I see now the trick... the square wave clarified it for me. It is indeed
faster than re-arranging the data if putting the zero frequency in the
middle of the data is your goal.
Since I only do that for the purposes of teaching I probably won't be
using it, but it may well be an interesting "tr
On Wed Feb 04 2015 at 5:10:02 AM John Wasige wrote:
> Hello r community,
>
> This is to request for help on how to reprojrect longitude from 0 - 360 to
> -180 - 180
> With the following script below, i get output transformed to something like
> rectangle. Is there a better way of doing it?
> ###
Hi,
I am trying to run STAR logistic/binomial model using R2BayesX . A warning
message came up every time when i included a random effect, bs='re',
(unstructured spatial effect) into the model. The warning message is : Warning
message: running command
'"C:/Users/ChongS/Documents/R/win-library/
maggy yan gmail.com> writes:
>
> I read something on http://glmm.wikidot.com/faq, under "How can I deal with
> overdispersion in GLMMs?":
>
> library(lme4) ## 1.0-4set.seed(101)
> d <- data.frame(y=rpois(1000,lambda=3),x=runif(1000),
> f=factor(sample(1:10,size=1000,replace=TRUE)))
You may be able to learn something useful from how the maptools package handles
that dependency?
---
Jeff NewmillerThe . . Go Live...
DCN:Basics: ##.#. ##.#. Live Go...
I don't think that worked as OP would like it too - all columns of the
output
are factors.
>
data.frame(rbind(as.matrix(data.frame(a=1:3,b=letters[1:3])),as.matrix(data.frame(x=1:5,b=LETTERS[1:5]
a b
1 1 a
2 2 b
3 3 c
4 1 A
5 2 B
6 3 C
7 4 D
8 5 E
> str(.Last.value)
'data.frame': 8 obs. o
Hi,
For you first task and use your first row of data as an example. Define a
function named dist to take care of the probability for each group.
> dist <- function(x)
+ {
+
return(c(rep(x[1],15),rep(x[2],15),rep(x[3],25),rep(x[4],20),rep(x[5],25)))
+ }
> plot(ecdf(dist(c(2,3,2,5.3,7.3
Hi,
The following worked.
> data.frame(rbind(as.matrix(data.frame(a=1:3,b=letters[1:3])),as.matrix(data.frame(x=1:5,b=LETTERS[1:5]
a b
1 1 a
2 2 b
3 3 c
4 1 A
5 2 B
6 3 C
7 4 D
8 5 E
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I've been trying to build the latest version of the AMBUR package and have
been having problems. I've noticed a few other packages experiencing build
issues. The error appears to be on the R-Forge related based on what I've
been researching about issues with building packages. I think it is a
li
Dear Elke; Jeff,
Re:
> Eike: Understanding Discrete Fourier Transform theory is not trivial... while
> a vignette added to the stat package has the potential help a lot of users,
> it is a bit ambitious to try to supplant the extensive published material on
> using and interpreting the DFT (p
Thx - this was exactly what I needed. Yes I also prefer the qqnorm but I
like the distrubution chart as well.
Thx !
/Mikael
On Tue, Feb 3, 2015 at 12:18 AM, peter dalgaard wrote:
>
> > On 02 Feb 2015, at 23:42 , Mikael Olai Milhøj
> wrote:
> >
> > Hi,
> >
> > I'm having trouble trying to plot
Many ways... but they all assume you know the background theory, which you
don't seem to, and which is off-topic here.
Consider reading some help files:
?summary.lm
?plot.lm
Re: regression not existing... the classic case is when your data fit your
model too perfectly... regression must have
Eike: Understanding Discrete Fourier Transform theory is not trivial...
while a vignette added to the stat package has the potential help a lot of
users, it is a bit ambitious to try to supplant the extensive published
material on using and interpreting the DFT (particularly as there is "more
t
Hello r community,
This is to request for help on how to reprojrect longitude from 0 - 360 to
-180 - 180
With the following script below, i get output transformed to something like
rectangle. Is there a better way of doing it?
### script
convert longitude from 0 - 360 to -180 - 180
library(raster)
as the title says (from an R begginer). Is it also possible that regression,
in a given data's case, just doesn't exist -- for any type of applied
regression modelling?
Thanks!
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On 03/02/2015 12:18 PM, David Winsemius wrote:
On Feb 3, 2015, at 7:14 AM, Duncan Murdoch wrote:
> On 03/02/2015 9:43 AM, keith.jew...@campdenbri.co.uk wrote:
>> Dear all,
>>
>> I am using writeWebGL to create an HTML page containing an interactive 3D plot. It works fine
with the default prefix
On 03/02/2015 11:15 AM, Keith Jewell wrote:
Thanks Duncan, your suggestions led me to a solution.
