Hello R mailing list
We are trying to use R and Sweave, running as a web service on a server
to prepare statistical reports but are having problems with our
anti-virus software apparently prohibiting execution due to what we
think is Sweave trying to run an executable in one of the system's
tempo
Hi Zubin.
The first thing is to send us a link to the schema that the
other application expects. That would give us a "one-to-one"
mapping; otherwise, data.frame to arbitrary XML is to vague.
Currently, there is nothing in the XML package that would
be able to take an XML schema and write a
At the risk of my also spending time in the "Inferno", I would
suggest your problem resembles principal components analysis or
factor analysis. In this, you would look for a set of linear
transforms of your variables that have a smaller dimensionality, but
nearly the same spanned subspace.
Be
Hi,
I have a vector or random variables and I'm estimating the density using
"bkde" function in the KernSmooth package. The out put contains two vectors
(x and y), and the R documentation calls y as the density estimates, but my
y-values are not exact density etstimates (since these are numbers l
Wow. I had no idea. I was told to be wary ... But nothing this bold.
I appreciate your straight forward advice.
I will be exploring the R packages: rpart, earth, and gbm. Dr Elith has
generously provided me with literature and R support in the boosted
regression tree arena. I will leave s
Try:
plot(x,y,type='s')
lines(x,y, type='h')
On Sun, Sep 28, 2008 at 10:02 PM, Jörg Groß <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I want to plot a binomial propability distribution.
>
> I know how to generate the data;
>
> x <- seq(from=0, to=14, by=1)
> y <- dbinom(x, 14, 0.7, log = FALSE)
>
> b
yourData$B[yourData$A == someValue]
On Sun, Sep 28, 2008 at 10:25 PM, caocheng曹成 <[EMAIL PROTECTED]> wrote:
> I have a data.frame datas which have two columns A and B.
> I want to filter column A by some values and to get a value list which
> contain the value in B.
> Best wishes!
>
>[[alt
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
> Of caocheng??
> Sent: Sunday, September 28, 2008 7:26 PM
> To: R-help@r-project.org
> Subject: [R] does there any function like sumif in excel?
>
> I have a data.frame datas which have two columns A and B.
I have a data.frame datas which have two columns A and B.
I want to filter column A by some values and to get a value list which
contain the value in B.
Best wishes!
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Darin Brooks wrote:
I certainly appreciate your comments, Bert. It is abundantly clear that I
won't be invited to any of the cocktail parties hosted by the "polite
circles". I am not a statistician. I am merely a geographer (in the field
of ecology) trying to develop a predictor to assist in a
In need of exporting an XML file from R, I scrub some data in R and push
the data into another application requiring XML. The data set is a very
straightforward data frame of stock prices- see below. I know the
package XML is the one to use, but need an example or some direction on
where to s
Hi,
I want to plot a binomial propability distribution.
I know how to generate the data;
x <- seq(from=0, to=14, by=1)
y <- dbinom(x, 14, 0.7, log = FALSE)
but what I don't know is how to plot this within a histogram like plot.
Because the histogram function only accepts one variable.
Is
I certainly appreciate your comments, Bert. It is abundantly clear that I
won't be invited to any of the cocktail parties hosted by the "polite
circles". I am not a statistician. I am merely a geographer (in the field
of ecology) trying to develop a predictor to assist in a forestry-based
decisi
Dear Ying-Chao
If you have only one-dimensional, I understand that you can reduce your data
on a XY list.
Taking it in account, how about you use "gam" package/function?
require(gam)
x<- seq(from=-5, to=5, by=0.2)
y<-sin(x)+runif(length(x))+x/2
plot(y~x)
# k is the kernel size
for(k in 3:8) {
sm
In need of exporting an XML file from R, I scrub some data in R and push
the data into another application requiring XML. The data set is a very
straightforward data frame of stock prices- see below. I know the
package XML is the one to use, but need an example or some direction on
where to s
On Sun, Sep 28, 2008 at 6:45 PM, Keith Schnakenberg
<[EMAIL PROTECTED]> wrote:
> I am trying to use the reshape package for the first time. I have two waves
> of a survey, so the id variables include a subject identification number and
> a variable denoting the wave of the survey.
>
> I used the fo
The Inferno awaits me -- but I cannot resist a comment (but DO look at
Frank's website).
There is a deep and disconcerting dissonance here. Scientists are
(naturally) interested in getting at mechanisms, and so want to know which
of the variables "count" and which do not. But statistical analysis
I am trying to use the reshape package for the first time. I have two
waves of a survey, so the id variables include a subject
identification number and a variable denoting the wave of the survey.
I used the following arguments:
library(reshape)
svy.melt <- melt(svy, id=c("id", "WAVE"))
svy.
