Displaying 20 results from an estimated 9000 matches similar to: "R.matlab question"
2006 Dec 17
1
Start Matlab server in R 2.4.0
In order to start matlab server in R , I using the following commands
getwd()
setwd("D:\R_matlab")
install.packages("R.oo")
install.packages("R.matlab")
install.packages("R.utils")
library(R.matlab)
Matlab$startServer()
a minimized MATLAB Command Window come out,
but I can't make this window become larger. Does anyone know why?
I type
2006 Dec 15
6
Query regarding linking R with Matlab
Thank you sir for your prompt reply.
Currently i am stuck at point where I need to call an available Matlab program from an R 2.4.0 interface. How can I do this? I have downloaded the R.matlab file and also the manual in pdf. But still i am not able to get through the problem. I will be grateful to you if you can elaborate me on this.
Awaiting your reply,
regards,
Bhanu Kalyan K
2007 Apr 10
2
Matlab import
Dear R-Experts,
here again a question concerning matlab. With the command "matrixM=[1 2
3;4 5 6]" a matrix under Matlab was constructed. It was than stored with
the command "save('matrixM.txt','matrixM')".
Now I tried to import the data in R with the help of the command
"Z=matrix(scan("Z:/Software/R-Programme/matrixM.txt"))"
An error
2010 Aug 27
8
R.matlab package help
Hi,all
I have a problem running R.matlab package
(under 2.10.1 version). I can set up the matlab server under local
machine(run the MatlabServer.m), "
And I can use setVariable and evaluate matlab functions in R. But when I ask
Matlab to send the value back to R using getVariable function it
always returns an error:
"
??? Error: A MATLAB string constant is not
2013 Feb 07
0
Help R.matlab
Dear useRs,
This post relates to a similar problem (
https://stat.ethz.ch/pipermail/r-help/2010-August/250719.html)
I am using R.matlab (R.matlab v1.6.3 (2013-01-17) to iterate matrix
multiplication in matlab 2012Rb. Everything works fine except for some
random iteration of my model the command getVariable would fail to bring
matlab objects back to R. Could someone help me understand what's
2006 Nov 20
4
for help about logistic regression model
I have a dataset like this:
p aa
index x y z sdx sdy sdz delta as
ms cur sc
1 821p MET 1 -5.09688 32.8830 -5.857620 1.478200 1.73998 0.825778
13.7883 126.91 92.37 -0.1320180 111.0990
2 821p THR 2 -4.07357 28.6881 -4.838430 0.597674 1.37860 1.165780
13.7207 64.09 50.72 -0.0977129 98.5319
3 821p GLU 3 -5.86733 30.4759
2007 Jan 19
2
split data set
I have a data(ABC) like this:
x y
A 3 4
A 1 3
B 2 6
B 4 8
C 5 4
C 6 7
I want to split this data into
A:
x y
A 3 4
A 1 3
B
B 2 6
B 4 8
C
C 5 4
C 6 7
anyone knows how to do that?
thanks,
Aimin Yan
2006 Nov 26
1
plot p(Y=1) vs as
I am trying to fit a logistic regression model for this data set.
Firstly, I want to plot P(Y=1) vs As and P(Y=1) vs Aa.
Does any body know how to do these in R.
Thanks,
Aimin
> p5 <- read.csv("http://www.public.iastate.edu/~aiminy/data/p_5_2.csv")
> str(p5)
'data.frame': 1030 obs. of 6 variables:
$ P : Factor w/ 5 levels "821p","8ABP",..: 1
2007 Jan 28
2
nnet question
Hello,
I use nnet to do prediction for a continuous variable.
after that, I calculate correlation coefficient between predicted value and
real observation.
I run my code(see following) several time, but I get different correlation
coefficient each time.
Anyone know why?
In addition, How to calculate prediction accuracy for prediction of
continuous variable?
Aimin
thanks,
> m.nn.omega
2006 Oct 24
2
for help
I have a question in R.
In directory H:/Delta_angle
I have 19 files like this:
ALA.delta
ASN.delta
ASP.delta
CYS.delta
GLN.delta
GLU.delta
HIS.delta
ILE.delta
LEU.delta
LYS.delta
MET.delta
PHE.delta
PRO.delta
SER.delta
THR.delta
TRP.delta
TYR.delta
VAL.delta
I want to read these files to 19 data sets in R.