Perhaps this could be reflected in the help, but I'll leave that
decision to you.
It comes down to the template. As well as including a single line for
each scene containing
paste("%", prefix,
On Feb 3, 2015, at 7:14 AM, Duncan Murdoch wrote:
> On 03/02/2015 9:43 AM, keith.jew...@campdenbri.co.uk wrote:
>> Dear all,
>>
>> I am using writeWebGL to create an HTML page containing an interactive 3D
>> plot. It works fine with the default prefix="" but fails when I specify a
>> prefix "f
Thanks Duncan, your suggestions led me to a solution.
Perhaps this could be reflected in the help, but I'll leave that
decision to you.
It comes down to the template. As well as including a single line for
each scene containing
paste("%", prefix, "WebGL%"); e.g. %WebGL% or %AWebGL%
the ta
I know it is pretty old but it seems that nobody answer this question. I
ran into similar problem and the work around I found use the assign
function. Indeed it seems than stepAIC look for the element it needs
within the global environment. So if you define an object inside a
function, you need
I read something on http://glmm.wikidot.com/faq, under "How can I deal with
overdispersion in GLMMs?":
library(lme4) ## 1.0-4set.seed(101)
d <- data.frame(y=rpois(1000,lambda=3),x=runif(1000),
f=factor(sample(1:10,size=1000,replace=TRUE)))
m1 <- glmer(y~x+(1|f),data=d,family=poisson)
On 03/02/2015 9:43 AM, keith.jew...@campdenbri.co.uk wrote:
Dear all,
I am using writeWebGL to create an HTML page containing an interactive 3D plot. It works fine with
the default prefix="" but fails when I specify a prefix "for different scenes
displayed on the same web page" (quoting ?write
Thanks Jeff/ Henrik
Jeff - that's what I needed: so far the update seems to be painless.
Many thanks
Sun
On 03/02/15 01:45, Jeff Newmiller wrote:
I think you missed the question, Henrik, which was directed at
updating the local 3.1 library with all of the packages that were in
the 3.0 libra
Dear all,
I am using writeWebGL to create an HTML page containing an interactive 3D plot.
It works fine with the default prefix="" but fails when I specify a prefix "for
different scenes displayed on the same web page" (quoting ?writeWebGL). I'm
sure I'm misreading the help, and would apprecia
I have solved the problem. Here are the steps in case this will help
anyone.
1) I downloaded, compiled, and installed latest R sources.
2) made sure I had all of the R development libraries install through
packages manager
3) update java jkd 1.6* to java jkd 1.7*
4) ran sudo R CMD javareconf
JAVA_
Dear Frank,
thanks a lot for your reply. I was aware of the need for FFT normalization and
folding, but you're making another good point here, stating that there should be
examples on this (folding) in the documentation as it will pose quite an
obstacle for newcomers attempting to practically use
Hi RajPatil
It seems that you are using an old version of mlxLibrary.
You need to install mlxLibrary 1.1.0 from the Lixoft website
http://download.lixoft.com/?software=mlxlibrary
Marc
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Kim,
The "x" in "xerror" and "xstd" stands for cross validation. But you have
specified no cross validations, xval=0.
Try:
model <- rpart(Product ~ ., data=trainData, control=rpart.control(minsplit=50,
cp=0.002))
model$cptable
Jean
On Tue, Feb 3, 2015 at 7:09 AM, Kim C. wrote:
> Hello all,
Hello all,
I'm making a decision tree with the rpart package. I want to prune the tree and
in many tutorials it says to use cptable. Like so: opt <-
which.min(model_rpart$cptable[, "xerror"])
The problem is that when I look up model_rpart$cptable it only show the columns
CP, nsplit, rel error.
Dear all,
I am Professor at a business school and I would like to develop a course
about quantitative research using R.
My current plan is that the course should cover (a) an introduction
(assuming that students have never used R before), (b) basic econometric
analysis (e.g., regression, logit) a
Hi Lalitha,
Your description is more like calculating a composite score from the
values observed on ten attributes, which can then be ranked. Perhaps
you want to standardize the observed values to insure that the result
is not dominated by the attribute with the numerically highest
variance. For ex
> Steve Taylor
> on Tue, 3 Feb 2015 03:11:47 + writes:
> Nobody would write x=x or indeed x<-x; both are silly. If
> I found myself writing f(x=x) I might smirk at the
> coincidence, but it wouldn't bother me. I certainly
> wouldn't confuse it with assigning x to
Kevin Thorpe wrote,
"Moral of story, computers do what you tell them, not what you meant."
But hope springs eternal! Of course this aphorism explains neatly every
problem I've ever run across while using a computer. But maybe someday
they'll make a computer that undertands *me*!
Peter Dalg
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