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Off topic:Spam on R help increase?
kate editor for R
Install RMySQL with R 2 4 0
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Re: R package development in windows BayesianFilter detected
Statitics Textbook any recommendation?
to draw a smooth arc
regular expression
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help comparing two median with R
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lattice and several groups
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R package development in windows
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Debugging R 's code: boxplot stats
A function for raising a matrix to a power?
subset
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[R] Timings of function execution in R [was Re: R in Industry]
acos(0 5) == pi/3 FALSE
Help with interfacing C & R
R and clinical studies
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multinomial logistic regression with equality constraints?
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can I get same results using lme and gls?

Hi All I was wondering how to get the same results with gls and lme. In my lme the design matrix for the random effects is (should be) a identity matrix and therefore G should add up with R to pro

How to compare linear models with intercept and those without intercept usin

Dear R-list I apologize for my many emails but I think I know how to desctribe my problem differently and more clearly. My question is how to compare linear models with intercept and those without

Why a multi column, tab delimited file has only one column after reading

Are you sure that there are tabs? try sep " " ?read.table seems to say that this should work Otherwise try read.delimited. --- Yong Wang <wangyong1@(protected) > wrote > Dear all > I have a t

Why a multi column, tab delimited file has only one column after reading in

Dear all I have a tab delimited file as following AGE WEIGHT PROTEIN ........ 6 20 3 ........ 8 39 4 ........ I tried to read it as following data <- read.table(file sep "\t " header T) bu

Testing multidimensional random numbers?

Dear Statistics-Experts Assume you have given a new and untested pseudo-random number generator (prng) and you want to test if it "works ". The distribution function (cdf) from which the prng is

Running an R script without running R

Is there any way to run an R script without running R? As an example suppose I have a tcl/tk interface that asks for a number (in a GUI) and displays its factorial. Is there a way to invoke this scr

basic math question?

This seems like it 's easy but I can 't seem to get it. My equation is (a^b)/c d. I know that I can solve for b via log(d*c) / log(a) b However I don 't really have d in the first place

Number of NA 's in every second column

Hi R-users How do I calculate a number of NA 's in a row of every second column in my data frame? As a starting point dfr <- data.frame(sapply(x function(x) sample(0 x 6 replace TRUE))) dfr[df

lattice contourplot error

Hello A weird thing is happening to me. I have a 128x128 elements matrix m with values between 0 and 1. If I do R > library(lattice) R > contourplot (m cuts 9) I get the following error

Problems accessing Rconnect

Hi. I nearly have Rserve working.... I have the dialog box which says.. Rserve Ok read to answer queries. Having read all i can find I followed the guidance given on http //rosuda.org/Rserve/ex

miktex 2.6 and R

Hi I am new to Latex and in the process of installing miktex to work with R on windows XP professional. From earlier posts I see that fptex was the preferred version but it is no longer availa

Kolmogorov-Smirnov GoF test

Hi! I want to do a ks.test of some sample data say "x " against a theoretical distribution e.g. a Weibull. So suppose we have these data set.seed(1) x <- rweibull( 200 1.3 8.7 ) 1. Is it be

optional fields in function declarations; Solved

thank you to both Adaikalavan and Patrick. on the basis of Adaikalavan example this is an example that point out my problems. >log_raise function(num exp base){return(log(num^exp base))} I woul

creating a multivariate set of variables with givenintercorrelations

Dear Dimitri if you wish single the correlations can use the following script a <-1 10 b <- rnorm(10) c <- rbinom(10 8 0.3) d <- rpois(10 8) corr <-cor( cbind(a b c d) ) round(as.dist(corr) 2) # or

creating a multivariate set of variables with given   intercorrelations

I presume you want to generate normally or t-distributed values ? If so either have a look mvrnorm in the MASS package or the mvtnorm package. Dimitri Liakhovitski wrote > Hi! > I was wondering i

creating a multivariate set of variables with given intercorrelations

Hi! I was wondering if there is a package in R that allows one to create a multivariate data set with pre-specified intercorrelations among variables e.g. a set of 4 variables (with a length of N ea

clustered standarderrors using design package

Please help I have a strange problem. I 've got a balanced panel data set. I use dummy variable regression and I 've got results with lm function. summary(lm(y ~ post + t19961 + t19962 + t19963 + t19

Sensitivity and specificity in multi-class problems

Hi I 'm relative new to R. I 'm looking for a convenient way to calculate sensitivity and specificity in machine-learning models (SVM ...). In a two-class case it 's quite simple by calculating the TP

simple plotting question

Hi I have a very simple question which I can 't see how to figure out. Basically I have a matrix of plots but I want no margin space in between them. I want a wide right margin (outside of the b

optional fields in function declarations

Dear R users I need to create a set of function to solve some tasks. I want to leave the operator to decide whether uses default parameters or change it so the functions may have some optional fiel

Rserve() ?

Hi I have also tried to install the Rserve package on my machine. I am able to load with with library(Rserve) but when I trype Rserve() to start the server I get the following message > Rserve()

density

Hello I have a n*2 matrix called "plan " which contains n observations from 2 variates. I want a kernel density estimate of the joint distribution of these 2 variates. I try density(plan). Un

What 's wrong with my code ?

I try to code the ULS factor analysis descrbied in ftp //ftp.spss.com/pub/spss/statistics/spss/algorithms/ factor.pdf # see PP5-6 factanal.fit.uls <- function(cmat factors start NULL lower 0.005

SJava installation

Hi. I have downloaded SJava from http //www.omegahat.org/RSJava/ as well as all of the tools required. I have done exactly what is said on that page as well as http //www.murdoch-sutherland.com/Rtoo

displaying intensity through opacity on an image (ONE SOLUTION)

Dear list I did not get any response yet but after looking around R and other things I came up with something that works. Basically I use the rgb() function in R [though I could also use the hs

graphics on Ubunut

On 18 May 2007 at 20 25 Erin Hodgess wrote | Dear R People | | I 'm working with R on the latest version of Ubuntu. | | However I can 't get graphics to appear even with the | simplest plot comm

penalized maximum likelihood estimator

Dear r helper are their any package in R in which i can find penalized maximum likelihood estimator with beta pdf from generalized extreme value distribution? i tried to find out the package from CRA

graphics on Ubunut

Dear R People I 'm working with R on the latest version of Ubuntu. However I can 't get graphics to appear even with the simplest plot commands. Has anyone run into that please? I 'm using R-2.5.

my ugly apply/sweep code needs help

Hi I have a matrix of data from from several groups. I need to center the data by group subtracting the group median from each value initially for two groups at a time. I have a working function t

How can we add a legend to a set of graphs?

Hi I have a set of 4 graphs and I need to add a legend that is shared by those 4 graphs. This is what I tried >locator(1) # I placed the cursor in the center of the 4 graphs $x [1] 9.299001 $y
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