Re: [R] add custom strip to lattice plot

2007-08-01 Thread Patrick Drechsler
"Deepayan Sarkar" <[EMAIL PROTECTED]> writes: > On 7/30/07, Patrick Drechsler <[EMAIL PROTECTED]> wrote: >> what is the recommended way of adding a strip to a lattice plot? > > See ?strip.default. > >> In the example below I would like to add the value of mean(y) to a new >> strip.: >> >> --8<---

[R] sapply?

2007-08-01 Thread [EMAIL PROTECTED]
I have to compare four different grape varieties proteome in two different years. I don't know what test would be more suitable for my data. I think that an anova two way can be usefull also if someone suggested me to perform a manova. In addiction, I can perform each test on a single protein a

Re: [R] Simple table with frequency variable

2007-08-01 Thread [EMAIL PROTECTED]
I have to compare four different grape varieties proteome in two different years. I don't know what test would be more suitable for my data. I think that an anova two way can be usefull also if someone suggested me to perform a manova. In addiction, I can perform each test on a single protein a

Re: [R] t-distribution

2007-08-01 Thread Stephen Tucker
p <- seq(0.001,0.999,,1000) x <- qt(p,df=9) y <- dt(x,df=9) plot(x,y,type="l") polygon(x=c(x,rev(x)),y=c(y,rep(0,length(y))),col="gray90") Hope this helps. ST --- "Nair, Murlidharan T" <[EMAIL PROTECTED]> wrote: > Indeed, this is what I wanted, I figured it from the function you and > Mark poi

[R] Air Turkey.

2007-08-01 Thread Air Turkey
Sehr geehrte Damen und Herren. Air Turkey ist in Istanbul-Izmir-Antalya ein Spezialveranstalter.www.air-turkey.com Air Turkey spezialisiert für ihre Fluege-Chartermiete,Spezialreisen,Hotels-Gruppenreisen von Kultur und Bildungsreisen.Fuer Vereinen,Sportgruppen,Kirchen. Wir sind spezialisiert a

Re: [R] new user question on dataframe comparisons and plots

2007-08-01 Thread Stephen Tucker
Hi Conor, I hope I interpreted your question correctly. I think for the first one you are looking for a conditioning plot? I am going to create and use some nonsensical data - 'iris' comes with R so this should be reproducible on your machine: library(lattice) data(iris) x <- iris # make some fac

[R] Using 'diff' on zoo vs zooreg classes (possible bug?)

2007-08-01 Thread Josh Quigley
Hello, Can anyone explain the following behaviour? To me it seems a bug, but maybe it is intentional. It seems that a diff on a zooreg class that is not _strictly_ regular only considers those entries that are 'deltat' apart. In the following, diff on the zooreg class only returns values where

Re: [R] how to plot a differential equation?

2007-08-01 Thread Moshe Olshansky
Hi Montserrat, What exactly would you like to plot? Your differential equation can be easily integrated so that you can get an implicit expression for F(x), i.e. expression like G(c,x,F(x)) = 0 where G is a known function and c is an arbitrary constant. For every value of c and each value of x su

[R] how to plot a differential equation?

2007-08-01 Thread Montse Rue
Hi, I would like to plot the following equation: dF(x)/dx=(k1+k2F(x))(1-F(x)) where k1 and k2 are parameters that I have estimated already. How can I plot the curve in R? Thanks! Montserrat Rue Universitat de Lleida (Spain) [[alternative HTML version deleted]] __

Re: [R] Extracting a website text content using R

2007-08-01 Thread mtmorgan
Perhaps more fun is > library(XML) > res = htmlTreeParse("http://www.omegahat.org/RSXML/";, useInternalNodes=TRUE) > xpathApply(res, "//h1", xmlValue) [[1]] [1] "An XML package for the S language" Martin Quoting Steven McKinney <[EMAIL PROTECTED]>: > > > >-Original Message- > >From: [

