Displaying 20 results from an estimated 800 matches similar to: "Help with reading data"
2003 Apr 28
4
plot(pam.object) error with R-1.7.0 on Red-Hat 8.0 i686
I don't know if there is some fault in compiling or a bug of the new
R-1.7.0 version:
cl.pam.2 <- pam(as.dist(1-cor(mel.data)),2)
plot(cl.pam.2)
perform a right partitioning and silhouette plot on the old R-1.6.2
instead
"Error in clusplot.default(x$diss,...... ;
x is not numeric"
is the output on the new R-1.7.0.
Same platform: RH8.0 i686.
Some suggestions?
A.S.
2004 Nov 11
5
expressions and paste
I have written a function to plot data which will be used for various different chemistries.
A simplified version is:
plot_data <- function(risk,levels,chem,sd2,measure){
plot(risk, levels,main=paste ("per", sd2, measure, "\n in usual", chem))
}
The problem is with the title.
This works fine if the variable "chem" is just text, but if it is an expression then
2004 Apr 02
1
which on array
Good morning !
Today I found a strange, for my poor knowledge of R, behaviour of
'which' on a matrix:
HAL9000> str(cluster.matrix)
num [1:227, 1:6300] 2 2 2 2 2 2 2 2 2 2 ...
HAL9000> class(cluster.matrix)
[1] "matrix"
HAL9000> ase <- cluster.matrix[1:5,1:5]
HAL9000> ase
[,1] [,2] [,3] [,4] [,5]
[1,] 2 2 2 0 -2
[2,] 2 2 2 0 -2
[3,]
2002 Nov 11
1
lines on class objects table
Hi dear R-list.
I would superimpose many lines of class 'table' over a plot(table.0,type
="l",...),
I tried 'lines(table.n,type="l",..)' but its behaviour is quite different
from those
of 'plot' :
>plot(table,type="l"...) # start graph from x = 0
>lines(table,type="l"...) # start graph from x = 1
Some sugestions? Thanks
2002 Dec 18
2
gene ontology association
Hello! I don't know if there is some R-package able
to associate ontology to a long list of GeneBank Name (a txt-tab file or
an XML file), i.e.
I would as output a formatted file with 4 columns (1:GeneBank Name
2,3,4:ontology).
I know that I have to perform a mapping of genes, I got a look on
AnnBuilder pkg,
but I 've not idea from where to start.
Some suggestion? Thanks in advance!
2002 Nov 01
2
Empirical distribution
If some can help to find under wich package can i find the commando's
wich i schould to use to work with the empirical cummulative (ecdf)
distribution and also the QQplot.
Zmarrou Hicham
Univesity of Amsterdam
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info",
2003 Jan 21
2
running R inside of e-macs
I can''t start r inside of emacs. When I try it says that it cannot find .Rhistory and then it says " This program ( pressumably Rterm) has performed an illegal operation and will be shut down.". How can I fix this problem?
[[alternate HTML version deleted]]
2003 Feb 06
2
.Rprofile, .Rfirst, and .Rdata
Hi all,
After a short hiatus away from R I have found that it's changed a bit.
I used to keep a definition of .First in .Rprofile that did a couple of
things on startup (load a couple of libraries). Now, I've discovered
that when I change the definition of .First in .Rprofile it doesn't
change anything when I start up, because .First is held over in .Rdata
from the last session.
2002 Nov 11
2
repeating a dataframe n times in the direction of the rows
Question:
How can a repeat a dataframe n times
in the direction of the rows?
(Or: How I can rbind a dataframe n times ?)