"Rainer M Krug" <[EMAIL PROTECTED]> writes:
> Hi
>
> I am trying to utilize my dual core processor (and later a
> High-performance clusters (HPC) ) by using the Rmpi, snow, snowfall,
> ... packages, but I am struggling at the beginning, i.e. to initialise
> the "cluster" on my dual core computer.
Read for meaning:
http://cran.r-project.org/web/packages/dse/index.html
On Sep 27, 2008, at 5:26 PM, <[EMAIL PROTECTED]> <[EMAIL PROTECTED]
> wrote:
I am sorry where is the download page or index?
Once I know that it is split out like this library(dse1) and
library(dse2) work just fine.
On Sun, 28 Sep 2008, J?rg Gro? wrote:
Hi,
I tried to calculate the formula for the birthday problem
(the probability that at least two people out of a group of n people share
the same birthday)
But the factorial-function allows me only to calculate factorials up to 170.
You might want to
To anyone who can help me:
I found that the function "smooth.ppp" in the package "spatstat" provides
the kernel estimate for the intensity function of a "two-dimensional" point
process with marks.
Does anyone know that which package can do this for simply a "one-
dimensional" point process with m
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
> Of [EMAIL PROTECTED]
> Sent: Sunday, September 28, 2008 11:35 AM
> To: [EMAIL PROTECTED]
> Cc: r-help@r-project.org; Uwe Ligges
> Subject: Re: [R] birthday problem (factorial limit)
>
> Quoting "(Ted Hardi
eric lee gmail.com> writes:
>
> Hello,
>
> I'm trying to use tapply to find group means in a function. It works
> outside of a function, but I get the error message from the following code:
> "Error in tapply(index, cluster, mean) : arguments must have same length."
> Any suggestions? Thanks.
eric lee wrote:
Hello,
I'm trying to use tapply to find group means in a function. It works
outside of a function, but I get the error message from the following code:
"Error in tapply(index, cluster, mean) : arguments must have same length."
Any suggestions? Thanks.
This is neither caused
Hi,
I am just writing a draft to introduce confidence intervals of various
"effect sizes" to my students. Surely, I'll recommend the package
MBESS in R. Currently, it means I have to recommend R's interface at
first. As a statistics teacher in a dept of psychology, I often have
to reply why not
Hello,
I'm trying to use tapply to find group means in a function. It works
outside of a function, but I get the error message from the following code:
"Error in tapply(index, cluster, mean) : arguments must have same length."
Any suggestions? Thanks.
eric
d <- data.frame(cbind(cluster=1:2, va
Dear R fans ( and wiki fans),
I am just writing a draft to introduce confidence intervals of various
"effect sizes" to my students. Surely, I'll recommend the package
MBESS in R. Currently, it means I have to recommend R's interface at
first. As a statistics teacher in a dept of psychology, I ofte
Quoting "(Ted Harding)" <[EMAIL PROTECTED]>:
> On 28-Sep-08 17:51:55, Uwe Ligges wrote:
> > Jörg Groß wrote:
> >> Hi,
> >> I tried to calculate the formula for the birthday problem
> >> (the probability that at least two people out of a group of
> >> n people share the same birthday)
> >>
> >> But
Confirmed. Anyway, please report bugs to the package maintainer (CCing),
who would probably be happy about a suggestion to fix the bug.
Best wishes,
Uwe Ligges
Ye, Bin wrote:
Hi, Everyone,
I just installed R-2.7.2 on my computer and then installed package RWeka, version 0.3-13. I noticed t
On 28-Sep-08 17:51:55, Uwe Ligges wrote:
> Jörg Groß wrote:
>> Hi,
>> I tried to calculate the formula for the birthday problem
>> (the probability that at least two people out of a group of
>> n people share the same birthday)
>>
>> But the factorial-function allows me only to calculate
>> factor
Let me repeat an important topic from the the posting guide: it would be
helpful for us to see a toy example, i.e. code to generate data for x.
Best wishes,
Uwe Ligges
Josh B wrote:
Hello R list subscribers,
I am trying to use the "by" command to create line-specific variance covariance mat
Given you do not want to touch the randomForest implementation itself,
the answer is "no, there is no particular function to do it in package
randomForest. More particular:
?randomForest tells us that a value "importance" is returned that is `a
matrix with nclass + 2 (for classification) or tw
Jörg Groß wrote:
Hi,
I tried to calculate the formula for the birthday problem
(the probability that at least two people out of a group of n people
share the same birthday)
But the factorial-function allows me only to calculate factorials up to
170.
So is there a way to push that limit?
Hi,
I tried to calculate the formula for the birthday problem
(the probability that at least two people out of a group of n people
share the same birthday)
But the factorial-function allows me only to calculate factorials up
to 170.