Re: [R] Extracting a website text content using R

2007-08-01 Thread Steven McKinney
>-Original Message- >From: [EMAIL PROTECTED] on behalf of Am Stat >Sent: Wed 8/1/2007 2:19 PM >To: r-help@stat.math.ethz.ch >Subject: [R] Extracting a website text content using R >Dear useR, >Just wandering whether it is possible that there is any function in R could >let me get the t

Re: [R] Moving data from one workspace to another

2007-08-01 Thread apjaworski
Walter, Here is what I do in similar situations. I am on WinXP but this should be similar on other systems (I hope). 1. I start R with the new .RData workspace (usually by double-clicking on it). 2. I go to File < Change Dir menu item. 3. I change the directory to where the old .RData is. 4.

Re: [R] Extracting a website text content using R

2007-08-01 Thread Saeed Abu Nimeh
work with it as text. for text mining use: 1- http://wwwpeople.unil.ch/jean-pierre.mueller/ 2- tm by Ingo F. Am Stat wrote: > Dear useR, > > Just wandering whether it is possible that there is any function in R could > let me get the text contents for a certain website. > > Thanks a lot! > > Be

Re: [R] Predict using SparseM.slm

2007-08-01 Thread roger koenker
If you are feeling altruistic you could write a predict method for slm objects, it wouldn't be much work to adapt what is already available and follow the predict.lm prototype. On the other hand if you are looking for something quick and dirty you can always resort to newX %*% coef(slmo

Re: [R] Problem to remove loops in a routine

2007-08-01 Thread jim holtman
First thing to do is to use Rprof to determine where the time is being spent and then you can pinpoint what section of code is taking the time. A quick look says to do all your subsetting at once. You might look into using 'split' to create the subsets and then access the subsets with "[[...]]".

Re: [R] Extracting a website text content using R

2007-08-01 Thread Am Stat
All right, my question is, if there is(are) such function(s), what is(are) it(they) ? Best, Leon 2007/8/1, Bert Gunter <[EMAIL PROTECTED]>: > > Yes, there are. > > (Please see and follow the posting guide if you wish to obtain something > more specific) > > > Bert Gunter > Genetech Nonclinic

Re: [R] Splom custom superpanels

2007-08-01 Thread Deepayan Sarkar
On 8/1/07, Jonathan Williams <[EMAIL PROTECTED]> wrote: > I thought one nice addition to a splom figure would be to have the > scatterplots in the upper triangle and a color-coordinated > correlation matrix on the bottom. So I tried my hand at customizing > panel.pairs(), and was rebuffed. Many t

[R] Predict using SparseM.slm

2007-08-01 Thread T. Balachander
Hi, I am trying out the SparseM package and had the a question. The following piece of code works fine: ... fit = slm(model, data = trainData, weights = weight) ... But how do I use the fit object to predict the values on say a reserved testDataSet? In the regular lm function I would do so

[R] Moving data from one workspace to another

2007-08-01 Thread Walter R. Paczkowski
Hi, Suppose I have a dataframe in one workspace (a .RData file) dedicated to one project. I then create a new workspace (a new .RData file) for another project but I want to move or copy the dataframe to the new workspace. How can I do this efficiently? Just do a dump and th

[R] Problem to remove loops in a routine

2007-08-01 Thread Sébastien
Dear R-users, I have written the following code to generate some trellis plots. It works perfectly fine except that it is quite slow when it is apply to my typical datasets (over several thousands of lines). I believe the problem comes from the loops I am using to subset my data.frame. I read

Re: [R] Extracting a website text content using R

2007-08-01 Thread Bert Gunter
Yes, there are. (Please see and follow the posting guide if you wish to obtain something more specific) Bert Gunter Genetech Nonclinical Statistics -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Am Stat Sent: Wednesday, August 01, 2007 2:19 PM To: r-h

[R] Extracting a website text content using R

2007-08-01 Thread Am Stat
Dear useR, Just wandering whether it is possible that there is any function in R could let me get the text contents for a certain website. Thanks a lot! Best, Leon [[alternative HTML version deleted]] __ R-help@stat.math.ethz.ch mailing list