Example Data:
x <- data.frame( alpha=letters[1:3], num=1:3 )
n <- 4
Complicated solution: To rbind a dataframe n times I can program a loop:
xr <- x
for( i in 2:n ) xr <- rbind( xr, n )
Observation: To cbind a dataframe n times I
2003 Feb 05
3
tcltk installation problem
Dear all,
I want to use GraspeR (on R 1.6.0) and have to install tcltk library. When
I try to do this, I get back this error message:
Error in firstlib(which.lib.loc, package) :
TCL_LIBRARY is not set
Error in library(pkg, character.only = TRUE) :
.First.lib failed
But I have a tcl/tk package (Active TCL 8.4.1.0) correctly install on my PC
(Win95) and in the autoexec.bat the
2002 Nov 04
3
write table and dinnames
I would write in tab-text file a table like this one:
TAB colname1 TAB colname2 TAB TAB... colnameN
rowname1 # # #
rowname2 # # #
rownameM # # #
then I wrote something like:
mymatrix <- matrix(nrow=M,ncol=N,byrow=T)
rownames(mymatrix) <- chvector1
colnames(mymatrix) <- chvector2
2002 Oct 28
3
create an object list in a loop
Hi! Probably I perform this question because I did'nt still understand the
R-philosophy.
I have to build many matrix, with different dimensions, and I would to
assign them a
same 'prefix' name, i.e. "aval", but, obviuosly different suffix, something
like:
for (i in 1:n) {
aval%i% <- matrix(scan(data....),nrow=nr[i],ncol=nc[i]
...
}
where "%i%"
2003 Oct 23
7
generic algorithm
Dear all,
Is there any generic algorithm code for optimization implemented in R? I
searched without success.
Thanks,
--
Zhu Wang
Statistical Science Department
Southern Methodist University
Phone: (214)768-2453
Fax: (214)768-4035
Email: zhuw at mail.smu.edu
2004 Nov 02
4
Loadhistory problems
History files saved using nFile Save History do not open when using File Load History. I notice that when they are saved they do not seem to have a file extension and there is no option to chose an extension. Is this a problem. Other than this it seems so simple that I can't see what the problem is. I've tried using loadhistory and savehistory with the same problems. The syntax guide
2004 Feb 17
4
normality test
Hello,
I am analysing several samples whose sizes are from 9 to 110.
I would like to test their distribution with R,
whether they are normal or not.
I wonder which test for normality from R should I use .
Thank you for help.
Samuel
Samuel BERTRAND
Doctorant
Laboratoire de Biomecanique
LBM - ENSAM - CNRS UMR 8005
151, bd de l'Hopital
75013 PARIS
Tel. +33 (0) 1 44 24 64 53
Fax +33 (0) 1
2003 Sep 24
1
Graph window is not available any more
Hi all,
I have currently been using the book Modern Applied Statistics with S from
Venables and Ripley. At chapter 6 on Linear Statistical models I wanted to
produce the plot as shown by "Figure 6.1" using Whiteside's data. xyplot
command seems not to work on my version of "R"(version 1.7.0) running on
different environments (Win XP, Win 98 and Win 2000). I then used the
2003 Oct 14
3
Number Format
Hi
A very simple question on number formats. After some calculations, some variables I have come out looking like this:
-1.892972e+00
Now apart from the fact that the "e+00" is completely redundant, I would rather have the number represented without the e bit. I want to export data like this to a text file and would rather have:
-1.892972
than
-1.892972e+00
I have tried
2003 Nov 17
2
Rweb: how to use source()
I cannot discover how to set or find the working directory in
Rweb, so that I can source() a file from the server. The file I
source() must refer to a data file in its directory.
setwd() does not do anything, and getwd() says that the working
directory is in /var/www/cgi-bin/ (on Linux).
(I have a student who installed R on her own computer and
analyzed half of her data, and then her computer
2004 Jan 09
1
pb with install
dear all,
I try to update my Rversion fro 1.7.1 to 1.8.1 on linux. I have a problem
when I try to install pacakges from Bioconductors with :
source("http://www.bioconductor.org/getBioC.R")
and
getBioC(relLevel="release")
somme errors append and when I make a library(affy) for example I obtain :
> library(affy)
Error in setIs("character",
2004 Mar 09
2
read.table() question
Hi,
In the following code, I got an error meesage if an
input file is empty, and the program stopped running.
Could someone to tell me how to handle this problem. I
want the program to keep running. Thanks.
for i in [1:3]
{
file=paste("file", i, ".dat")
x <- read.data(file)
x(11)
plot(x);
dev.off()
}