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99 results for “from:heberto ghezzo”

problems with rJava
R Heberto Ghezzo, Dr · Nov 19, 2010 · r-help

Hello, using r-2.12.0 on a Toshiba laptop with Win7 I am trying to install JGR, iut installs OK but when loading, complains about rJava so I did: > install.packages("rJava") Installing package(s) into ?I:\R\cran...

crosstabulation of means
R Heberto Ghezzo, Dr · May 23, 2002 · r-help

Hello, I am trying to print a crosttabulation of mean,sd,n for a continuous variable crossclassified by anoother/s grouping variables. I came up with: xtab2 <- function(x,g1,g2) { funy <- function(z) list(mean(z,na.rm=T...

reformat data for time-varying Cox
R Heberto Ghezzo, Dr · Jul 27, 2005 · r-help

Hello, using R2.1.1 in Win XP I have data in the format .. ID , DateOfEntry, Drug0, DateVisit1, Drug1, DateVisit2, Drug2, DateOfDeath .. The DateOfDeath can be 999 if the patient is still alive at end of study. The number of...

Exact conf. interval for one proportion
R Heberto Ghezzo, Dr · Sep 11, 2001 · r-help

> Just in the last American Statistician a paper by Robert G. Newcombe(AS 55-3 Aug 2001 p200-2 "The Wilson limits for logit(pi) can be expressed as logit(p)+- arcsinh(z/(2*sqrt(n.p.q)) He refers...

problem with BRugs
R Heberto Ghezzo, Dr · Aug 24, 2009 · r-help

Hello, I am sorry, I have this problem before and Uwe send me the answer but I misplaced it and can not find it. writing a model for BRugs > library(BRugs) Loading required package: coda Loading required package: lattice Welcome...

how to use try()
R Heberto Ghezzo, Dr · Feb 9, 2004 · r-help

Hello, I have a program with this section: .. for(i in 1:20){ lo <- nls(y~y0+a/(1+(x/x0)^b),start=list(y0=0.1,a=a0,x0=x00,b=-8.1)) beta[i] <- lo$m$getPars()[4...

scan()
R Heberto Ghezzo, Dr · Mar 19, 2001 · r-help

Hi. Thanks to all who offered a solution with my problem with scan. I read the helps pages but I did not understand the definition of 'stream'. if I say: my.file <- "c:/schrumpft.dat" x <- scan(my.file,nline...

sampling with weights
R Heberto Ghezzo, Dr · May 5, 2004 · r-help

Hello, I am trying to produce an example of weighted sampling vs uniform sampling, the subject is estimation of the size distribution by sampling from a micrograph with a graticule of points. The sampling obtained is thus area weighted. I...

Very OT: World Cup Statistics
R Heberto Ghezzo, Dr · Jun 8, 2010 · r-help

The only goals I remember are that the "Hand of God" was at 6 min second period and the "Goal of the Century" at 11 min second period The others dont count. HG ________________________________________ From: r-help-bounces at r-project...

compiling packages
R Heberto Ghezzo, Dr · Jun 4, 2002 · r-help

Hello, Using R 1051 in win98 When I try to build a library Addreg with DESCRIPTION, Index and Title in R and subdirectories Man and R. From a Command window I do: c:\> c:\rw1051\bin\Rcmd INSTALL c:\r...

library dll's dont load
R Heberto Ghezzo, Dr · Jul 25, 2000 · r-help

Hi R experts, Can somebody suggest what can be wrong? PIII with 128 Mb RAM Using R 1.1 in Win98, the latest version downloaded yesterday. I run update.packages so 'survival', ' mass', and 'nlme' are the latest versions in...

problems with by()
R Heberto Ghezzo, Dr · Jan 29, 2003 · r-help

Hello, another problem. > x<-rep(1,10) > y<-rep(c(1,2),c(5,5)) > z<-seq(1:10) > ab<-data.frame(x,y,z) # now I want to do some work by the value of 'y' > by(ab,y...

reading big arrays from C
R Heberto Ghezzo, Dr · Mar 29, 2001 · r-help

hello. I am trying to read a big file with different sections each with a different format, actually it is a map in format *.e00 of MapView. I can read the whole file with no problems from R using scan...

help with a regression problem
R Heberto Ghezzo, Dr · Aug 1, 2012 · r-help

Hello, I have a big data frame where consecutive time dates and corresponding observed values for each subject (ID) are on a line. I want to compute the linear slope for each subject. I would like to use apply but...

problems compiling packages in R 2.0.0
R Heberto Ghezzo, Dr · Oct 14, 2004 · r-help

Hello, I am trying to get my old packages to work in R 2.0.0 in Windows XP. Here is what I did Etc is a package of pure R functions Rcmd INSTALL -l c:/R/R_Src/library...

grid
R Heberto Ghezzo, Dr · May 23, 2001 · r-help

Hello I am working on Win98 with R 1.2.3 and gcc 295 mingw32msvc. I try to compile grid_0.1.tar.gz with the command rw1023\bin\Rcmd INSTALL --library=./r_src/library ./r_src/src/cran/grid...

problems with max.col()
heberto ghezzo · Apr 24, 2003 · r-help

Hello, I think the following qualify as a bug given: x<-c(1,2,3,4,2,4,2,2,4,2,2,2,4,3,2,1) z<-embed(x,4) z [,1] [,2] [,3] [,4] [1,] 4 3...

problems with max.col ()
R Heberto Ghezzo, Dr · Apr 24, 2003 · r-help

Hello, I think the following qualify as a bug given: x<-c(1,2,3,4,2,4,2,2,4,2,2,2,4,3,2,1) z<-embed(x,4) z [,1] [,2] [,3] [,4] [1,] 4 3...

Sweave
R Heberto Ghezzo, Dr · Feb 12, 2010 · r-help

Hello, I am trying to start using Sweave. I copy the example from help Sweave testfile <- system.file("Sweave", "Sweave-test-1.Rnw", package = "utils") ## enforce par(ask=FALSE) options(device.ask.default=FALSE) ## create a LaTeX file Sweave(testfile...

problems with playwith
R Heberto Ghezzo, Dr · Mar 1, 2011 · r-help

hello, i tried to run playwith but : > library(playwith) Loading required package: lattice Loading required package: cairoDevice Loading required package: gWidgetsRGtk2 Loading required package: gWidgets Error in inDL(x, as.logical(local), as.logical(now), ...) : unable to load shared object...

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