[R] new user question on dataframe comparisons and plots

2007-08-01 Thread Conor Robinson
I'm coming from the scipy community and have been using R on and for the past week or so. I'm still feeling out the language structure, but so far so good. I apologize in advance if I pose any obvious questions, due to my current lack of diction when searching for my issue, or recognizing it if I

Re: [R] Simple table with frequency variable

2007-08-01 Thread jim holtman
I am not exactly sure what you are asking for. I am assuming that you want a vector that represent the combinations that are given combinations that are present: > N [1] 11 22 31 42 51 12 21 32 41 52 > table(i,j) j i 1 2 1 1 1 2 1 1 3 1 1 4 1 1 5 1 1 > z <- table(i,j) > which(z==1

Re: [R] Reading Matrices

2007-08-01 Thread jim holtman
If want you want to do is to delete the diagonal values in your matrix, here is one way of doing it assuming that your matrix is 'x': # ignore the diagonal value in each column z <- lapply(1:ncol(x), function(a) x[-a, a]) # put back into a matrix z <- do.call('cbind', z) On 8/1/07, Urmi Trivedi

Re: [R] t-distribution

2007-08-01 Thread Henrique Dallazuanna
see ?polygon function. -- Henrique Dallazuanna Curitiba-Paraná-Brasil 25° 25' 40" S 49° 16' 22" O On 01/08/07, Nair, Murlidharan T <[EMAIL PROTECTED]> wrote: > > Indeed, this is what I wanted, I figured it from the function you and > Mark pointed me. Thank you both. > > I am trying to plot it to

Re: [R] t-distribution

2007-08-01 Thread Ted Harding
On 01-Aug-07 19:18:05, [EMAIL PROTECTED] wrote: > Well, is "t = 1.11" all that accurate in the first place? :-) > > In fact, reading beween the lines of the original enquiry, what the > person probably wanted was something like > > ta <- pt(-1.11, 9) + pt(1.11, 9, lower.tail = FALSE) > > which

Re: [R] add custom strip to lattice plot

2007-08-01 Thread Deepayan Sarkar
On 7/30/07, Patrick Drechsler <[EMAIL PROTECTED]> wrote: > Hi, > > what is the recommended way of adding a strip to a lattice plot? See ?strip.default. > In the example below I would like to add the value of mean(y) to a new > strip.: > > --8<---cut here---start---

Re: [R] lattice grayscale "theme"

2007-08-01 Thread Deepayan Sarkar
On 7/30/07, Patrick Drechsler <[EMAIL PROTECTED]> wrote: > "Deepayan Sarkar" <[EMAIL PROTECTED]> writes: > > On 7/30/07, Patrick Drechsler <[EMAIL PROTECTED]> wrote: > >> The Gmane interface seems to have some lag at the moment... > >> > >> "Deepayan Sarkar" <[EMAIL PROTECTED]> writes: > >> > >> >

Re: [R] t-distribution

2007-08-01 Thread Nair, Murlidharan T
Indeed, this is what I wanted, I figured it from the function you and Mark pointed me. Thank you both. I am trying to plot it to illustrate the point and I tried this plot(function(x) dt(x, df = 9), -5, 5, ylim = c(0, 0.5), main="t - Density", yaxs="i") Is there an easy way to shade the area un

[R] a question about d F(x, y; rho) / d rho = f(x, y; rho)

2007-08-01 Thread ilee
Hello, My name is IKJIN LEE and I am studying in University of Iowa. Recently, I have been trying to prove the fact d F(x, y; rho) / d rho = f(x, y; rho), but I could not. In the mean time, I found that Professor S. Le Cessie from Netherlands kindly gave you an elegant proof of d F(x, y; rho) /

Re: [R] t-distribution

2007-08-01 Thread Bill.Venables
Well, is "t = 1.11" all that accurate in the first place? :-) In fact, reading beween the lines of the original enquiry, what the person probably wanted was something like ta <- pt(-1.11, 9) + pt(1.11, 9, lower.tail = FALSE) which is the two-sided t-test tail area. The teller of the parable wi