All these data sets have "P","AA",index","delta"
2006 Nov 23
2
Sweave question
I try Sweave
and get Sweave-test-1.tex
but hot to run LaTeX on 'Sweave-test-1.tex'?
I am using WinEdt.
thanks,
Aimin
> Sweave(testfile)
Writing to file Sweave-test-1.tex
Processing code chunks ...
1 : print term verbatim
2 : term hide
3 : echo print term verbatim
4 : term verbatim
5 : echo term verbatim
6 : echo term verbatim eps pdf
7 : echo term verbatim eps pdf
2007 Nov 15
3
generate combination set
I have a set data={A,B,C,D,E,F,G}
I want to choose 2 letter from 8 letters, i.e. generate the combination set
for choose 2 letters from 8 letters.
I want to get the liking:
combination set={AB,AC,AD,....}
Does anyone konw how to do in R.
thanks,
Aimin
2006 Dec 08
1
question for if else
I have a data set like this
I want to assign "outward" to Y if sc <90 and assign "inward" to Y if sc>=90.
then cbind(p1982,Y) to get like these
p aa as ms cur sc Y
1 154l_aa ARG 152.04 108.83 -0.1020140 92.10410 inward
2 154l_aa THR 15.86 28.32 0.2563560 103.67100 inward
3 154l_aa ASP 65.13 59.16 0.0312137 7.27311 outward
4 154l_aa CYS 57.20 49.85
2007 Mar 07
1
how to avoid to overwrite object
Dear R list,
I have a question in R, it could be very simple, but I don't know how to do it?
for example:
I assign 6 to x in beginning of of my R script code
> x<-6
......
After many line code, I forget using x variable before, I use x
again, and do assignment like this
> x<-45
> x
[1] 45
then value 6 of previous x is replaced by 45.
I am wondering if there are some way R
2006 Dec 30
2
Evaluating Entire Matlab code at a time
Hi.
On 12/30/06, Bhanu Kalyan.K <kalyansikha at yahoo.com> wrote:
> Dear Mr.Bengtsson,
>
> The steps you have suggested are working for single lines of matlab
> statements. But, as i mentioned earlier, If i want to see the output of an
> entire matlab code (say swissroll.m) then you suggested me to do
> res <- evaluate(matlab, "swissroll").
> When i did
2007 Mar 04
2
lattice histogram
How to add mean,sd, number of observation in each panel for lattice histogram?
Aimin
2007 Nov 17
3
R and reading matlab compressed files
Is there any way to read these files (standard .mat files, created by
matlab version 7 onwards are compressed)? I know that R.matlab doesn't
read them (it even says in the file MatlabServer.m "Matlab v7 saves
compressed files, which is not recognized by R.matlab's readMat()" (lines
47-8)).
I know I should be able to make R call Matlab and transfer data (not that
I managed to
2008 Mar 26
2
Moving data between R and Matlab back and forth?
Hi to the list,
I am trying to find a way to painlessly move structured data back and
forth between R and Matlab (also Octave). For this purpose I found the
R.matlab package great help. I wish to use a Matlab -v6 MAT file as an
intermediary format, because it is well read by both Matlab and
Octave. It is also well read by 'readMat' function in R.matlab
package, but that is where I run
2003 Apr 03
2
Matrix eigenvectors in R and MatLab
Dear R-listers
Is there anyone who knows why I get different eigenvectors when I run
MatLab and R? I run both programs in Windows Me. Can I make R to produce
the same vectors as MatLab?
#R Matrix
PA9900<-c(11/24 ,10/53 ,0/1 ,0/1 ,29/43 ,1/24 ,27/53 ,0/1 ,0/1 ,13/43
,14/24 ,178/53 ,146/244 ,17/23 ,15/43 ,2/24 ,4/53 ,0/1 ,2/23 ,2/43 ,4/24
,58/53 ,26/244 ,0/1 ,5/43)
#R-syntax
2008 Nov 02
2
R CMD check with Matlab and perl?
Hi, All:
How might one test Matlab and perl code during "R CMD check"?
I ask for two reasons: First, the "fda" package exists in both R
and Matlab, and it would help if we could run test examples in Matlab as
part of "R CMD check". I tried "R.matlab", but could not get it to work
in that context.
Second, I have professional