Re: [R] [Rcpp-devel] Help with integrating R and c/c++

2011-02-19 Thread Rohit Pandey
Hi Christopher/ Dirk, Thank you very much for your replys. I think the idea of using inline as you suggest is the best way to start off with using c++ with R. I went through your examples and also plenty I found on the net. I have been trying to run some of these over the past few days, but have c

Re: [R] censoring symbols on survfit plot

2011-02-19 Thread Patrick Connolly
On Fri, 18-Feb-2011 at 06:01AM -0600, Terry Therneau wrote: |> --begin included message |> Hi, when ploting Kaplan-Meier estimate curves as below, the censoring |> symbols |> (crosses) to not change thickness along the lines |> plot(survfit(surv ~ I(x>=cut.off) ),lty=c(1,2), lwd=2) |> |> is

[R] help about loop

2011-02-19 Thread 韩文衡
Hi all, I am try to do a loop on a data .such as: X<-data.frame(name=c(1:9),SN=c(1,1,1,2,2,2,3,3,3),EW=rep(1:3,3)) X name SN EW 11 1 1 22 1 2 33 1 3 44 2 1 55 2 2 66 2 3 77 3 1 88 3 2 99 3 3 out<-list() for ( i in 1:3) {out[[i]]<-subs

[R] How to detect the spatial point pattern with Thomas process based on pcf

2011-02-19 Thread Jeff Fang
Hi all, I am using "spatstat" to investigate the spatial structure of some plant populations, but I have no idea about detecting the spatial point pattern with Thomas process based on pcf. Additionally, generating simulation envelope using this null model is another problem for me. I am not very f

Re: [R] help about loop

2011-02-19 Thread David Winsemius
On Feb 18, 2011, at 11:06 PM, 韩文衡 wrote: Hi all, I am try to do a loop on a data .such as: X<-data.frame(name=c(1:9),SN=c(1,1,1,2,2,2,3,3,3),EW=rep(1:3,3)) X name SN EW 11 1 1 22 1 2 33 1 3 44 2 1 55 2 2 66 2 3 77 3 1 88 3 2 99 3 3

Re: [R] Scaling Lattice Graphics for tikzDevice

2011-02-19 Thread Dieter Menne
Elliot Joel Bernstein wrote: > > I'm trying to use lattice graphics to produce some small plots for > inclusion in a LaTeX file. I want the LaTeX fonts to be used in the plots, > but to be scaled down to match the size of the plot. > > I agree with Deepayan. With tikzdevice, tust try to get

Re: [R] clustered bar chart help

2011-02-19 Thread Jim Lemon
On 02/19/2011 06:46 AM, Li, Qinghong, ST. LOUIS, NRC St. Louis Petcare wrote: Sorry the data were all messed up. Let me try again. Can anyone help me to plot a chart graph? I have a data set like this. I would like a bar chart graph which mouse1's two treatments are clustered together, so on. I

Re: [R] breaks/bins question

2011-02-19 Thread Jim Lemon
On 02/19/2011 08:50 AM, Julie McWhorter wrote: Thank you Joshua and Jim--I got the tick marks on finally! One last question: I am supposed to make bins in 1, 2 and 5 mm increments for fish up to 170 mm. I assume these are the breaks? So breaks = 170 for 1 mm and 340 for 2 mm and 1550 for 5 m

Re: [R] segfault during example(svm)

2011-02-19 Thread rose
Hi Peter, Quoting Peter Ehlers : On 2011-02-18 12:32, Juergen Rose wrote: Am Freitag, den 18.02.2011, 11:53 -0800 schrieb Peter Ehlers: On 2011-02-18 11:16, Juergen Rose wrote: If do: library("e1071") example(svm) I get: svm> data(iris) svm> attach(iris) svm> ## classification m

[R] Joiny probability with R

2011-02-19 Thread danielepippo
Hi, I have two vector with the marginal distribution like this: > a [1] -0.419 -0.364 -0.159 -0.046 -0.010 -0.002 0.000 0.000 0.000 > b [1] 0.125 0.260 0.270 0.187 0.097 0.041 0.014 0.004 0.001 How can I calculate the joint distribution with R? Thank you to all Dan -- View this message i

[R] lmer, MCMCsamp and ranef samples?

