Displaying 20 results from an estimated 8000 matches similar to: "problem with load('http://....') (PR#2344)"
2002 Apr 12
5
How to specify search order for require()
In a .First.lib I want to issue two require()s to insure that two other packages are loaded. But I want the package being loaded by .First.lib using library.dynam("mypackage",pkb,lib) to be higher in the search order than the two required packages, because I want to have a couple of functions from the two required packages overridden. What is the best way to do that? Thanks in advance
2001 Apr 07
2
A programming puzzler
I am trying to replicate part of the function of the
S-Plus terms.inner function. I don't need an entire
model terms object but R expressions or character
strings containing the innermost variable name given
a vector of character strings or expressions. Here
are some example inputs that each should result in the
string or expression "x":
x; x^2; g(x); h(g(x)); h(g(x^3));
2003 Apr 21
3
Dates in read.spss
I am using read.spss in the foreign package to read an SPSS save file. For date variables I get huge values such as 11489990400. Does anyone know how to convert these values to R POSIXct date objects? Thanks in advance -Frank
platform i686-pc-linux-gnu
arch i686
os linux-gnu
system i686, linux-gnu
status
major 1
minor
2003 Jun 05
2
ridge regression
Hello R-user
I want to compute a multiple regression but I would to include a check for
collinearity of the variables. Therefore I would like to use a ridge
regression.
I tried lm.ridge() but I don't know yet how to get p-values (single Pr() and p
of the whole model) out of this model. Can anybody tell me how to get a
similar output like the summary(lm(...)) output? Or if there is
2002 Apr 29
1
Release of Design library; update of Hmisc library
The Design library has been fully ported to R except for Cox proportional hazards regression modeling (using Therneau's survival package) which will be available in about two weeks. It will take much longer to make all the example code executable, is it currently contains many examples for which data are not provided. Thanks to Xiao Gang Fan <xiao.gang.fan1 at libertysurf.fr> who
2002 Apr 29
1
Release of Design library; update of Hmisc library
The Design library has been fully ported to R except for Cox proportional hazards regression modeling (using Therneau's survival package) which will be available in about two weeks. It will take much longer to make all the example code executable, is it currently contains many examples for which data are not provided. Thanks to Xiao Gang Fan <xiao.gang.fan1 at libertysurf.fr> who
2003 Jan 18
1
SAS transport files and the foreign package
Even though the FDA has no policies at all that limit our choices of statistical software, there is one defacto standard in place: reliance of the SAS transport file format for data submission (even though this format is deficient for this purpose, e.g., it does not even document value labels or units of measurement in a self-contained way). Because of the widespread use of SAS transport files in
2002 Aug 04
5
Pseudo R^2 for logit - really naive question
I am using GLM to calculate logit models based on cross-sectional data. I
am now down to the hard work of making the results intelligible to very
average readers. Is there any way to calculate a psuedo analoque to the R^2
in standard linear regression for use as a purely descriptive statistic of
goodness of fit? Most of the readers of my report will be vaguely familiar
and more comfortable with
2002 Mar 28
3
Vectorizing closest match
If anyone has a very fast vectorized method for doing the following I would appreciate some help. I want to avoid outer() to limit memory problems for very large n.
Let
x = real vector of length n
y = real vector of length n
w = real vector of length m, m typically less than n/2 but can be > n
z = real vector of length m
For w[i], i=1,,,m, find the value of x that is closest to w[i]. In
2001 Aug 26
1
Re: Variable labels (was Re: [R] Reading SAS version 8 d ata into
> From: fharrell@virginia.edu [mailto:fharrell@virginia.edu]
>
[snip]
> I think your code is more complex that is really needed.
>
> The problem with defaulting to deparse(...) is that
> multiple function pass-throughs return the wrong result:
>
[snip]
> So I don't see a large role for the deparse(...) method.
