Displaying 20 results from an estimated 69 matches for "klasterecki".
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klasterecky
2004 Jan 28
3
unstability when using isoreg() function (PR#6494)
Full_Name: Petr Klasterecky
Version: 1.8.1
OS: Windows XP, Linux
Submission from: (NULL) (195.113.27.212)
The isoreg() function causes R to crash when called repeatedly. Consider the
following simple script:
{
library(modreg)
N <- 10
x <- rnorm(N)
print("Original x values:")
print(x)
for(n in (1:N)){print(y <- isoreg(x[1:n])$yf)}
}
I am able to run (call) it several
2007 Jun 13
3
extractor rows from a matrix
hi!
i have a little problem: my data's matrix has 1093 rows and 3 columns.
i'd like to extract each rows..
something like this:
ht= my matrix
Dt=(???)=a vector with t=1,2...1093
what can i do?
thank you!
Vincenzo
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2007 Mar 05
4
0 * NA = NA
Is there any way to "force" 0 * NA to be 0 instead of NA?
For example, suppose I have a vector with some valid values, while
other values are NA. If I matrix-pre-multiply this by a weight
row vector, whose weights that correspond to the NAs are zero,
the outcome will still be NA:
x <- c(1, NA, 1)
wt <- c(2, 0, 1)
wt %*% x # NA
Alberto Monteiro
2007 May 16
3
Filled step-function?
Hello,
I'd like to generate a filled step-function in R as you can see in the
attachement (image is generated by grapher, but I need a freely
available alternative). The problem is, that I don't know, how to fill
it up. My code right now looks like this:
pH <- c(0,6.1,6.1,6.3,6.6,7.3,0)
Tiefe <- c(0,0,10,40,80,120,10)
plot(pH,Tiefe,type="s",main="Tiefenfunktion
2007 Apr 16
3
session log
Hi,
is there a platform independent way to log a complete R session (input +
output + warnings + errors + ???) into a text file? I can use sink(file,
split=T) and savehistory() but it is quite cumbersome to merge the files
and still there is some loss (eg. warnings).
I wondered that I only found this thread from 2003(!) related to this topic:
2007 May 18
0
Fwd: Re: Goodness-of-fit test for gamma distribution?
Thanks Petr. Comments below:
At 03:40 PM 18/05/2007, Petr Klasterecky wrote:
>Sean Connolly napsal(a):
>>Hi all,
>>I am wondering if anyone has written (or knows of) a function that
>>will conduct a goodness-of-fit test for a gamma distribution. I am
>>especially interested in test statistics have some asymptotic
>>parametric distribution that is independent
2007 Feb 23
1
optim(method="L-BFGS-B") abnormal termination
Hi,
my call of optim() with the L-BFGS-B method ended with the following
error message: ERROR: ABNORMAL_TERMINATION_IN_LNSRCH
Further tracing shows:
Line search cannot locate an adequate point after 20 function and
gradient evaluations
final value 0.086627
stopped after 7 iterations
Could someone pls tell me whether it is possible to increase the limit
of 20 evaluations? Is it even worth
2007 Feb 27
5
Multiple conditional without if
Dear all,
i am stuck with a syntax problem.
i have a matrix which has about 500 rows and 6 columns.
now i want to kick some data out.
i want create a new matrix which is basically the old one except for all
entries which have a 4 in the 5 column AND a 1 in the 6th column.
i tried the following but couldnĀ“t get a new matrix, just some wierd
errors:
2007 Apr 23
5
Changing working directory
Good morning,
I keep copies my .RData file in different directories for different projects on Windows XP. There is an icon on my desktop for each project so all I have to do is click on the icon to open R for a specific project, i.e. a specific .RData file. How do I change to another .RData file from within R without first closing R?
Thanks,
Walt Paczkowski
2007 Apr 04
0
to findout maximized log likelihoods by using rlarg.fit (for several r order statistics)
Dear R helpers,
I need to find out maximized log likelihoods,
parameters estimates and standard errors (in
parentheses) of r largest-order statistics model, with
different values of r by using the function rlarg.fit.
I want to specify required number of order statistics
to the model. I attached my data file with this
mail.please help me.
Ruposh
--- r-help-request at stat.math.ethz.ch wrote:
2007 May 18
1
penalized maximum likelihood estimator
dear R-helper,
I tried to find out a package in which i can have
penalized maximum likelihood estimator applying on
generalized extreme value distribution with beta
function) but could not. would you please help me to
know the name of the package. thanks for your help.
S.Murshed
--- r-help-request at stat.math.ethz.ch wrote:
> Send R-help mailing list submissions to
> r-help at
2007 Apr 01
3
Doing partial-f test for stepwise regression
Hello all,
I am trying to figure out an optimal linear model by using stepwise
regression which requires partial f-test, I did some Googling on the
Internet and realised that someone seemed to ask the question before:
Jim Milks <jrclmilks at joimail.com> writes:
> Dear all:
>
> I have a regression model that has collinearity problems (between
> three regressor variables). I
2007 Feb 24
1
recovering collums of DF using a text var.list
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2007 Feb 26
1
Chi Square with two tab-delimited text files
Hi,
I want to do a chi square test and I have two tab delimited text files with
Expected and Observed values to compare. Each file contains only the values
and are 48 rows by 116 columns. I have managed to do something with them,
but I don't think it is right as I got a p value of 1. In this case I used
the read.table() function to read the values from the files. But I don't
know if
2007 Mar 01
1
R (Input from Keyboard): How do I remove error?
Hi,
I am trying to read some value from keyboard in one of my R program. I want
to do manipulation on data based on this value. But I am facing a problem
which is described below with the help of an example:
My code is similar to:
:
:
cat("\n","Enter value:: ","\n")
y<-scan(n=1)
a <- b*y
cat("\n","Enter new value::","\n")
2007 Mar 06
2
Generate random numbers up to one
Dear all,
I would like to know if there is a simple way to generate random numbers
with the constrain that they sum up to one. I am new using R...
Thanks in advance,
N?ria
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2007 Mar 06
1
Waiting for Key input
Hi,
I have another question. Is there any command that waits for key input?
I am running R on OS X, so getGraphicsEvents doesn't work.
I have put some debug print messages in a function and would like to
pause the code every time the message is printed and continue on a
keypress.
Thank you
Saptarshi
Saptarshi Guha | sapsi@pobox.com | http://www.stat.purdue.edu/~sguha
2007 Mar 07
2
Download packages problem.
Hi,
I have a little problem with the installation of a new packages. The
installation of R software is correct, but my server required authentication
for use it, and for load a new package directly from R it is not possible.
Is there a code or process for server authentication (put my login and
password) in R for download directly the packages?
The best regards,
--
Luis Antonio Garavito
2007 Mar 12
1
Export successively displayed graphics
Hello,
I am running R version 2.4.1 on Debian.
I am using some R functions which produce several graphics displayed
successively with an interactive prompt between each graph. For example,
the plot.varest (vars) function produces such output (one graph per time
series on which the VAR model is fitted). Plots on GARCH models also
produce such outputs.
Moreover, the frontend I am using for R
2007 Mar 14
1
Trimming a Data Set
Hi,
I am trying to restrict a data set so as not to included outliers. Specifically, I would like to specify a percentage where a fraction of observations are eliminated from the data set, much in the same way that the trimmed mean function works - but leaving the restricted data set intact.
I have been using a function which will restrict the data set using:
> trim=function(x,p){
>