2011-02-19 Thread Jukka Koskela
I really hope sombody could help me with the following, I'm having problems accessing the random effect samples following the example on MCMCsamp: (fm1 <- lmer(Reaction ~ Days + (1|Subject) + (0+Days|Subject), sleepstudy)) set.seed(101); samp0 <- mcmcsamp(fm1, n = 1000, saveb=TRUE) str(samp

[R] CHANGE OF SUMISSION ADDRESS, ASA John M. Chambers Statistical Software Award - 2011

2011-02-19 Thread Fei Chen
A reminder that submission deadline for John Chambers Award is Monday 2/21. Also please note my email address has changed. Please submit your material to fch...@its.jnj.com Thank you. From: f...@live.com To: r-help@r-project.org Subject: ASA John M. Chambers Statistical Software Award - 2011 D

Re: [R] Hartley's table

2011-02-19 Thread Peter Ehlers
On 2011-02-16 06:08, Silvano wrote: Hi, I used the commands below to make Hartley's table, but some values are NA. You might want to contact the maintainer of SuppDists (cc'd). Presumably, the C code uses inappropriate starting values for those cases. Meanwhile, here's a simpler way to genera

Re: [R] Confidence Intervals on Standard Curve

2011-02-19 Thread Ben Ward
I've just realised the couple of graphs I put on here have been stripped off. If anyone has to see them and can't see my problem from code, I can send them directly to anyone who thinks they can help but wants to see them. Thanks, Ben W. On 18/02/2011 23:29, Ben Ward wrote: Hi, I wonder if an

[R] Building an array from matrix blocks

2011-02-19 Thread Eduardo de Oliveira Horta
Hello, I've googled for a while and couldn't find anything on this topic: say I have a matrix A and want to build matrices B1, B2,... using blocks from A (or equivalently an array B with B[,,i] being a block from A), and that I must sum the B[,,i]'s. I've come up with this rather non-elegant code

Re: [R] Joiny probability with R

2011-02-19 Thread David Winsemius
On Feb 19, 2011, at 5:47 AM, danielepippo wrote: Hi, I have two vector with the marginal distribution like this: a [1] -0.419 -0.364 -0.159 -0.046 -0.010 -0.002 0.000 0.000 0.000 b [1] 0.125 0.260 0.270 0.187 0.097 0.041 0.014 0.004 0.001 How can I calculate the joint distribution w

Re: [R] When is *interactive* data visualization useful to use?

2011-02-19 Thread Liviu Andronic
On Fri, Feb 18, 2011 at 8:00 PM, Tom Hopper wrote: > Tal, > > One interactive capability that I have repeatedly wished for (but > never taken the time to develop with the existing R tools) is the > ability to interactively zoom in on and out of a data set, > I believe that you can do this with pla

[R] simple recoding problem, but a trouble !

2011-02-19 Thread Umesh Rosyara
Just a correction. My expected outdata frame was somehow distorted to a single, one column. So correct one is: marker1a markerb marker2amarker2b 11 1 1 13 1 3 33 3 3 33 3

[R] contrasting Somer's D from Design package

2011-02-19 Thread vikkiyft
Dear R help, I am having a problem with the Design package and my problem is detailed here. I fit a cox model to my data and validate the Somer's Dxy using the Design package. (Because of computation time problem, i only try 10 bootstrap samples for the time being) This is the model without str

Re: [R] RCurl HTTP Post ?

2011-02-19 Thread Duncan Temple Lang
On 2/17/11 3:54 PM, Hasan Diwan wrote: > According to [1] and [2], using RCurl to post a form with basic > authentication is done using the postForm method. I'm trying to post > generated interpolation data from R onto an HTTP form. The call I'm using is > page <- postForm('http://our.server.com/

Re: [R] simple recoding problem, but a trouble !

