Displaying 20 results from an estimated 4000 matches similar to: "prlab"
1998 Aug 20
2
R-beta: Hmisc and R
Hello,
I want to try the Design and Hmisc library from FE Harrell but,
i have trouble with the copyright for the library Hmisc :
in the home of the author :
http://fharrell.biostat.virginia.edu/s/unix/
in the file Hmisc.README
###COPYRIGHT NOTICE
###You may not port code in the Hmisc library to R.
Aie, Why ????
###You may distribute these functions freely as long as you do so
without
1997 Oct 17
2
R-alpha: bug in svd
I use R Version 0.60 Alpha (September 18, 1997) on a Linux Pentium
(Debian 1.3) and on a Sparc-Sun-Solaris 2.5.=20
R> svd(matrix(1:16,4,4))
=09yields on both machines
Error: error 4 in dsvdc
R> svd(matrix(1:20,4,5))
=09gives a result on the Linux computer
$d
[1] 0 0 0 NA
$u
[,1] [,2] [,3] [,4]
[1,] 1 0 0 0
[2,] 0 1 0 0
[3,] 0 0 1 0
[4,] 0
1998 Aug 23
0
R-beta: design && hmisc && CRAN
On Fri, 14 Nov 1997, Jim Lindsey <jlindsey at luc.ac.be> sent an email to
r-devel describing his first shot at porting Design and Hmisc to R. A
few days later, his port snapshot of Design was uploaded to CRAN's
src/contrib/devel area, and has since been available from there.
A few weeks ago, Andreas Weingessel <A.Weingessel at ci.tuwien.ac.at> had a
look into porting Hmisc to R
1999 Apr 07
2
Bug list summary (automatic post)
=================================================
This is an automated summary of the status of the R-bugs
repository.
Note that this may be neither complete nor perfectly
correct at any given instance: Not all bugs are reported,
and some reported bugs may have been fixed, but the
repository not yet updated.
Some bug fixes are difficult to verify because they pertain
to specific hardware or
1998 May 28
5
performance of apply
I noticed that apply is VERY SLOW when applied to a "large"
dimension as for example when computing the row sums of a matrix with
thousands of rows.
To demonstrate it, I did some benchmarking for different methods of
computing the row sums of an nx10 matrix with n =3D 2000, ..., 10000.
The first method (M1) I used is the normal apply command:
y <- apply(x,1,sum)
The second method
1998 Jan 14
1
R-beta: pairs-plot
I have the following problem. I have some multidimensional data points
"x" and a curve "fit" fitted to these points. How can I combine
R> pairs(x)
and
R> pairs(fit,panel=lines)
in one plot, so that I can see how good the curve fits the data?
A command like
R> pairs(x, panel=function(x,y) {points(x,y); lines(lowess(x,y))})
does not work, since I fit the curve in all
2010 Feb 10
1
Copyright on src/nmath/qnorm.c
At the top of src/nmath/qnorm.c it is stated:
* Copyright (C) 1998 Ross Ihaka
* Copyright (C) 2000--2005 The R Development Core Team
* based on AS 111 (C) 1977 Royal Statistical Society
* and on AS 241 (C) 1988 Royal Statistical Society
The routine is in fact an f2c'd version of AS241 from StatLib:
http://lib.stat.cmu.edu/apstat/241 and http://lib.stat.cmu.edu/apstat/
It
2007 Jun 15
1
subscript out of bounds error in lda
I work with Windows, R version 2.4.1
I'm trying to do a discriminant analysis and, in trying to figure out how to
do it following the example from R help, I'm getting an error that says
'subscript out of bounds'. I don't know what this means and how to solve it
(I'm very new with R)
I'm doing everything in this made-up test matrix:
group var1 var2 var3
1 1
2002 Mar 13
1
several bugs (PR#918) lists and matrices
### I got bit again by the same bugs I wrote about a year ago.
### The bugs are related to matrices and arrays of lists.
### 1. There is a clear inconsistency in how R handles two
### functionally equivalent statements.
### array() is able to take a list and create a matrix.
### matrix() is unable to create that matrix.
> vector("list", 2)
[[1]]
NULL
[[2]]
NULL
>
2003 Feb 14
5
Translating lm.object to SQL, C, etc function
This is my first post to this list so I suppose a quick intro is in
order. I've been using SPLUS 2000 and R1.6.2 for just a couple of days,
and love S already. I'm reading MASS and also John Fox's book - both have
been very useful. My background in stat software was mainly SPSS (which
I've never much liked - thanks heavens I've found S!), and Perl is my
tool of choice for
1998 Jan 30
1
R-beta: Fig driver for "R"?
