Hi Tim,
As far as I know you can not weigh predictors (and I believe that you really
should not). You may weigh classes (and, in a sense, cases), but this is an
entirely different issue.
--- On Wed, 5/8/09, "Häring, Tim (LWF)" wrote:
> From: "Häring, Tim (LWF)"
> Subject: [R] feature weighti
you could try stringsAsFactors in the read.table function
On Aug 17, 4:19 pm, rajclinasia wrote:
> Hi everyone,
>
> After reading the external file into R it will become a R dataset. Now my
> querry is i want to dispaly only character variables from that dataset.
> please help me in this aspect.
Hi everyone,
After reading the external file into R it will become a R dataset. Now my
querry is i want to dispaly only character variables from that dataset.
please help me in this aspect. it will be very helpful for us.
Thank you in Advance.
--
View this message in context:
http://www.nabble
Patrick Connolly wrote:
On Thu, 13-Aug-2009 at 05:48PM -0700, caltechneurostudy wrote:
|>
|> Does anybody know if it's possible to have R send an email or execute an
|> additional line of code in case an error is generated from a running script?
|> I am running R on a cluster and would like to
Hi,
What do you mean by outer product?
If you have two vectors, say x and y, of lenght n and you define matrix A by
A(i,j) = x(i)*y(j) then your matrix has rank one and it is VERY singular (in
exact arithmetics).
Is this is what you mean by outer product?
--- On Sun, 16/8/09, Stephan Lindner
Just to quote explicitly the passage I mentioned in the R Data document:
Function `read.fwf' provides a simple way to read such files,
specifying a vector of field widths. The function reads the file into
memory as whole lines, splits the resulting character strings, writes
out a temporary t
coda::HPDinterval(fit,prob=0.9)
SATRAJIT ROYCHOUDHURY-2 wrote:
>
> Dear
>
> I am trying to find a 90% credible interval. I am using the following
> code.
>fit<-bugs(
>model.file=BUGScode,
>data=data,
>inits = list(geninits1,geninits2),
>parameters.to.save=keepers,
>n
I have a microsoft database that I have read in that is a list of
dataframes processed by mdb.get. I am trying to read this into GRASS
gis and need to change the labled atomic vectors to double precision-
especially the coord.x coord.y. Now is there a way to check for
classes and then change them
Gabor made a good point.
Here is an example I copied from my blog.
##
# READ FIXED-WIDTH DATA FILE WITH read.fwf() #
# -- #
# EQUIVALENT SAS CODE: #
# filename data 'E:\sas\fixed.txt';
What is the problem exactly?
Remko
-
Remko Duursma
Post-Doctoral Fellow
Centre for Plants and the Environment
University of Western Sydney
Hawkesbury Campus
Richmond NSW 2753
Dept of Biological Science
Macquarie University
North Ryde NSW 2109
Check out ?read.fwf
On Sun, Aug 16, 2009 at 4:49 PM, Ross Boylan wrote:
> Recorded here so others may avoid my mistakes.
>
> I have a bunch of files containing fixed width data. The R Data guide
> suggests that one pre-process them with a script if they are large.
> They were 50MG and up, and I n
Dear R-help community:
I have been searching for an elegant solution to the question posed in
my subject. I would like to be able to use any of the R functions like
text() or mtext() to display some text with mixed font families. For
example, a label like "huge-class background load", where the
Dear
I am trying to find a 90% credible interval. I am using the following
code.
fit<-bugs(
model.file=BUGScode,
data=data,
inits = list(geninits1,geninits2),
parameters.to.save=keepers,
n.chains=nchains,
n.iter=runs,
n.burnin=burn,
n.thin=nthin,
DIC= TRUE,
bugs.
Recorded here so others may avoid my mistakes.
I have a bunch of files containing fixed width data. The R Data guide
suggests that one pre-process them with a script if they are large.
They were 50MG and up, and I needed to process another file that gave
the layout of the lines anyway.
