Displaying 20 results from an estimated 27 matches for "echip".
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chip
2001 Feb 13
1
Sticky levels (PR#846)
...[2]<-"us"
> citizen
[1] uk us no au uk us us
Levels: as au no uk us ** [STICKY "as"] **
> citizen[2]<-"gs"
Warning message:
invalid factor level, NAs generated in:
[<-.factor(*tmp*, 2, value = "gs")
--
Bob Wheeler --- (Reply to: bwheeler@echip.com)
ECHIP, Inc.
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r-devel mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !)...
2001 Feb 18
3
Rcmd
...running Windows NT4. Rcmd does not seen to
read the command line. Rterm and other things work
well. For example "Rcmd check --help" fails with
the command interpreter trying to find a program
or file called "check." What have I missed?
--
Bob Wheeler --- (Reply to: bwheeler at echip.com)
ECHIP, Inc.
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r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !) To...
2005 Feb 22
1
Re: R-help Digest, Vol 24, Issue 22
...ation has little effect the
variability may be large, while if it has a dramatic effect
(kills everything!), there may be no variability to speak of.
John Maindonald.
On 22 Feb 2005, at 10:06 PM, r-help-request at stat.math.ethz.ch wrote:
> To: "'Bob Wheeler'" <bwheeler at echip.com>
> Cc: r-help at stat.math.ethz.ch
> Subject: RE: [R] power.anova.test for interaction effects
> Reply-To: akniss at uwyo.edu
>
>
> It's a rather complex model. A 37*4 factorial (37 cultivars[var]; 4
> herbicide treatments[trt]) with three replications[rep] was carr...
2002 Dec 18
1
Windows binary of Dopt library
Dear R-helpers,
Would anybody have a compiled binary version (for Windows) of the Dopt
library that is in the development site?.
best regards,
IOsu
--------------------------------------------------------------
Jes?s Mar?a Fr?as Celayeta
Dublin Institute of Technology
School of Food Sci. and Env. Health.
Cathal Bruha St., Dublin 1. Ireland
Phone: +353 1 4024459 Fax: +353 1 4024495
2002 Nov 26
5
unexpected behaviour of rnorm()
Hello everyone.
If I do
f <- function(n){max(rnorm(n))}
plot(sapply(rep(5000,4000),f)) #[this takes my PC about 30 seconds]
then I get something quite unexpected: gaps in the distribution. For
me, the most noticable one is at about 3.6.
Do others get this? Is it an optical illusion? It can't be right,
can it? Or maybe I just don't understand the good ol' Gaussian very
2002 May 29
3
inverse gaussian random numbers
Dear R-people
Does someone have a routine to ngenerate inverse-gaussian random
numbers. I am thinking of
something similar to rinvgauss, pinvgauss etc. in S-plus.
best regards
Helgi
--
Helgi Tomasson FAX: 354-552-6806
University of Iceland PHONE:354-525-4571
Faculty of Economics and Business Administration
2001 May 10
3
lookup function for density(...) objects
Hi folks:
Is there a lookup function that returns the variate given the cumulative
probability for an object returned by the density(...) function?
> mydata _ as.vector(mymatrix)
> mydata.density _ density(mydata)
> mydata.p80 _ lookup(mydata.density, p=0.8) # is there any function to
accomplish this task?
Thanks.
Rajiv.
--------
Rajiv Prasad, Postdoctoral Research Associate,
2001 Feb 24
5
testing for integer
Dear People,
Consider the following fragment of R code
choose <- function(n,r)
{
if( is.integer(n) && is.integer(r) && n > 0 && r >= 0 )
{
.C("choose",as.double(n),as.double(r),comb = double(1))$comb
}
else stop("n must be a positive integer and r a non-negative integer.")
}
This is a practice function (n choose r), which I
2004 Feb 04
0
AlgDesign
...or this purpose.
I'd normally submit this sort of thing to beta test, but I guess the R
users are the beta testers, so have at it. It would probably be best to
send the bug reports directly to me rather then clutter up the newsgroups.
--
Bob Wheeler --- http://www.bobwheeler.com/
ECHIP, Inc. ---
Randomness comes in bunches.
_______________________________________________
R-packages mailing list
R-packages at stat.math.ethz.ch
https://www.stat.math.ethz.ch/mailman/listinfo/r-packages
2006 Feb 19
0
Zigurrat updated
...et.al (2005). A comment on the implementation
of the Ziggurat Method. Jour. Stat. Sci. 12-7, 1-4.
The fix takes care of problems for very large sets
of random values. I tested it a bit on small samples
and it seems ok. It will be on CRAN shortly.
