Displaying 20 results from an estimated 2000 matches similar to: "RegExp question"
2006 Jul 18
1
SpeexEncoder requires 320 samples to process a Frame, not 160
Hi guys
I have tried compiling this attached code, I made all the buffers 320, there is no trace of a 160 buffer, but I get a "
SpeexEncoder requires 320 samples to process a Frame, not 160" error.
Maybe there's something I'm missing, here's my code:
import java.io.IOException;
import java.io.FileOutputStream;
import java.io.File;
import
2006 May 26
3
Vector elements and ratios
Dear useRs,
I have two different length vectors: one column (1...m) and one row
vector (1...n):
20
40
20
60
5 4 2
Now I have to calculate ratios between column vector elements and each
row vector elements:
4 5 10
8 10 20
4 5 20
15 12 30
Thank's in advance for any suggestions,
Andrej
2006 Jan 17
6
For each element in vector do...
Dear R useRs,
I have a vector with positive and negative numbers:
A=c(0,1,2,3,0,4,5)
Now if i-th element in vector A is > 0, then i-th element in vector B
is a+1
else i-th element in vector b=a (or 0)
vector A: 0 1 2 3 0 4 5
vector B: 0 2 3 4 0 5 6
What's the right way to do this. I still have some problems with for and
if statements...
Cheers, Andrej
2011 Nov 14
2
Checkinstall and R-2.14.0
Dear all,
I try to install the latest R version using checkinstall (v. 1.6.2) on
Ubuntu 11.10. After solving all the dependencies (installed using
apt-get build-dep r-base) checkinstall fails to build and install R
package with the following error (the same commands build and install
R-2.13.2 on the same machine without any problem):
wget
2006 Jan 25
3
read.table problem
Dear R useRs,
I have big (23000 rows), vertical bar delimited file:
e.g.
A00001|Text a,Text b, Text c|345
A00002|Text bla|456
...
..
.
Try using
A <- read.table('filename.txt', header=FALSE,sep='\|')
process stop at line 11975 with warning message:
number of items read is not a multiple of the number of columns
I have no problems with processing similar file, which is
2007 Jun 25
3
How to shadow 'power' area?
Dear all,
Suppose I plot two normal distributions (A and B) side by side and add
vertical line which hipotheticaly represent alpha value; e.g.:
x <- seq(-3.5,5, length=1000)
y <- dnorm(x)
# Plot distribution A
plot(y~x, type='l',axes=F,xlab="",ylab="",lwd=2)
# Plot distribution B
y2 <- dnorm(x-1.5)
lines(y2~x,lwd=2)
# Plot vertical line for alpha value
2010 Feb 08
3
Hypercube in R
Dear all,
Does anybody have an idea or suggestion how to construct (plot)
4-dimensional hypercube in R.
Thanks in advance for any pointers.
Regards, Andrej
2006 Jan 28
1
Regex question
Dear R useRs,
is there any simple, build in function to match specific regular
expression in data file and write it to a vector. I have the following
text file:
*NEW RECORD
*ID-001
*AB-text
*NEW RECORD
*ID-002
*AB-text
etc.
Now I have to match all ID fields and print them to a vector:
001
002
etc.
I know that this is very simple with Perl or R-Perl interface, but if
possible, I want to do
2007 Nov 27
1
Questions on RWeka classifiers?
Hi,
I am using some classifiers in RWeka packages and met a couple problems.
(1) J48 implements C45 classifier, the C45 should be able to handle missing
values in both training set and test set. But I found the J48
classifier can
not be evaluated on test set with missing values--it just ignore them.
(2) The ensemble classifiers in RWeka such as bagging and boosting: there
is a
2011 Nov 13
1
libary(Rweka) J48 design tree
Hello everybody
I'm having some difficulties to design the decision tree algorithm J48.
I am using the following code and when I run it gives me the following
message
plot(m1)
Error in plot.Weka_tree(m1) :
Plotting of trees with multi-way splits is currently not implemented.
#The code
library(RWeka)
library(randomForest)
library(party)
if(require(mlbench, quietly = TRUE) &&
2008 Sep 18
2
Ability estimates for partial credit model
Dear all,
I'm working on ability estimates using Rasch model. Using the "ltm"
package, the procedure is quite simple:
## Factor Scores for the Rasch model
fit <- rasch(LSAT)
factor.scores(fit)
What about Partial Credit Model (PCM)? For PCM I use PCM function from
eRm package. Is there any similar function like factor.scores to
estimate ability scores using PCM model?