I tried r
On 2009.08.16 15:59:15, milton ruser wrote:
> Dear all,
>
> how can I setup R(gui) to run some commands evertime R startup?
>
> cheers
>
> milton
You'll want to read: help(Startup)
HTH,
~Jason
--
Jason W. Morgan
Graduate Student
Department of Political Science
*The Ohio State University*
154
it seems we are using the version of VGAM and R.
> packageDescription("VGAM")$Version
[1] "0.7-9"
> sessionInfo()
R version 2.9.1 (2009-06-26)
i386-pc-mingw32
locale:
LC_COLLATE=English_United States.1252;LC_CTYPE=English_United
States.1252;LC_MONETARY=English_United
States.1252;LC_NUMERIC=C;LC_T
On Sun, 2009-08-16 at 19:59 +0200, Francesco Stablum wrote:
> Hello,
> I am quite new to R, and, after having used successfully the function
> "som" (package kohonen), I am trying to use the predict.kohonen
> function for pattern recognition under noise, but cannot find further
> documentation abou
On Sun, 16-Aug-2009 at 10:40AM -0500, Peng Yu wrote:
|> Hi,
|>
|> I run the following program. I thought that 'b' was a matrix. But it
|> is actually not, right? Can somebody elaborate more on the type
|> difference between 'b' and 'c' to help me understand it better?
|>
|> Why 'c' is what it is
Dear all,
how can I setup R(gui) to run some commands evertime R startup?
cheers
milton
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On Sun, 2009-08-16 at 10:48 -0700, Hongwei Dong wrote:
> I'm quite sure the VGAM package has been installed because I used it to
> estimate the model before I use summary(). One reason I can guess is that
> the default method for summary() is S3, but here it is S4. But I'm not sure
> and don't know
My apologies for the poor quality of the last post.
Query
> plot(V6,V5, col="red")
or
> plot(V6,V5)
the graph is attached.
Data
V5 V6
2063 0.009179148 -8117667.885
2064 0.03854349 -8117963.045
2065 -0.018345998 -8117980.935
2066 0.023662906 -8118013.245
206
Hi ,
I am using the plot function for some data , and the plot is coming back
pure black , with scales on the side .
Regards
Malcolm
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This seems pretty basic, but I can't get any data to work except for the
documented examples. When the goal is to get to SpatialPixels, here is what
I see...
> x <- runif(10,1,10)
> y <- runif(10,1,10)
> z <- rnorm(10,0,1)
> MyData <- as.data.frame(cbind(x,y,z))
> library(gstat)
> coordinates(My
DeaR list,
let us assume we have stored a couple of functions in 'test.R'. Is it
possible to run
R CMD BATCH "test.R"
or
R --file="test.R"
interactively and if yes how?
A better formulated question sounds like this: how can I source "test.R"
interactively OUTSIDE R?
Another clarification try:
?layout first example seems to do this unless I misunderstand the placement of
the second graph.
layout(matrix(c(1,1,0,2), 2, 2, byrow = TRUE))
plot(1:10, col="blue")
plot(1:5,col="red")
?rbind for information on it. rbind basically concatinates two rectangular
data.sets such as matrices or
Does any have installation instructions for this? When I run
install.packages('quantreg') I get:
gcc -std=gnu99 -shared -o quantreg.so akj.o boot.o brute.o chlfct.o
cholesky.o combos.o crq.o crqfnb.o dsel05.o etime.o extract.o idmin.o
iswap.o kuantile.o mcmb.o penalty.o powell.o rls.o rq0.o r
Hello,
I am quite new to R, and, after having used successfully the function
"som" (package kohonen), I am trying to use the predict.kohonen
function for pattern recognition under noise, but cannot find further
documentation about the trainY parameter.
