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 [EMAIL
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 seen
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 the
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,
Keith Schnakenberg keith.schnakenberg at 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
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)
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
?unique
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,
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
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 (in
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
--- 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 f.harrell at
vanderbilt.edu writes:
Estimates from this
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
[[alternative HTML version deleted]]
__
R-help@r-project.org
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
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 1.49472214344206
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 programming.
I
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 -1.13288279283289
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
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
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,
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
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
eric lee ericlee100 at 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?
-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 Harding)
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 marks?
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
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. My
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. Whenever I
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.wide
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
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
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
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) {
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
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
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
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
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!
[[alternative HTML version deleted]]
__
R-help@r-project.org mailing list
-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
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!
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)
but what I
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
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
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.
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 an
45 matches
Mail list logo