Re: [R] t-distribution

2007-08-01 Thread Ben Bolker
csiro.au> writes: > > for the upper tail: > > > 1-pt(1.11, 9) > [1] 0.1478873 > wouldn't pt(1.11, 9, lower.tail=FALSE) be more accurate? __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read

Re: [R] t-distribution

2007-08-01 Thread Daniel Nordlund
?pt is what you want. Hope this is helpful, Dan Daniel Nordlund Bothell, WA > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > On Behalf Of Nair, Murlidharan T > Sent: Wednesday, August 01, 2007 11:43 AM > To: r-help@stat.math.ethz.ch > Subject: [R] t-distributi

Re: [R] t-distribution

2007-08-01 Thread Bill.Venables
for the upper tail: > 1-pt(1.11, 9) [1] 0.1478873 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Nair, Murlidharan T Sent: Thursday, 2 August 2007 4:43 AM To: r-help@stat.math.ethz.ch Subject: [R] t-distribution If I have a calculated t can I get the p

Re: [R] t-distribution

2007-08-01 Thread Leeds, Mark \(IED\)
if you mean the area to the left of the 1.11 point on the x axis of a t dist with 9 degrees of freedom, Then you need to use pt(1.11,9). See ?pt for more info. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Nair, Murlidharan T Sent: Wednesday, August 01,

[R] t-distribution

2007-08-01 Thread Nair, Murlidharan T
If I have a calculated t can I get the probability associated with it using an R function by giving it the df and t? I know I can do the whole calculation using t.test() or get the t-distribution using qt(). If t=1.11 and df =9 can I get the probability? Thanks../Murli [[alternativ

[R] constrOptim

2007-08-01 Thread Joanne Lee
Hi, I'm having trouble using the constrOptim function to generate the 9-component vector argmin of the function ELfsds: ELfsds <- function(pvechat){ LG=0 for(i in 1:9){ LG=LG+log(pvechat[i]) } return(-LG) } with accompanying gradient function:

Re: [R] shadow between two lines in plot()

2007-08-01 Thread Stephen Tucker
see ?rect, or, for more general shapes, ?polygon ## EXAMPLES plot(c(0,500),c(0,500),type="n",las=1) rect(par("usr")[1],200,par("usr")[2],300,col="grey90") points(seq(0,500,length=3),seq(0,500,length=3)) plot(c(0,500),c(0,500),type="n",las=1) polygon((par("usr")[1:2])[c(1,1,2,2)], (c(200,3

[R] Splom custom superpanels

2007-08-01 Thread Jonathan Williams
I thought one nice addition to a splom figure would be to have the scatterplots in the upper triangle and a color-coordinated correlation matrix on the bottom. So I tried my hand at customizing panel.pairs(), and was rebuffed. Many times. Four hours of fruitless debugging later, I turn to yo

[R] Warning generated by Panda GateDefender Integra.

2007-08-01 Thread gatedefender
08/01/2007 18:46:14 [GMT+0100] For security reasons certain items found in an email with your address as the sender have not been accepted. File name: TRANSCRIPT.SCR Filtered by: Malformed messages Sender: r-help@stat.math.ethz.ch Recipients: [EMAIL PROTECTED] CC:

Re: [R] [R-pkgs] New R package sqldf

2007-08-01 Thread davidr
It works after rm(list=ls()) I had a function called 'fn'; if I had paid close attention when I loaded gsubfn, I would have seen the warning. My fault. Thanks again for a most useful package! David L. Reiner Rho Trading Securities, LLC -Original Message- From: Gabor Grothendieck [mail

Re: [R] how to sort dataframe levels

2007-08-01 Thread Johnson, Andrea
Emilio- One possible way to do this is to create a new factor and put the levels in the order you want them in. For example: related.differences$header2 <- factor(related.differences$header, levels=c("spontaneous recovery", "negative reinforcer", ... etc. ) where you want spontaneous recovery