The documentation of predict.kohonen says abo
Hi, more generally you might be overfitting your model by interacting all of
the kidc polynomials with all of the year polynomials. Have a look at the
following example:
year=rep(1:4,each=25)
year=year-mean(year)
kids=c(sample(c(0:1),25,replace=T),sample(c(0:2),25,replace=T),sample(c(0:3)
,25,repl
I'm quite sure the VGAM package has been installed because I used it to
estimate the model before I use summary(). One reason I can guess is that
the default method for summary() is S3, but here it is S4. But I'm not sure
and don't know what to do with that. Here is an example you can reproduce:
c
Hi,
Try this,
layout(matrix(c(1,1,2,3), ncol=2, byrow=T))
hist(1:10)
plot.new()# empty space
plot(1:10)
HTH,
baptiste
2009/8/16 RAVI KAPOOR :
> Hi
>
> Can any one explain how i can divide the graphic window
>
> into two rows and two columns -- allocate figure 1 all of row 1 and
> allocate fi
Hi
Can any one explain how i can divide the graphic window
into two rows and two columns -- allocate figure 1 all of row 1 and
allocate figure 2 the intersection of column 2 and row 2
Actually through above also want to understand the use of rbind() function
that is used in call to layout()
T
Hello,
On 8/16/09, Robert A LaBudde wrote:
> The "basic" interval (which you are using by default) is just the usually
> normal distribution interval with the standard error estimated from the
> resampling distribution. It has all the benefits and problems of assuming a
> normal distribution.
>
Y
The "basic" interval (which you are using by default) is just the
usually normal distribution interval with the standard error
estimated from the resampling distribution. It has all the benefits
and problems of assuming a normal distribution.
If you wish to maintain the domain limits on the co
Hi,
I run the following program. I thought that 'b' was a matrix. But it
is actually not, right? Can somebody elaborate more on the type
difference between 'b' and 'c' to help me understand it better?
Why 'c' is what it is now? Why 'c' is not the transpose of what it is now?
Regards,
Peng
$ Rsc
Dear R users,
I have a problem with multicollinearity in mixed models and I am using lmer
in package lme4. From previous mailing list, I learn of a reply
"http://www.mail-archive.com/r-h...@stat.math.ethz.ch/msg38537.html"; which
states that if not for interpretation but just for prediction,
multi
I think you're misinterpreting the context, although it is admittedly a
confusing context.
I think that what is meant by this that you should NOT use accented symbols
(or other symbols such as ß), which could be considered "alphanumeric". The
rest
of the sentence in which this note occurs expl
Hi,
When I use Rscript to run an R script, I want Rscript show the line
numbers along with the commands executed. I am wondering if there is a
way to do so.
Regards,
Peng
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Hi,
It says in R-intro.pdf, "For portable R code (including that to be
used in R packages) only A–Za–z0–9 should be used." I'm an wondering
why '_' and '.' can be used in portable R code.
It very common that some variable name should be composed of two or
more English words. Can somebody let me k
Ravi Varadhan wrote:
[cut]
It seems to work!
Thanks a lot Ravi and Berend.
Moreno.
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and pro
Liviu Andronic wrote:
Dear R users,
Does the results below make any sense? Can the the interval of the
correlation coefficient be between *-1.0185* and -0.8265 at 95%
confidence level?
Why not? You used an ordinary nonparametric bootstrap, so it doesn't
know that the parameter is constrai
Dear R users,
Does the results below make any sense? Can the the interval of the
correlation coefficient be between *-1.0185* and -0.8265 at 95%
confidence level?
Liviu
> library(boot)
> data(mtcars)
> with(mtcars, cor.test(mpg, wt, met="spearman"))
Spearman's rank correlation rho
data:
Hello All,
I'm going to select the differentially genes from my array by using SNR. There
are two
conditions:condition1:mean(group1)>mean(group2)condition2:mean(group1)https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and pr
Hi;
datamining question:
--
my input data table is of size 1000-rows, 2000-columns.
each column represents one features. one of the columns represent a categorical
features with 900 levels.
i would like to apply KNN / distance matrix on the table rows, while preserving
rig
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