2011-02-19 Thread David Winsemius
On Feb 19, 2011, at 8:40 AM, Umesh Rosyara wrote: Just a correction. My expected outdata frame was somehow distorted to a single, one column. So correct one is: marker1a markerb marker2amarker2b 11 1 1 13 1 3

[R] reading simulations

2011-02-19 Thread garciap
Hi to all the people (again), I'm doing some simulations with the memisc package of an own function, but I've the problem that I didn't know how to read the result of such simulations. My function is: > Torre<-function(a1,N1,a2,N2) + {Etorre<-(a1*N1)/(1+a1*N1) + Efuera<-(a2*N2)/(1+a2*N2) + if(Et

Re: [R] [Rcpp-devel] Help with integrating R and c/c++

2011-02-19 Thread Douglas Bates
On Sat, Feb 19, 2011 at 12:56 AM, Rohit Pandey wrote: > Hi Christopher/ Dirk, > Thank you very much for your replys. I think the idea of using inline as you > suggest is the best way to start off with using c++ with R. I went through > your examples and also plenty I found on the net. I have been

Re: [R] reading simulations

2011-02-19 Thread David Winsemius
On Feb 19, 2011, at 10:35 AM, garciap wrote: Hi to all the people (again), I'm doing some simulations with the memisc package of an own function, but I've the problem that I didn't know how to read the result of such simulations. My function is: Torre<-function(a1,N1,a2,N2) + {Etorre<-(

Re: [R] Joiny probability with R

2011-02-19 Thread danielepippo
I'm sorry it was my mistake. The two vectors are found as: dpois(num,0.87) dpois(num,2.08) and represent the discrete density of 8 intervals (num=0:8). -- View this message in context: http://r.789695.n4.nabble.com/Joiny-probability-with-R-tp3314059p3314301.html Sent from the R help mailing l

Re: [R] Joiny probability with R

2011-02-19 Thread David Winsemius
On Feb 19, 2011, at 11:05 AM, danielepippo wrote: I'm sorry it was my mistake. The two vectors are found as: dpois(num,0.87) dpois(num,2.08) and represent the discrete density of 8 intervals (num=0:8). Is this homework? -- View this message in context: http://r.789695.n4.nabble.com/Joi

[R] little help with Nonlinear regression needed

2011-02-19 Thread Paka yag
Hello as the subject says I need a little help with following nonlinear regression y(t) = a + b*x(t-1)+c*y_(t-1)+G*(a+b*x_(t-1)) where G=[1 + exp(-s(x_(t-1) - k)]^(-1) (In reality there are more variables) Please could anybody give me a hint how I can estimate this?? Should I use nls()? w

Re: [R] Joiny probability with R

2011-02-19 Thread Ted Harding
On 19-Feb-11 14:48:53, David Winsemius wrote: > On Feb 19, 2011, at 5:47 AM, danielepippo wrote: >> Hi, >>I have two vector with the marginal distribution like this: >>> a >> [1] -0.419 -0.364 -0.159 -0.046 -0.010 -0.002 0.000 0.000 0.000 >>> b >> [1] 0.125 0.260 0.270 0.187 0.097 0.041 0.01

[R] problem in plotting numeric x by POSIXt class with lattice

2011-02-19 Thread Aviad Klein
# hi all, # I'm trying to plot temperatures by date in a trellis plot by their stations # I'm plotting the following data.frame library(lattice) h <- structure(list(station_name = structure(c(3L, 4L, 2L, 10L, 11L, 12L, 6L, 7L, 5L, 8L, 9L, 3L, 4L, 2L, 10L, 11L, 12L, 6L, 7L, 5L, 8L, 9L, 3L, 4L, 2