Re: [R] Two-way ANOVA

2007-08-01 Thread [EMAIL PROTECTED]
I forget to specify that the data in the table are random. and I want to know how it is possible to carry out all the two way ANOVA test in a single run for all the columns. thank you -- Initial Header --- >From : [EMAIL PROTECTED] To : Cc : "r-help" r-h

[R] shadow between two lines in plot()

2007-08-01 Thread Ding, Rebecca
Dear R users, I used the following code to draw a scatter plot. plot(x,y,type="n") points(x,y,pch=1) And then I used the abline functions to draw two lines. I want to add the shadow between those two lines. abline(h=200) abline(h=300) Any suggestions? Thanks Rebecca -

[R] cross-correlations

2007-08-01 Thread michela rosso
Dear R-users, I would like a suggestion. I have two time series covering the period 1000-2000 a.D. and I would like to understand if there are some time significant correlations between them. Samples in the first time series are quite compact because about a sample per year is available.

[R] lattice: densityplot: improper length of lim when more than one conditioning variable, scales free, and empty panels

2007-08-01 Thread Benjamin Tyner
I am using R 2.5.0 and lattice 0.15-5. plot1, plot2, and plot3 all work fine. plot4 gives the error. x<-1:12 f<-gl(3,4) g<-gl(4,3) plot1<-xyplot(y~x|f*g) plot2<-xyplot(y~x|f*g,scales=list(relation="free")) plot3<-densityplot(~x|f*g) plot4<-densityplot(~x|f*g,scales=list(relation="free")) Than

Re: [R] [R-pkgs] New R package sqldf

2007-08-01 Thread Gabor Grothendieck
On 8/1/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > Extremely cool and useful > > I immediately saw uses for it in some of the work I do. > So went to look at it. I especially liked the examples with joins! > > I observed a few small bugs in the documentation: > > - The help references >

[R] Two-way ANOVA

2007-08-01 Thread [EMAIL PROTECTED]
I've got this dataframe X12 X14 X17 X19 vitigni years 11 4 78 54 rie 2005 21 4 7 4 rie 2005 31 4 75 5 rie 2005 42 5 66 5croa 2005 51 4 4 46croa 2005 62 5 7 6croa 2005 73 2 56 5 rie 2006 83 6

[R] passing args to R CMD BATCH in win 2000

2007-08-01 Thread Stephen . Bond
Hello and sorry to bother. Please help. I searched the archives but could not find out why --args is being ignored on Windows 2000. I try R CMD BATCH --slave 11.R 11.Rout --args "12" and 11.R has x=commandArgs(trail=T) print(x) a=x[length(x)] write.csv(a,file="13.out") q("no") the argument i

[R] Reading Matrices

2007-08-01 Thread Urmi Trivedi
Dear all, I have been successful so far in plotting matrices and getting the regression line. But, as the matrices contains values like 1 and 0 (diagonal line) which is actually not needed as they are for the same gene, is creating bias in my regression line. I wish to neglect that part of the

Re: [R] plot matrix data- lattice?

2007-08-01 Thread Gabor Grothendieck
?matrix On 8/1/07, Dong Guo <[EMAIL PROTECTED]> wrote: > Thanks, Gabor. > > My matrix is from a big array(year, regions,variables). so, matrix does not > have row names or col names, how could i add the col names or row names?? > > Thanks again. > Dong > > > On 8/1/07, Gabor Grothendieck <[EMAIL P

Re: [R] plot matrix data- lattice?

2007-08-01 Thread Dong Guo
Thanks, Gabor. My matrix is from a big array(year, regions,variables). so, matrix does not have row names or col names, how could i add the col names or row names?? Thanks again. Dong On 8/1/07, Gabor Grothendieck <[EMAIL PROTECTED]> wrote: > > Try this: > > mat <- matrix(1:24, 6, dimnames = lis

Re: [R] plot matrix data- lattice?

2007-08-01 Thread Gabor Grothendieck
Try this: mat <- matrix(1:24, 6, dimnames = list(year = 2001:2006, region = letters[1:4])) library(lattice) xyplot(Freq ~ year | region, as.data.frame.table(mat)) On 8/1/07, Dong Guo <[EMAIL PROTECTED]> wrote: > Dear all, > > I have a matrix, dim = (years, regions) > > I would like to plot th

[R] plot matrix data- lattice?