Best,
2006 Jan 15
1
Multiple comparison and two-way ANOVA design
Dear useRs,
I'm working on multiple comparison design on two factor (2 3 levels)
ANOVA. Each of the tests I have tried (Tukey, multcomp package) seem to
do only with one factor at a time.
fm1 <- aov(breaks ~ wool * tension, data = warpbreaks)
tHSD <- TukeyHSD(fm1, "tension", ordered = FALSE)
$tension
diff lwr upr p adj
M-L -10.000000 -19.35342
2011 Sep 07
1
Fwd: FSelector and RWeka problem
Hi all,
Although I sent the mail to Piotr, the author of FSelector, it should be better to ask here to let others know.
Yanwei
Begin forwarded message:
From: Yanwei Song <yanwei.song@gmail.com>
Date: September 7, 2011 4:41:58 PM EDT
To: p.romanski@stud.elka.pw.edu.pl
Subject: FSelector and RWeka problem
Dear Piotr,
Thanks for developing the FSelector package for us. I'm a new
2009 Jun 04
1
About classifier in RWeka
Hi everyone,
I have trouble to use RWeka, I tried: (w=weather dataset, all
preditors are nominal)
> m<-J48(play~., data=w)
> e<-evaluate_Weka_classifier(m,cost = matrix(c(0,2,1,0),
+ ncol = 2),numFolds = 10, complexity = TRUE,seed = 123,
+ class = TRUE)
it gives me exactly what I want, but when I tried the same classifier
on the other published data: (iris dataset has all numeric
2009 Apr 26
2
RWeka prediction
Dear All,I encountered a problem when I use RWeka for prediction.
Specifically, I use the following:
res=J48(X1~.,data=mydata);
predict(res), #it worked fine
but when I tried to use a different data set,
i.e. predict(res,newdata=mynewdata);
all the predictions I get is 0, which apparently is problematic.
What is weird is, if I use the old data, but use the newdata option,
i.e.
2010 Sep 26
4
How to update an old unsupported package
Hi all,
I have a package that is specific to a task I was repetitively using a
few years ago.
I now needed to run it again with new data.
However I am told it was built with an older version or R and will not work.
How can I tweak the package so it will run on 11.1?
It was a one-off product and has not been maintained.
Is there a way to "unpackage" it and repackage it to work?
I
2008 Dec 29
2
dudas
Quer?a saber si existe alguna funci?n de R para realizar el algoritmo
CHAID de ?rbol de clasificaci?n, existen de J48 por ejemplo pero no
encuentro nada de este algor?tmo.
Muchas gracias y un cordial saludo,
Juan
--
=========================================================
Juan Antonio Gil Pascual
Prof. Titular de M?todos de Investigaci?n en Educaci?n
correo: jgil at edu.uned.es
web:
2006 Apr 24
1
rmeta: forest plot problem
Der useRs,
I'm working on meta analysis using rmeta package. Using code below I
plot the forest plot:
library(rmeta)
data (catheter)
a<-meta.MH (n.trt, n.ctrl, col.trt, col.ctrl, data=catheter, names=Name,
subset=c(13,6,5,3,7,12,4,11,1,8,10,2))
summary(a) # odds ratio values and confidence intervals
metaplot(a$logOR, a$selogOR, nn=a$selogOR^-2,a$names, summn=a$logMH,
sumse=a$selogMH,
2017 Nov 09
2
samba_kcc RODC failes with NT_STATUS_ACCESS_DENIED
Hello Rowland,
of course it will be started by samba, I saw this output if I run "samba -i".
But I can trigger this output also by starting samba_kcc manually.
Andrej
-----Ursprüngliche Nachricht-----
Von: Rowland Penny [mailto:rpenny at samba.org]
Gesendet: Donnerstag, 9. November 2017 14:04
An: samba at lists.samba.org
Cc: Andrej Gessel <Andrej.Gessel at janztec.com>
2017 Mar 31
2
possible memory leak in ldb module while dbcheck on RODC
Hai Andrej,
Oeps, Sorry, my mistake 4.6.x needs at least 1.1.29.
But you can upgrade to 4.6.x ;-)
Check again and if that problem then still exists,
then i think you can better ask this one in the samba-technical list.
Or if Rowland knows something more about this.
One tip, wait untill tomorrow or the weekend, there wil be a new release due to the regression bug.
There planning is to be