Re: [R] problem in plotting numeric x by POSIXt class with lattice

2011-02-19 Thread David Winsemius
On Feb 19, 2011, at 11:44 AM, Aviad Klein wrote: # hi all, # I'm trying to plot temperatures by date in a trellis plot by their stations # I'm plotting the following data.frame library(lattice) h <- structure(list(station_name = structure(c(3L, 4L, 2L, 10L, 11L, 12L, 6L, 7L, 5L, 8L, 9L, 3L,

Re: [R] Joiny probability with R

2011-02-19 Thread Gabor Grothendieck
On Sat, Feb 19, 2011 at 11:30 AM, Ted Harding wrote: > On 19-Feb-11 14:48:53, David Winsemius wrote: >> On Feb 19, 2011, at 5:47 AM, danielepippo wrote: >>> Hi, >>>    I have two vector with the marginal distribution like this: a >>> [1] -0.419 -0.364 -0.159 -0.046 -0.010 -0.002  0.000  0.000

Re: [R] help files

2011-02-19 Thread Uwe Ligges
On 19.02.2011 06:08, Erin Hodgess wrote: Dear R People: I downloaded the binary for R-2.12.1 on Windows 7. When checking help files, I got the following: ?mean starting httpd help server ... done Error in shell.exec(url) : problem in displaying 'http://127.0.0.1:16945/library/base/html/

Re: [R] multiple regression plane

2011-02-19 Thread Uwe Ligges
On 18.02.2011 11:02, Rosario Garcia Gil wrote: Hello I have a multiple linear regression with two cofactors, I would like to represent a plane but I could not find any help which worked out. Any suggestions. One way is explained in: library("scatterplot3d") ?scatterplot3d Now see example

Re: [R] Integration with an Indicator Function in R

2011-02-19 Thread Uwe Ligges
On 17.02.2011 22:10, li li wrote: Hi all, I have some some problem with regard to finding the integral of a function containing an indicator function. please see the code below: func1<- function(x, mu){ (mu^2)*dnorm(x, mean = mu, sd = 1)*dgamma(x, shape=2)} m1star<- function(x){ int

Re: [R] [Rcpp-devel] Help with integrating R and c/c++

2011-02-19 Thread Rohit Pandey
Hi Douglas, Sorry for leaving that information out earlier. I am running windows XP. I'm not sure about the tools you mention. I thought installing the packages in R was enough. Are these tools like a program you install? The results of running sessionInfo() are: R version 2.12.1 (2010-12-16) P

Re: [R] Confidence Intervals on Standard Curve

2011-02-19 Thread Ben Ward
Hi Graham, Thanks, that does explain lots. I've been playing with making log's of data in models to make the relationship linear, which it does, which suggests to me that lm() is the right way to go, however, after if try to predict after y values after about 60% on the x axis for light trans

[R] Sample function in R???

2011-02-19 Thread Hongwei Dong
Hi, R users, I'm wondering if there a way in R I can select cases based on a probability vector. if a case is selected, that case is marked as 1, otherwise, 0. For example: x<-12:18 y<-1:7 sample(x,2,replace=FALSE,y) I got: [1] 15 17 What I want to see is: [1] 0 0 0 1 0 1 0 Thanks. Gary

Re: [R] Confidence Intervals on Standard Curve

2011-02-19 Thread David Winsemius
On Feb 19, 2011, at 1:08 PM, Ben Ward wrote: Hi Graham, Thanks, that does explain lots. I've been playing with making log's of data in models to make the relationship linear, which it does, which suggests to me that lm() is the right way to go, however, after if try to predict after y valu

Re: [R] multiple regression plane

2011-02-19 Thread David Winsemius
On Feb 19, 2011, at 12:03 PM, Uwe Ligges wrote: On 18.02.2011 11:02, Rosario Garcia Gil wrote: Hello I have a multiple linear regression with two cofactors, I would like to represent a plane but I could not find any help which worked out. Any suggestions. One way is explained in: l

Re: [R] Sample function in R???

