows:
- extract Site A, build a RF model (Model 1) on sites B and C
- validate this model by running a predict on site A using the model, use ROCR
o
Got it.
Thanks again so much for the help.
Best,
Tim
>>> hadley wickham 3/10/2010 2:46 PM >>>
> By Q2 I was trying to refer to the Y-axis labels. For the polar plot, the
> Y-axis labels reside left of the panel. I was looking for a way to get the
> Y-axis labels to radiate out from the cente
ou can also use scale_y_sqrt().
Hadley
On Wed, Mar 10, 2010 at 2:05 PM, Tim Howard wrote:
> To answer two of my own questions to get them into the archives (I am slowly
> getting the hang of ggplot):
>
> Q1. use "opts(axis.text.x = theme_text(size=xx))" to change f
geom_bar(width=1) +
opts(axis.text.x =
theme_text(size = 18))
smp2 + coord_polar()
Cheers,
Tim
>>> Tim Howard 3/9/2010 9:25 AM >>>
Dear R gurus -
consider this plot:
library(ggplot2)
dat <- sample(1:8,100,replace=TRUE)
smp <- ggp
size of each slice, which makes for a different presentation than ggplot2. Any
suggestions on how to use this calculation method in the ggplot framework?
Thanks in advance for your help.
Tim Howard
New York Natural Heritage Program
__
R-help@r-projec
Tobias
On Thu, Sep 24, 2009 at 3:09 PM, Tim Howard wrote:
> All,
> I'm trying again with a slightly more generic version of my first question.
> I can extract the
> plotted values from hist(), boxplot(), and even plot.randomForest(). Observe:
>
> # get some data
> da
ll see
if
I can get in there and tweak it.
Thanks to both of you for the help.
Tim
>>> David Winsemius 9/24/2009 9:43 AM >>>
On Sep 24, 2009, at 9:09 AM, Tim Howard wrote:
> All,
> I'm trying again with a slightly more generic version of my first
> questio
avid Winsemius 9/24/2009 9:25 AM >>>
On Sep 24, 2009, at 9:09 AM, Tim Howard wrote:
> All,
> I'm trying again with a slightly more generic version of my first
> question. I can extract the
> plotted values from hist(), boxplot(), and even plot.randomForest().
> Ob
n't use this method in ROCR
library(ROCR)
data(ROCR.xval)
RCdat <- plot(perf, avg="threshold")
RCdat
## output: NULL
Does anyone have any tricks for piping or extracting these data?
Or, perhaps for steering me in another direction?
Thanks,
Tim
From: "Tim Howard"
Sub
st entry with only two values
p...@x.values[[1]] <- c(0,1)
p...@y.values[[1]] <- c(0,1)
p...@alpha.values[[1]] <- c(Inf,0)
plot(perf, avg="threshold")
##output results in an error with this message
# Error in if (from == to) rep.int(from, length.out) else as.vector(c(from, :
#
; phi <- xx[1]
> size <- xx[2]
> munb <- xx[3]
> -sum(dzinb(x=x,phi=phi, size=size, munb=munb,log=TRUE))
>}
>
> solut <- optim(fn=fncZiNB,par=c(0.09, 72, 0.7),x=x,method =
>"L-BFGS-B", lower=c(1e-10,1e-10,1e-10),upper=c(1-1e-10,Inf,Inf),
>con
b=72, size=0.7),method =
> "L-BFGS-B", hessian=TRUE)
Error in dnbinom(x = x, size = size, prob = prob, log = log.arg) :
argument "size" is missing, with no default
I have the same problem with dnbinom.
I'm sure I'm doing something obvious any suggestions?
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