2007-08-01 Thread Dong Guo
Dear all, I have a matrix, dim = (years, regions) I would like to plot the data in a lattice so that each panel is region's plot with y-axis based on values, x-axis based on year. how can I do that? Many thanks in advance. Dong [[alternative HTML version deleted]] __

Re: [R] "Cut marks" on a plot's y-axis to indicate it is a truncated axis

2007-08-01 Thread John Kane
--- David Lloyd <[EMAIL PROTECTED]> wrote: > Hi, > > I've plotted a Kaplan-Meier curve but the curves > only range from 0.7 to > 1 on the y-axis. Therefore I have used: - > > ylim=c(0.7,1) > > [although I think convention dictates that you plot > 0.5 to 1 to show the > median? A few papers I'v

Re: [R] A complicated 'aggregate'

2007-08-01 Thread Gabor Grothendieck
Use wtd.mean from Hmisc and by: Lines <- " 11:00:0134 1000 11:00:0135 500 11:00:0135 1000 11:00:0234 500 11:00:0235 500 " library(Hmisc) # for wtd.mean library(zoo) library(chron) # replace with DF <- read.table("mytable.dat")

Re: [R] clear workspace

2007-08-01 Thread Gavin Simpson
On Wed, 2007-08-01 at 14:06 +0200, Dong GUO 郭东 wrote: > Dear all, > > How can I clear the workspace, as we do in Matlab "clear all"?? > > Many thanks in advance. > > Dong ?rm E.g.: rm(list = ls()) will remove everything shown by ls(). Look at ?ls to see possible arguments to that function t

[R] clear workspace

2007-08-01 Thread Dong GUO 郭东
Dear all, How can I clear the workspace, as we do in Matlab "clear all"?? Many thanks in advance. Dong [[alternative HTML version deleted]] __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read t

[R] Simple table with frequency variable

2007-08-01 Thread G. Draisma
Hallo, Im trying to find out how to tabulate frequencies of factors when the data have a frequency variable. e,g: i<-rep(1:5,2) j<-rep(1:2,5) N<-10*i+j table(i,j) gives a table of ones as each combination occurs only once. How does one get a table with the corresponding N's? Thanks! Gerrit. -

Re: [R] array loop

2007-08-01 Thread Dong GUO 郭东
Thanks again, Petr. Following the reference, that would be true that "=" only assign values to the top level...So apparently using '<-' is the safe all the time to assign values. Dong On 8/1/07, Petr PIKAL <[EMAIL PROTECTED]> wrote: > > Hi > > "Dong GUO ¹ù¶«" <[EMAIL PROTECTED]> napsal dne 31.07

Re: [R] "Cut marks" on a plot's y-axis to indicate it is a truncated axis

2007-08-01 Thread Jim Lemon
David Lloyd wrote: > Hi, > > I've plotted a Kaplan-Meier curve but the curves only range from 0.7 to > 1 on the y-axis. Therefore I have used: - > > ylim=c(0.7,1) > > [although I think convention dictates that you plot 0.5 to 1 to show the > median? A few papers I've read have done this]?? > >

[R] "Cut marks" on a plot's y-axis to indica te it is a truncated axis

2007-08-01 Thread David Lloyd
Hi, I've plotted a Kaplan-Meier curve but the curves only range from 0.7 to 1 on the y-axis. Therefore I have used: - ylim=c(0.7,1) [although I think convention dictates that you plot 0.5 to 1 to show the median? A few papers I've read have done this]?? BUT, I would like a symbol like // (but r

[R] "Cut marks" on a plot's y-axis to indica te it is a truncated axis

2007-08-01 Thread David Lloyd
Hi, I've plotted a Kaplan-Meier curve but the curves only range from 0.7 to 1 on the y-axis. Therefore I have used: - ylim=c(0.7,1) [although I think convention dictates that you plot 0.5 to 1 to show the median? A few papers I've read have done this]?? BUT, I would like a symbol like // (but r