2011-02-19 Thread Peter Ehlers
On 2011-02-19 10:32, Hongwei Dong wrote: Hi, R users, I'm wondering if there a way in R I can select cases based on a probability vector. if a case is selected, that case is marked as 1, otherwise, 0. For example: x<-12:18 y<-1:7 sample(x,2,replace=FALSE,y) I got: [1] 15 17 What I want to s

[R] Porting existing Java GUI to R

2011-02-19 Thread Roy Mendelssohn
Hi All: we have an existing GUI written in Java that allows users to access a slew of remote satellite and other environmental data. The GUI allows the use to browse the source, select the dataset, time and spatial extent of the data, and then obtain that subset. There is a standalone version

Re: [R] Confidence Intervals on Standard Curve

2011-02-19 Thread Ben Ward
Hi David, I had use log(x)inside the lm call and used predict, although I didn't know about logs of data making a multiplacative model exp(log(x)+log(y)) = x*y. I'll have a look at the poisson model. and see what I manage to produce. Looking at the internet the Cumulative distribution functio

Re: [R] reading simulations

2011-02-19 Thread Peter Ehlers
On 2011-02-19 07:35, garciap wrote: Hi to all the people (again), I'm doing some simulations with the memisc package of an own function, but I've the problem that I didn't know how to read the result of such simulations. My function is: Torre<-function(a1,N1,a2,N2) + {Etorre<-(a1*N1)/(1+a1*N

Re: [R] ggplot2, 'se' variable in geom_errorbar's limits?

2011-02-19 Thread Eric Fail
Can't anybody give me a hint on how to solve this? I even bought the ggplot2-book, so you could also give a page (or a series of pages). Thanks, Eric On Thu, Feb 17, 2011 at 10:19 AM, Eric Fail wrote: > > Dear R-list > > I'm working with with geom_errorbar; specifically I'm trying to > reproduce

[R] Conditional recoding

2011-02-19 Thread Krishnan Viswanathan
I am trying to recode a variable into another variable and while the package 'car' works well when it is only recoding A into B, I am not sure I can do the same with recoding (A or C) into B. If i can use recode please advise on how to. So i am using an if/else if conditions. My sample dataset is

[R] Seeking help in Package development

2011-02-19 Thread Nipesh Bajaj
Dear all, I am a new user of R and currently trying hard to develop my own package. Here I am following this tutorial 'http://www.mathfinance.cn/how-to-create-an-R-package-in-windows/' Here it says that (step 8): "open a “command prompt” window, change the directory to where your package is, type

Re: [R] Seeking help in Package development

2011-02-19 Thread Gabor Grothendieck
On Sat, Feb 19, 2011 at 4:39 PM, Nipesh Bajaj wrote: > Dear all, I am a new user of R and currently trying hard to develop my > own package. Here I am following this tutorial > 'http://www.mathfinance.cn/how-to-create-an-R-package-in-windows/' > > Here it says that (step 8): "open a “command promp

[R] barplot, different color for shading lines and bar

2011-02-19 Thread Markus Loecher
Dear all, might there be a modified barplot function out there which allows the user to specify a fill color for the bars and independent parameters for the overlaid shading lines ? Currently, when I specify density and col, the fill color for the bars is white. Thanks! Markus [[alternat

Re: [R] Seeking help in Package development

2011-02-19 Thread Joshua Wiley
Dear Nipesh, On Sat, Feb 19, 2011 at 1:39 PM, Nipesh Bajaj wrote: > Dear all, I am a new user of R and currently trying hard to develop my > own package. Here I am following this tutorial > 'http://www.mathfinance.cn/how-to-create-an-R-package-in-windows/' > > Here it says that (step 8): "open a

[R] Accessing DF index

2011-02-19 Thread eric
I have a dataframe called x2. It seems to have a date column but I can't access it or give it a name or convert it to a date. How do I refer to that first column and make it a date ? When I try x2[1,] I get the second column. head(x2) FAIRXSP500delta 2000-08-31