>
Actually one of the reasons that I included the
2002 Nov 24
2
R CMD build
Using R CMD INSTALL packagename.tar.gz on
platform i686-pc-linux-gnu
arch i686
os linux-gnu
system i686, linux-gnu
status
major 1
minor 6.1
year 2002
month 11
day 01
language R
I used to get html and latex files recreated only when the source .Rd file changed. Now I am getting html and latex (and text and example) recreated whenever I run R CMD INSTALL when I do
2002 Nov 24
2
R CMD build
Using R CMD INSTALL packagename.tar.gz on
platform i686-pc-linux-gnu
arch i686
os linux-gnu
system i686, linux-gnu
status
major 1
minor 6.1
year 2002
month 11
day 01
language R
I used to get html and latex files recreated only when the source .Rd file changed. Now I am getting html and latex (and text and example) recreated whenever I run R CMD INSTALL when I do
2001 Aug 24
1
RE: Variable lables (was Re: [R] Reading SAS version 8 data into
[Moved from R-help]
> From: fharrell@virginia.edu [mailto:fharrell@virginia.edu]
> I store variable labels as "label" attributes of vectors
> and use then in various plotting functions as well as the
> describe() function.
I would like to see general support for label attributes in the R plotting
and modeling functions. One possible way of implementing this is to create
a
2001 Jun 07
1
Suggestion for tapply
In S-Plus the ... argument for tapply is before simplify.
In R (1.2.3) ... is after simplify, causing the user to
have to specify simplify every time ... is used even
though the default is usually OK. Unless there was a
benefit to reordering the arguments, it might be a good
idea to reconsider the current function definition.
... is probably used more than simplify
(e.g., tapply(rainfall,
2003 Jun 17
1
Re: R: Problem from Philippe Glaziou
On Mon, 16 Jun 2003 09:56:07 +0200
Patrick Hausmann <p.hausmann at mr-regionalberatung.de> wrote:
> Dear Frank,
>
> I can reproduce the problem from Philippe Glaziou (see attachment).
> Maybe this can help.
> Best,
> Patrick
>
> Am Wollelager 11
> 27749 Delmenhorst
> Tel. 04221 96373-0
> Fax 04221 96373-29
>
> http://www.mr-regionalberatung.de
>
2003 Aug 06
3
Slight problem in sort
In
platform i686-pc-linux-gnu
arch i686
os linux-gnu
system i686, linux-gnu
status
major 1
minor 7.1
year 2003
month 06
day 16
language R
I get
> sort(c(3,1,NA))
[1] 1 3
Shouldn't NAs be retained by default?
Thanks -Frank
---
2001 Aug 23
1
Fortran routines from LINPACK in S+ but not R
Dear R Developers,
I should have had the Design library running in R by now but
have kept putting off changing some calls to LINPACK routines
to use those builtin to R. Specifically I call dqrsl1 and dqr.
Would it be an easy task to put those in the next release of
R? If not I'll finally bite the bullet and get back into
reading LINPACK documentation (which I have but haven't
examined
2001 Jun 15
1
Pass-through of unevaluated arguments
Thanks to Deepayan Sarkar (lattice) and Paul Murrell (grid)
I have nearly finished porting the Hmisc library's xYplot
function to R. xYplot extends xyplot to allow for error bars,
bands, and a few other features. In S-Plus I extended the
Trellis function xyplot mainly by writing panel.xYplot.
In R, xyplot contains a lot of code, so I implemented xYplot
by calling xyplot from it. Things are
2002 Sep 03
1
Properly initializing a plot
I have many functions for high-level plotting that early on in their code do something like strwidth('string', units='inches') before plotting. I do this before plot() to set the correct margins with par(mai=...), to leave room for wide text on the left or right margins.
If the plotting device is not opened strwidth( ) causes an error that plot.new() needs to be called. I can
2002 Sep 13
1
design package (plot problems)
Hi,
just making some experiments with
design library i get an error if
i want plot(fit) - show below from
onlineHelp !?
..perhaps is here another mask problem?, but
label from xtable which was my first problem
is now off !
Thanks for advance & regards,
Christian
$ n <- 1000 # define sample size
$ set.seed(17) # so can reproduce the results
$ age <- rnorm(n, 50, 10)