Displaying 20 results from an estimated 20000 matches similar to: "assignment function"
2002 Sep 04
3
logical and NA
Hi there, (sorry Martin, ich habe den falschen Empfaenger erwischt :-( )
Is there a function in the base package or elsewhere which returns TRUE and
not NA, even if NA is involved: (I did not find in the help system :-( )
if ( x==something & !is.na(something))
or
if ( x==something & !is.na(x==something))
If "something" is complicated, a function would be handy.
Thanks
2002 Nov 06
5
"chemical" plot
Hi all,
May be there is a plot which shows 3 variables in a triangle, their sum
being constant. I have forgotten its name, and a search in the engine using
"plot" did not help.
Does anyone know of such a procedure in R or S?
Thank you
--christian
Dr.sc.math.Christian W. Hoffmann
Mathematics and Statistical Computing
Landscape Dynamics and Spatial Development
Swiss Federal Research
2006 Jan 26
1
construct a bundle, subdirs do not exist?
Hi,
Sorry to bother, but I checked around and did not succed creating a
bundle from six existing packages (which are checkable, installable,
etc. individually). I carefully followed the procedure given in ch.
1.1.5 Package bundles. However, I am getting
hoffmann at fluke:~/R/Sources >R CMD check cwhmisc
* checking for working latex ... OK
* using log directory
2001 Feb 05
1
packages, help
Hi,
Using help under help.start() is working fine (html)
Q1:
using > ?solve results in the message
"sh: ~/R/tmp/R4f32S1cfb: cannot open"
displayed in the XEmacs buffer "help[R](solve)". BUT there exists a file
R.R4f32S167e
in that directory. (not quite the same name).
Does the "sh: " prefix suggest that the shell "sh" is run, although my
2008 Dec 05
1
How to retrieve a method
Hi there,
I am interested in the inner workings of wilcox.test:
> wilcox.test
function (x, ...)
UseMethod("wilcox.test")
<environment: namespace:stats>
how can I get at the code, if it is R-code? For Methods one should be able to learn what extension to use, but here default or such do not help.
Is there a wayplot.default to learn which different versions of
2006 Jan 11
2
Browser problem, Misrepresentation of .html in Solaris Firefox (PR#8471)
Hi there
I hope that I am in the right forum.
I am working on Win2000 PC connected via Exceed 6.0.1.0 to a
SunOS fluke 5.9 Generic_118558-11 sun4u sparc SUNW,Sun-Fire-480R
There I am using Mozilla Firefox 1.0.7 as a browser.
I am having
difficulties viewing .html files. Their first pages are displayed
normally, black on white, links in blue. When I scoll down, the pages
appear black
2001 Sep 06
4
code/documentation mismatches
Hi,
I would like to get a hint on how to debug in the case of
#> R CMD check pllib
signalling
* checking for code/documentation mismatches ... WARNING
Error in parse(file, n, text, prompt) : syntax error on line 22
I am able to sort out which of the files is the culprit is by swapping
files in and out of the /R and /man directories. But I cannot find the
syntax error, the .Rd file seems
2006 Mar 27
3
seq(2,5,-2) not an error but NULL
Hi,
This may belong more to r-develop, but general discussion may be useful
(for the how many-th time ?)
seq(2,5,-2)
seq(5,2,2)
both result in
Error in seq.default(2, 5, -2) : wrong sign in 'by' argument
But often, if not always, mathematicians and programmers want a
behaviour e.g. in for loops, where this statement results in an empty
statement, that is
for (ii in seq(2,5,-2))
2001 Feb 15
4
package dependence
Hi,
I want to create several packages, with package Aa depending on functions
in package A. My directories with .r and .Rd are organized as follows
./A/man/*.Rd
./A/R/*.r
./Aa/man/*.Rd
./Aa/R/*.r
Afre creatin package A with
R CMD check A
R CMD INSTALL --library=lib A
I then have
./lib/A/help etc
If I try to do
R CMD check Aa
R CMD INSTALL --library=lib Aa
I am getting
* checking
2001 Mar 01
1
Using csh
Hi all,
I am fancying the idea of using my preferred shell (t)csh when invoking
system(). How can I do that? (I didn't find anything about that in the FAQ).