Re: [R] Conditional recoding

2011-02-19 Thread David Winsemius
On Feb 19, 2011, at 4:36 PM, Krishnan Viswanathan wrote: I am trying to recode a variable into another variable and while the package 'car' works well when it is only recoding A into B, I am not sure I can do the same with recoding (A or C) into B. If i can use recode please advise on how

Re: [R] Accessing DF index

2011-02-19 Thread David Winsemius
On Feb 19, 2011, at 4:50 PM, eric wrote: I have a dataframe called x2. It seems to have a date column but I can't access it or give it a name or convert it to a date. How do I refer to that first column and make it a date ? When I try x2[1,] I get the second column. It is not actually

Re: [R] Seeking help in Package development

2011-02-19 Thread Nipesh Bajaj
Thanks Gabor for your input. Here what I have done is that: 1. Copy 'MyPackage' folder (developed by package.skeleton) into 'C:\Program Files\R\R-2.12.1\bin' (I found R.exe is there) 2. In the command prompt, I changed the working directory using "CD" command and run 'R CMD build MyPackage' 3. I

Re: [R] Conditional recoding

2011-02-19 Thread David Winsemius
On Feb 19, 2011, at 5:14 PM, David Winsemius wrote: On Feb 19, 2011, at 4:36 PM, Krishnan Viswanathan wrote: I am trying to recode a variable into another variable and while the package 'car' works well when it is only recoding A into B, I am not sure I can do the same with recoding (A or

Re: [R] Accessing DF index

2011-02-19 Thread eric
So how would I convert those row names to dates and give that column the name "Date" so that I can use subset and other functions on the Date column ? -- View this message in context: http://r.789695.n4.nabble.com/Accessing-DF-index-tp3314649p3314689.html Sent from the R help mailing list archiv

Re: [R] Accessing DF index

2011-02-19 Thread David Winsemius
On Feb 19, 2011, at 5:25 PM, eric wrote: So how would I convert those row names to dates and give that column the name "Date" so that I can use subset and other functions on the Date column ? > x2$dtcol <- as.Date(rownames(x2)) > x2 FAIRXSP500delta

Re: [R] Accessing DF index

2011-02-19 Thread David Winsemius
On Feb 19, 2011, at 5:25 PM, eric wrote: So how would I convert those row names to dates and give that column the name "Date" so that I can use subset and other functions on the Date column ? You could have used subset without the new column: > subset(x2, rownames(x2) < "2000-11-30")

Re: [R] ggplot2, 'se' variable in geom_errorbar's limits?

2011-02-19 Thread Ista Zahn
Hi Eric, It's not really a ggplot question. If you are plotting means you can calculate the standard error as sd/sqrt(n). Then add and subtract the standard error to create ymax and ymin. Best, Ista On Sat, Feb 19, 2011 at 9:12 PM, Eric Fail wrote: > Can't anybody give me a hint on how to solve

Re: [R] Seeking help in Package development

2011-02-19 Thread Gabor Grothendieck
On Sat, Feb 19, 2011 at 5:31 PM, Nipesh Bajaj wrote: > Thanks Gabor for your input. Here what I have done is that: > > 1. Copy 'MyPackage' folder (developed by package.skeleton) into > 'C:\Program Files\R\R-2.12.1\bin' (I found R.exe is there) > > 2. In the command prompt, I changed the working di

Re: [R] Seeking help in Package development

2011-02-19 Thread Nipesh Bajaj
Hi Gabor, can you be more detail on step 01? Is that not the correct path for R.exe? But I found it there. When I ran R CMD build MyPackage then actually got these warnings: cygwin warnings: MS-DOS style path detected: c:/Program Files/R/R-2.12.1/bin/Mypackage_1.0.tar prefered POSIX equivalent is

Re: [R] ggplot2, 'se' variable in geom_errorbar's limits?