[R] Re : Custom axis

2007-08-01 Thread joris . dewolf
What about the other way round? x <- 1:10 y <- rnorm(10,10,1) x2 <- 3*x + 2 plot(y ~ x2, xaxt = "n") axis(side=1,at = x2, labels = x) Florent Bresson

[R] Re : Custom axis

2007-08-01 Thread Florent Bresson
Maybe I do not explain well what I would like to do. I do not want to change the labels of the axis, but the scale. What I want is a general procedure for changing the scale. Its like using a logarithmic scale on a plot. Labels are the same, but the increases of x along the x-axis are defined by

Re: [R] Custom axis

2007-08-01 Thread joris . dewolf
x <- 1:10 y <- rnorm(10,10,1) x2 <- 3*x + 2 plot(y ~ x, xaxt = "n") axis(side=1,at = x, labels = x2) Joris Florent Bresson <[EMAIL PROTECTE

[R] Custom axis

2007-08-01 Thread Florent Bresson
Dear R users, I would like to draw a plot with a custom scale for the axis. More precisely, instead of plotting y on x, I want to plot y on a monotone function of x (for instance a*x+b). Which command and/or package should I use in order to get this result? Thanks Florent Bresson

Re: [R] Nonlinear optimization with constraints

2007-08-01 Thread Patrick Burns
If you put in penalties for breaking constraints, it is generally better to make the penalty depend on the size of the violation. This keeps the function continuous (though usually not differentiable at the boundary), and gives the optimizer a hint about which way to go. Patrick Burns [EMAIL PRO

[R] need help with pdf-plot

2007-08-01 Thread Antje
Hello, I'm trying to plot a set of barplots like a matrix (2 rows, 10 columns from"reduced_mat") to a pdf. It works with the following parameters: pdf("test.pdf",width=ncol(reduced_mat)*2, height=nrow(reduced_mat)*2, pointsize = 12) par(mfcol = c(nrow(reduced_mat),ncol(reduced_mat)), oma = c(0

[R] RWeka cross-validation and Weka_control Parametrization

2007-08-01 Thread strinz
Hello, I have two questions concerning the RWeka package: 1.) First question: How can one perform a cross validation, -say 10fold- for a given data set and given model ? 2.) Second question What is the correct syntax for the parametrization of e.g. Kernel

Re: [R] Nonlinear optimization with constraints

2007-08-01 Thread Bartjoosen
Make a function and add the constraints to the function eg. if (Ai1 > x ) Inf. By making the result Infinite, you have added the constraints manually. Vu Nguyen-4 wrote: > > Hello R community, > > I am sorry for the previous accidental posting as I pressed a wrong key. > > I am using R for

Re: [R] deriv for psigamma

2007-08-01 Thread Martin Maechler
> "UweL" == Uwe Ligges <[EMAIL PROTECTED]> > on Tue, 31 Jul 2007 12:13:45 +0200 writes: UweL> francogrex wrote: >> Hi, 2 questions: [] >> Question 2: >> >>> deriv(~gamma(x),"x") >> >> expression({ >> .expr1 <- gamma(x) >> .value <- .expr1

Re: [R] array loop

2007-08-01 Thread Petr PIKAL
Hi "Dong GUO 郭东" <[EMAIL PROTECTED]> napsal dne 31.07.2007 15:27:35: > Thanks, Petr. > > I changed the equation mark from "=" to "<-", then, it works fine. Dont know > what difference it has made between the "=" and "<-".. from help page The operators <- and = assign into the environment in

Re: [R] MTBF Reliability calculations

2007-08-01 Thread Andrew Rowland
On Tue, 2007-07-31 at 15:10 -0700, Jennings, Eric wrote: > I'm working on a project involving reliability values (known failure > rates) for a system with approximately 700 components with a set > cconfiguration. > > I'm looking to compute a "parts-count" MTBF (mean time between failures) > for th