Hello all R users and developers!
In the "Notes on R" I have found the following information:
(page 60, 13-th footnote) "... a better solution is to use the fig()
driver (available from statlib) and use a conversion program, such as
fig2dev, to convert the resultant fig code to Encapsulated Podtscript."
I was very glad to read it, because I'm often forced to use
2003 Jan 29
1
Add-on bug? Win fracdiff failed from http://www.stat.unipg.it/stat/statlib/R/CRAN/ (PR#2504)
Full_Name: Jussi Mäkinen
Version: 1.6.2
OS: Win2000
Submission from: (NULL) (193.210.145.2)
I tried to download fracdiff from http://www.stat.unipg.it/stat/statlib/R/CRAN/
but I got the messages box:
The procedure entry point daxpy_ could not be located in the dynamic link
library R.dll
and the following lines to RGui:
Error in dyn.load(x, as.logical(local), as.logical(now)) :
unable
2008 Oct 22
3
coalesce columns within a data frame
Dear all,
I searched the mail archives and the R site and found no guidance
(tried "merge", "cbind" and terms like "coalesce" with no success).
There surely is a way to coalesce (like in SQL) columns in a
dataframe, right? For example, I would like to go from a dataframe
with two columns to one with only one as follows:
From
Name.x Name.y
nx1 ny1
nx2 NA
2010 Jun 18
4
Drawing sample from a circle
Hi, I would like to draw 10 uniformly distributed sample points from a circle with redius one and centered at (0,0). Is there any R function to do that?
Thanks,
[[alternative HTML version deleted]]
2015 Nov 03
3
Problema R se cuelga neuralnet
Estimados
Tengo un problema, R se cuelga (cierra, aborta, etc.) al usar códigos de neuralnet. Copio un ejemplo cualquiera para preguntar si a otros les pasa lo mismo o es un problema puntual en mi computadora (uso R revolution win 10).
# install, load package
install.packages(NeuralNetTools)
library(NeuralNetTools)
# create model
library(neuralnet)
AND <- c(rep(0, 7), 1)
OR <- c(0, rep(1,
1998 Jan 07
1
R/S Difference - split
In S it is possible to "split" a matrix into its rows, using
split(matrix, 1:number_of_rows). This is not possible in R.
Example:
R:
R> split(matrix(rnorm(1:20),4, 5), 1:4)
Error in split(x, as.factor(f)) : argument lengths differ
S:
> split(matrix(rnorm(1:20),4, 5), 1:4)
$"1":
[1] -0.1804794 0.5269439 0.6248224 -0.3243427 -1.2987407
$"2":
[1] 0.9384254
1998 Aug 28
2
No subject
Sirs,
may be that a fault exists in the file
"postscript" under "r documentation"
which contains "Notes on R:A Programming..."
at http://www.ci.tuwien.ac.at/R/contents.htm|
I did not succeed in reading and printing it.
Can You help me?
Many thanks in advance.
F.Petronio
petronio at univ.trieste.it
1999 Jul 28
1
skewness, kurtosis
Dear R-Users and Developpers,
Currently R does not include functions to compute the skewness and
kurtosis. I programmed it myself in the following way, but probably
*real* programmers/statisticians can do that better:
mykurtosis <- function(x) {
m4 <- mean((x-mean(x))^4)
kurt <- m4/(sd(x)^4)-3
kurt
}
myskewness <- function(x) {
m3 <- mean((x-mean(x))^3)
skew <-
2000 Nov 29
1
matlab to R / 2
Colleagues,
Thanks for the suggestions concerning reading matlab files into R
1. Regarding documentation for the format of matlab files, please see two
manuals that I picked up from the matlab websites.
The name of the files are:
api_guide.pdf
api_ref.pdf
Use your web browser to access these files in my FTP directory
<ftp://ftp.niwa.cri.nz/incoming/mcclatchie> under the appropriate
1997 Apr 10
1
R-beta: R on Windows 3.1
My attempt to get R running in Windows 3.11 didn't go
very far. I have read the FAQ and install.tex carefully.
What am I missing? Here is the step:
1. From statlib I got rexe.zip (and rbeta.zip, but this one
seems for windows 95 only?).
2. On unzipping I got 8 files, including rb1.exe, and a sub-
dir win32s, which I copied to windows/system.
(There is no setup.exe,