2011-02-19 Thread Eric Fail
Hi Scott, Thank you for taking the time to look at my problem! I played around with your example and realized that in solving the problem with limits by summarizing the data I loose the option to split the data along some third variable, say the 'color' variable in the diamonds data. Any idea on

Re: [R] Seeking help in Package development

2011-02-19 Thread Gabor Grothendieck
On Sat, Feb 19, 2011 at 6:19 PM, Nipesh Bajaj wrote: > Hi Gabor, can you be more detail on step 01? Is that not the correct > path for R.exe? But I found it there. > > When I ran R CMD build MyPackage then actually got these warnings: > cygwin warnings: > MS-DOS style path detected: c:/Program Fil

Re: [R] ggplot2, 'se' variable in geom_errorbar's limits?

2011-02-19 Thread Ista Zahn
Hi Eric, Again, it's not really a ggplot question. If you want to plot separately by color, you need to calculate means and standard errors separatly by color also: data(diamonds) diamonds_df <- ddply(diamonds, .(cut, color), summarise, mean_price = mean(price),

[R] Extreme Values - Help with GPD function

2011-02-19 Thread aleiche
Hi, I'm a second year Master's student in Applied Statistics. I am doing a project using average weekly U.S. regular gasoline prices (in cents, per gallon) from an Excel file (from the years 1990- May 2010). I want to find the probability that the average weekly U.S. regular gasoline pric

Re: [R] ggplot2, 'se' variable in geom_errorbar's limits?

2011-02-19 Thread Eric Fail
Thank you Scott and Ista, I really appreciate your help! I solved it with Scott's help on the ddply. For the record, here is the working example that solves my initial question: ## install.packages(c("ggplot2", "plyr")) require(ggplot2) data(diamonds) diamonds <- diamonds[1:100,c(2,7)] # use dd

Re: [R] Scaling Lattice Graphics for tikzDevice

2011-02-19 Thread Elliot Joel Bernstein
On Feb 18, 2011 11:02 PM, "Deepayan Sarkar" wrote: > > On Fri, Feb 18, 2011 at 11:04 PM, Elliot Joel Bernstein > wrote: > > I'm trying to use lattice graphics to produce some small plots for inclusion in a LaTeX file. I want the LaTeX fonts to be used in the plots, but to be scaled down to match

[R] Random Forest & Cross Validation

2011-02-19 Thread ronzhao
Hi, I am using randomForest package to do some prediction job on GWAS data. I firstly split the data into training and testing set (70% vs 30%), then using training set to grow the trees (ntree=10). It looks that the OOB error in training set is good (<10%). However, it is not very good for th

[R] Partial italic in graph titles when looping

2011-02-19 Thread Josh B
Dear all, I have a rather complicated problem. I am trying to loop through making graphs, so that the graph-making process is fully automated. For each graph, I'd like to make sure the corresponding title is formatted properly. The titles will be a combination of a gene name and numerical posi

Re: [R] Partial italic in graph titles when looping

2011-02-19 Thread David Winsemius
On Feb 19, 2011, at 7:41 PM, Josh B wrote: Dear all, I have a rather complicated problem. I am trying to loop through making graphs, so that the graph-making process is fully automated. For each graph, I'd like to make sure the corresponding title is formatted properly. The titles will b

Re: [R] Partial italic in graph titles when looping

2011-02-19 Thread David Winsemius
On Feb 19, 2011, at 7:41 PM, Josh B wrote: Dear all, I have a rather complicated problem. I am trying to loop through making graphs, so that the graph-making process is fully automated. For each graph, I'd like to make sure the corresponding title is formatted properly. The titles will b

Re: [R] simple recoding problem, but a trouble !