Thanks for help,
-christian
Dr.sc.math.Christian W. Hoffmann
Mathematics and Statistical Computing
Landscape Modeling and Web Applications
Swiss Federal Research Institute WSL
Zuercherstrasse 111
CH-8903 Birmensdorf, Switzerland
phone:
2001 Jul 12
1
Sys.getenv
I am running R-1.3.0 on Solaris 8:
Under Solaris I do
setenv dendro_us hoffmann
echo $dendro_us gives back:
hoffmann
which is correct.
When in R I do:
Sys.getenv("dendro_us") I get
dendro_us
""
which is NOT correct:
Inverse effect (taken from help of Sys.getenv)
Under R:
print(Sys.putenv("R_TEST"="testit", ABC=123))
[1] TRUE TRUE
2006 Jan 27
4
regular expressions, sub
Hi,
I am trying to use sub, regexpr on expressions like
log(D) ~ log(N)+I(log(N)^2)+log(t)
being a model specification.
The aim is to produce:
"ln D ~ ln N + ln^2 N + ln t"
The variable names N, t may change, the number of terms too.
I succeded only partially, help on regular expressions is hard to
understand for me, examples on my case are rare. The help page on R-help
2004 Mar 24
6
First Variable in lm
Hi all,
I just cannot think of how to do it:
I want to take the first variable (column) of a data frame and regress
it against all other variables.
bla <- function (dat) {
reg <- lm(whateverthefirstofthevariablenamesis ~., data=dat)
return(reg)
}
What kind of function do I have to take instead of the
whateverthefirstofthevariablenamesis,
eval(), substitute(), get(), ...
to
2001 Feb 14
0
No subject
Thanks for the tip to p.dalgaard and Prof Brian Ripley:
For reasons that I have forgotten, the value of an assignment function
is always passed using an argument called "value", so try changing
"sub" to "value".
The last argument of any assignment function has to be named `value'.
This is different from S, and is in the FAQ, section 3.3.3:
"In R, the last
2004 Sep 22
1
is.constant
>>x <- c(1, 2, NA)
>>is.constant(x)
>
> [1] TRUE
>
> For data such as c(1, 1, 1, NA), I should think the safest answer should be
> NA, because one really doesn't know whether that last number is 1 or not.
>
> Andy
>
My version is
is.constant <- function(x) {
if (is.numeric(x) & !any(is.na(x))) identical(min(x), max(x)) else FALSE
}
2006 May 09
1
2.3.0 problems
Hi,
Since the installation of R-2.3.0 I have the following problems:
1. Startup
.First() produces
------------------
Started in /home/woodstock/hoffmann/Projects/RtoZ/Windwurf/R with
'~/R/.Rprofile' edited on 2006-04-28, 11:08
During startup - Warning messages:
1: use of NULL environment is deprecated
2: use of NULL environment is deprecated
3: use of NULL environment is
2002 Jan 04
2
R CMD check (PR#1240)
SunOS fluke 5.8 Generic_108528-07 sun4u sparc SUNW,Ultra-Enterprise
R-1.4.0
Running from the command line
R CMD check chlib
results in the log file 00check.log:
* using log directory `/home/woodstock/hoffmann/R/Sources/chlib.Rcheck'
* checking for file `chlib/DESCRIPTION' ... OK
* checking package directory ... OK
* checking for sufficient/correct file permissions ... WARNING
*
2003 Jun 03
3
(no subject)
Hi,
I would like to know if it is possible to get printed output while a loop is taking place.
Example:
for(i in 1:10){
print(i)
some long process
}
This will print the values of i only after the loop is finished, what I would like is to
see them when the process enters the i-th iteration to keep track of how the
program is running.
Thank you,
Gilda
2001 Feb 22
4
Setting elements in data frame
Hi all,
I have a problem which I am biting my teeth into unsuccessfully:
(x <- data.frame(S1=c("a","b","d","F"),N1=c(2,4,6,9),N2=c(6,NA,0,6)))
S1 N1 N2
1 a 2 6
2 b 4 NA
3 d 6 0
4 F 9 6
> is.na(x)
S1 N1 N2
1 FALSE FALSE FALSE
2 FALSE FALSE TRUE
3 FALSE FALSE FALSE
4 FALSE FALSE FALSE
No I want to be able to do:
1) Setting
2000 May 18
1
attach (S-style)?
Hi everyone,
Being new to the crowd of R users I am wondering what the equivalent of
attach("/home/bla/hoffmann/R/.RData",2)
(S style) is in R.
What I want is a split of .RData repositories. One in a central place where I keep functions and interesting stuff important for all work I am doing, an several others which contain stuff of an dividual project only. When I start in a