So is there a way to push that limit?
to solve this fo
ram basnet wrote:
I have very large data set. I want to make subset of data based on the matching. For example,
x
[1] "a" "b" "c" "f"
yy
"a" "-0.761988113636315" "-0.117672628171555" "-0.885641151614679"
"b" "-1.13288279
On Sun, Sep 28, 2008 at 12:55 PM, June Kim <[EMAIL PROTECTED]> wrote:
> Thanks for the reply, but RCurl looks like an interface to curl, which
> might be useful but it's not what I'm looking for. I am looking for a
> text to learn R.
I also had the same problem, I am new to R but not to programmin
I have very large data set. I want to make subset of data based on the
matching. For example,
> x
[1] "a" "b" "c" "f"
> yy
"a" "-0.761988113636315" "-0.117672628171555" "-0.885641151614679"
"b" "-1.13288279283289" "1.4947221
Richard,
> How do I change the size of the text on the legend scale?
This should work with `fontsize', but doesn't which is a bug (fixed in
the next release).
> Also, is there a way to change all the font sizes at once?
Not yet, but this is a good suggestion.
Thanks
David
_
Dear All,
Please can anyone help me with codes for performing running mean for my 3-D/4-D
gridded (Spatial ) data sets( x,y,t, and x,y,z, t, respectively).
Thank you,
Isaac
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--- On Sat, 9/27/08, Dieter Menne <[EMAIL PROTECTED]> wrote:
> From: Dieter Menne <[EMAIL PROTECTED]>
> Subject: Re: [R] FW: logistic regression
> To: [EMAIL PROTECTED]
> Received: Saturday, September 27, 2008, 5:45 PM
> Frank E Harrell Jr
> vanderbilt.edu> writes:
>
> > Estimates from this mod
Try str(svy) and see what formats the seperate variables have. It may give you
a clue as to what is happening.
An alternative approach is to see if the reshape package can help you.
See See http://had.co.nz/reshape for more information on the package.
--- On Sat, 9/27/08, Keith Schnakenber
> This is a summary of discussions between Shengqiao Li and me,
> entered here as a reference for future requests on knn regression
> or missing value imputation based on a nearest neighbor approach.
There several functions that can be used for 'nearest neighbor'
classification such as knn, knn1 (
Dear Yihui,
Yes, that's right. The reason that I missed it is that I checked a model
that had been fit without a weights argument, that doesn't work even for an
"lm" object (but does for a "multinom" object, produced by multinom() in the
nnet package, which is what threw me off).
Thank you very m
Kimberly Sheldon wrote:
Hello R-helpers.
We have a question about AIC values. We ran several different GLMs (quadratic,
interactions) and our lowest AIC values were the same for several different
models. We don't know how to interpret this. Any thoughts? Thanks in advance.
Well, the
On Saturday, 27 September 2008, 15:30 (UTC+0200), Bastian Offermann wrote:
> Hello all,
>
> one brief question
>
> I would like to remove double/triple elements from a vector, e.g.
>
> 0 1 1 1 1 2 2 2 4 5 6 6
>
> but keep one of these multiple ones. Should look like this finally:
>
> 0 1 2 4 5 6
david8373 wrote:
Hi guys,
I'm new to R and this might be a basic question. I want to have a plot with
a table right under it containing all the data in the plot. Is that possible
in R? How do to it?
Hi Yuhan,
Try this:
library(plotrix)
par(mfrow=c(2,1))
x<-rnorm(10)
y<-rnorm(10)
plot(x,y)
Keith Schnakenberg gmail.com> writes:
> library(foreign)
> svy <- read.spss("studsur4.SAV")
>
> svy.wide <- reshape(svy, timevar="WAVE", idvar="id", direction="wide")
>
> "id" is the student identification number, and "WAVE" takes values 1
> and 2. I get the following error:
>
> Error in da
Barry Rowlingson wrote:
2008/9/28 June Kim <[EMAIL PROTECTED]>:
Hello,
What is the best material(book, pdfs, ...) for programmers, who have
extensive experience in other programming languages, to learn R
programming? I think there are many materials on how to use R for
specific statistical jobs
Dear R Users/Experts,
I am using a function called logitreg() originally described in MASS (the
book 4th Ed.) by Venebles & Ripley, p445. I used the code as provided but
made couple of changes to run a 'constrained' logistic regression, I set the
method = "L-BFGS-B", set lower/upper values for th
2008/9/28 June Kim <[EMAIL PROTECTED]>:
> Hello,
>
> What is the best material(book, pdfs, ...) for programmers, who have
> extensive experience in other programming languages, to learn R
> programming? I think there are many materials on how to use R for
> specific statistical jobs, but I haven't
Thanks for the reply, but RCurl looks like an interface to curl, which
might be useful but it's not what I'm looking for. I am looking for a
text to learn R.
2008/9/28 Ajay ohri <[EMAIL PROTECTED]>:
> someone mentioned the RCurl package recently
>
> On Sun, Sep 28, 2008 at 9:12 AM, June Kim <[EMAI
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