2011-02-19 Thread David Winsemius
On Feb 19, 2011, at 10:19 PM, Umesh Rosyara wrote: Thank you David I was able to create dataframe and restore names with the following: dfr1 <- data.frame(t( apply(dfr, 1, func) )) names(dfr1) <- c("marker1a","marker1b", "marker2a", "marker2b" ,"marker3a", "marker3b") Still I wonder if the

[R] loop with model fitting pair of consecutive pair of variable: mailing all of you because it was last option

2011-02-19 Thread John Clark
Dear R-users and experts I want to create to analyse my data which looks like follows:( I have show only 8 variables but original variables much more number >1000) *sub* *ydata* *X1* *X2* *X3* *X4* *X5* *X6* *X7* *X8* 1 12 1 1 1 2 1 1 1 1 2 13 2 2 1 2 2 1 1 1 3 11

[R] problem installing R in Ubuntu 10.04 -HELP

2011-02-19 Thread fdp
I am running Ubuntu 10.04 (on a Windows machine with dual boot) and I having a very hard time trying to recover from what I initially thought was a minor problem. I was trying to install "rattle()" and it failed, and after that I cannot get R to run AT ALL! I've tried multiple times to reinstall it

Re: [R] simple recoding problem, but a trouble !

2011-02-19 Thread Umesh Rosyara
Thank you David I was able to create dataframe and restore names with the following: dfr1 <- data.frame(t( apply(dfr, 1, func) )) names(dfr1) <- c("marker1a","marker1b", "marker2a", "marker2b" ,"marker3a", "marker3b") Still I wonder if there is easier way to restore the names, in situations

[R] Generating uniformly distributed correlated data.

2011-02-19 Thread Søren Faurby
I wish to generate a vector of uniformly distributed data with a defined correlation to another vector The only function I have been able to find doing something similar is corgen from the library ecodist. The following code generates data with the desired correlation to the vector x but

Re: [R] simple recoding problem, but a trouble !

2011-02-19 Thread David Winsemius
On Feb 19, 2011, at 10:28 PM, David Winsemius wrote: On Feb 19, 2011, at 10:19 PM, Umesh Rosyara wrote: Thank you David I was able to create dataframe and restore names with the following: dfr1 <- data.frame(t( apply(dfr, 1, func) )) names(dfr1) <- c("marker1a","marker1b", "marker2a", "

Re: [R] Generating uniformly distributed correlated data.

2011-02-19 Thread David Winsemius
On Feb 19, 2011, at 9:17 PM, Søren Faurby wrote: I wish to generate a vector of uniformly distributed data with a defined correlation to another vector The only function I have been able to find doing something similar is corgen from the library ecodist. The following code generates dat

Re: [R] Generating uniformly distributed correlated data.

2011-02-19 Thread Peter Langfelder
On Sat, Feb 19, 2011 at 6:17 PM, Søren Faurby wrote: > I wish to generate a vector of uniformly distributed data with a defined > correlation to another vector > > The only function I have been able to find doing something similar is corgen > from the library ecodist. > > The following code gener

Re: [R] Generating uniformly distributed correlated data.

2011-02-19 Thread Jorge Ivan Velez
Hi Soren, Take a look at http://tolstoy.newcastle.edu.au/R/help/05/07/7741.html HTH, Jorge On Sat, Feb 19, 2011 at 9:17 PM, Søren Faurby <> wrote: > I wish to generate a vector of uniformly distributed data with a defined > correlation to another vector > > The only function I have been able

Re: [R] Seeking help in Package development

2011-02-19 Thread Joshua Wiley
Hi Nipesh, Although "c:/Program Files/R/R-2.12.1/bin/" may be where R.exe is located, it is not where you want to locate your package, and, as Gabor pointed out, it is best to keep your package outside of the main R tree. Your package does not need to be in the same location as R.exe, you just ne

Re: [R] Accessing DF index

2011-02-19 Thread Prof Brian Ripley
On Sat, 19 Feb 2011, David Winsemius wrote: On Feb 19, 2011, at 4:50 PM, eric wrote: I have a dataframe called x2. It seems to have a date column but I can't access it or give it a name or convert it to a date. How do I refer to that first column and make it a date ? When I try x2[1,] I get