fit$contrasts <- attr(x, "contrasts")
fit$xlevels <- .getXlevels(mt, mf)
fit$na.action <- attr(mf, "na.action")
if (model)
fit$model <- mf
if (!x.ret)
fit$x <- NULL
if (y.ret)
fit$y <- y
fit
}
-Original
Dear R-devel,
There seems to be a discrepancy in the order in which lm and rlm evaluate their
arguments. This causes rlm to sometimes produce an error where lm is just fine.
Here is a little script that illustrate the issue:
> library(MASS)
> ## create data
> n <- 100
> dat <- data.frame(x=rep(
2
minor 9.1
year 2009
month 06
day26
svn rev48839
language R
version.string R version 2.9.1 (2009-06-26)
-Original Message-
From: Joshua Ulrich [mailto:josh.m.ulr...@gmail.com]
Sent: Friday, October 15, 2010 1:31 PM
To: Vadim Ogranovich
Dear R-developers,
I am trying to figure out a way to call browser() when an error occur, and
naturally I want the browser() to be called in the environment of the error.
I tried something simple in vain:
> f <- function() { x <- 1; stop('ok') }
> tryCatch(f(), error=browser())
Called from: try
Berry [mailto:cbe...@tajo.ucsd.edu]
Sent: Friday, June 25, 2010 9:16 PM
To: Vadim Ogranovich
Cc: 'r-h...@r-project.org'
Subject: Re: [R] converting result of substitute to 'ordidnary' expression
On Fri, 25 Jun 2010, Vadim Ogranovich wrote:
> Dear R users,
>
>
>
Dear R Developers,
I am writing a function that would save all objects in all environments
'visible' from the point where the function is called (very much like
save.image, but kind of saving the entire stack).
I figured that the call
lapply (seq(0, sys.nframe()), function(i) ls(sys.frame(i), a
Thank you Martin! The new 'rule'-s is exactly what I wanted. It's intuitive and
consistent with the scalar use.
Thanks,
Vadim
-Original Message-
From: Martin Maechler [mailto:maech...@stat.math.ethz.ch]
Sent: Tuesday, July 28, 2009 5:00 AM
To: Vadim Ogranovich
Cc:
.
Still don't know how to do that.
I agree that having a clear error message when yleft, yright, and f are set to
non-scalars is better than silently returning NA.
Thanks,
Vadim
-Original Message-
From: William Dunlap [mailto:wdun...@tibco.com]
Sent: Monday, July 27, 2009 12:14 PM
Dear R-devel,
The following line crashes R
> approx(1, 1, 0, method='const', rule=2, f=0, yleft=NULL, ties='ordered')$y
Process R:2 exited abnormally with code 5 at Tue Jul 21 14:18:09 2009
> version
_
platform i386-pc-mingw32
arch i386
os mingw32
syst
Dear R-devel,
I installed R-2.9.1 on the 'y:' drive which happens to be mounted to an IBRIX
file system.
I also downloaded and installed the Rtools bundle recommended for 2.9x.
When I build a source package launching R via RGui.exe it seems to work fine:
## setting path according to "Appendix E
Actually, the correct permutation is given by the inverse of qr$pivot:
foo$coefficients[foo$qr$pivot] <- foo$coefficients
Here foo is an object returned by lsfit, see below.
-Original Message-
From: Vadim Ogranovich
Sent: Friday, March 13, 2009 5:25 PM
To: 'r-devel@r-pro
Dear R-devel,
It seems that lsfit incorrectly reports coefficients when the input matrix 'x'
is rank-deficient, see the example below:
## here values of 'b' and 'c' are incorrectly swapped
> x <- cbind(a=rnorm(100), b=0, c=rnorm(100)); y <- rnorm(100); lsfit(x, y)$coef
Intercept a
In Progress:
* EURO DOLLAR data for trading Z* and vice versa
* scripts for computing asset correlations w/ application to ED
* improving R code for collecting stats accross dates and groups of data.
Completed:
* New signals for US Equity (based on PK alpha). Brandon will simulate and
deploy if p
Dear R-devel,
When a character vector is used to subscript a list and when some of the
subscripts are not present in the list names R returns NULL for those
subscripts and generate NA names for each of them:
> list(b=1)[c('a','b')]
$ <<-- generated name
NULL
$b
[1] 1
Wouldn't it be more int
Hi,
I'd like to say thank you to the developers of Rscript. It is a nice tool that
allows integration of R into multi-tool work flow and, in my experience so far,
it does exactly what is expected of a utility program.
Thank you very much!
Vadim
[[alternative HTML version deleted]]
Hi,
The list.files() function seems to order its result vector differently
when is run during R CMD INSTALL. Here is an example:
~% mkdir ~/FOO
~% cd ~/FOO/
~/FOO% touch a A b B
~/FOO% ls
a A b B
Put foo.R in the vor package. The foo.R just prints the files in ~/FOO:
print(list.files("~/F
In his "Introduction to Probability Models" Sheldon Ross describes (sec
11.4.1, 8th edition) the alias method for such weighted sampling.
It is based on some decomposition of the original distribution (the
weights) into a mixture of two-point distributions. I don't know the
run-time complexity of t
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