--
Bob Wheeler --- http://www.bobwheeler.com/
ECHIP, Inc. --- Randomness comes in bunches.
_______________________________________________
R-packages mailing list
R-packages at stat.math.ethz.ch
https://stat.ethz.ch/mailman/listinfo/r-packages
2001 Oct 04
0
Summary on random data with zero skew and some kurtosis
...u>
The t-distribution family may help. These have zero skewness and
kurtosis ranging from the normal to infinite. He doen't know offhand the
relationship between degrees of freedom and kurtosis, but it should be
easy to look up (or evaluate by simulation).
6. Bob Wheeler <bwheeler at echip.com>
We can use the Johnson system. See the SuppDists package.
Abdul Kudus
=====================
Dept. of Statistics
Bandung Islamic University
Indonesia
====================
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r-help mailing list -- Read http://w...
2001 Oct 03
0
Summary : Generate random data from dist. with 0 skewness and some kurtosis
...u>
The t-distribution family may help. These have zero skewness and
kurtosis ranging from the normal to infinite. He doen't know offhand the
relationship between degrees of freedom and kurtosis, but it should be
easy to look up (or evaluate by simulation).
6. Bob Wheeler <bwheeler at echip.com>
We can use the Johnson system. See the SuppDists package.
Abdul Kudus
=====================
Dept. of Statistics
Bandung Islamic University
Indonesia
====================
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read http://w...
2004 Feb 04
0
AlgDesign
...or this purpose.
I'd normally submit this sort of thing to beta test, but I guess the R
users are the beta testers, so have at it. It would probably be best to
send the bug reports directly to me rather then clutter up the newsgroups.
--
Bob Wheeler --- http://www.bobwheeler.com/
ECHIP, Inc. ---
Randomness comes in bunches.
_______________________________________________
R-packages mailing list
R-packages at stat.math.ethz.ch
https://www.stat.math.ethz.ch/mailman/listinfo/r-packages
2004 May 20
1
Spearman probabilities and SuppDists
cor.test and SuppDists give me different P-values for the same
Spearman's rho. Which is correct, or am I doing something wrong?
> x <- c(44.4, 45.9, 41.9, 53.3, 44.7, 44.1, 50.7, 45.2, 60.1)
> y <- c( 2.6, 3.1, 2.5, 5.0, 3.6, 4.0, 5.2, 2.8, 3.8)
> cor.test(x,y,method="spearman")
Spearman's rank correlation rho
data: x and y
S = 48, p-value =
2004 Jul 27
3
ghyper package
Hello
I am searching ghyper package (generalized hypergeometric distributions).
Does anyone can send it to me?
Regards from Mexico
Lizbeth Román
[[alternative HTML version deleted]]
2004 Sep 09
1
Blom's approximation to rankits?
Hello,
My name is Lisa and I'm a statistician at Princess Margare Hospital. I
wonder if there is any function in R that calculate the Normal rankits
based on Blom's approximation?
Thank you very much
Lisa Wang Msc.
Princess Margaret hospital
Toronto, Ca
2004 Oct 09
1
inst directory
...s a single folder
"doc," but apparently any folder causes the problem. If inst is empty,
the project checks OK. This was not a problem before 1.9. I've checked
the documentation, but don't see a change. What am I missing.
--
Bob Wheeler --- http://www.bobwheeler.com/
ECHIP, Inc. ---
Randomness comes in bunches.
2005 Apr 06
1
insignificant factors in regression model
Hi list,
I am building a regression model with categorical predictor variable coded
by treatment contrasts. The summary of the regression model shows that some
levels are significant while others are not. The significant ones show that
they are statistically significant from the basis factor (at level 0). How
do we generally deal with those insignificant levels? If they are used for
2006 Jan 10
2
expected values of order statistics
Hello,
Could somebody point me, is there any function in R which returns
expected values of order statistics for normal distribution? I have been
looking and couldn't find it.
Thanks!
Anna
2004 Jan 09
1
Call and memory
...NEW_NUMERIC(1));
NUMERIC_POINTER(rvector)[0]=0.5;
SET_ELEMENT(alist,2,rvector);
UNPROTECT(1);
PROTECT(kvector=NEW_INTEGER(1));
INTEGER_POINTER(kvector)[0]=k;
SET_ELEMENT(alist,3,kvector);
UNPROTECT(1);
UNPROTECT(1);
return alist;
}
--
Bob Wheeler --- http://www.bobwheeler.com/
ECHIP, Inc. ---
Randomness comes in bunches.