similar to: Managing R objects with 'make'

Displaying 20 results from an estimated 6000 matches similar to: "Managing R objects with 'make'"

2012 Mar 24
1
Append to file in loop
My files are on disk and they are regular text files named file_1 file_2 file_3 file_4 and file_5 with extension .saam The separator is sep='' (ie, white space) I want to append 'XFile' at the end of those files. XFile is also on disk. file.append("file_1.saam", "XFile.saam"); file.append("file_2.saam", "XFile.saam")... works but it
2012 Mar 23
1
Append to files in loop
Hi ReXperts, I have a file 'XFile' that I wish to append to the end of file1, file2, file3, file4, and file 5. Can't figure out how to set up the loop. Please help. Thank you, -- Luisin Galindo, PhD Director, Departamento de Medicina Matematica Centro de Estudios Avansados en Simulacion, Analysis, y Modelacion Puerto Castilla, Spanish Honduras Centro America [[alternative HTML
2000 Jan 23
1
size limits
Hi, I have a few questions about how to handle large data sets in R. What is the size of the largest matrix that R can comfortably deal with? Is this size limit imposed by R's software, or is it a question of the machine that one runs on? How does one go about choosing reasonable values of vsize and nsize? I have a data set with about 1,000,000 rows, and 30
2003 Mar 24
1
APC Modelling and the GLM function
Hi all Apologies for any cross posting. I have encountered a rather bizarre "problem" in Splus and R. I am using Age-Period-Cohort models to model cervical cancer and have run the same data on both R (v.1.4.1 & v1.6.2) and Splus (version 6.0). I used the same command line in both Splus and R: glm(cases~-1+as.factor(age)
2009 Jan 19
1
further notes on model.frame issue
This is a follow-up on my note of Saturday. Let me start with two important clarifications - I think this would be a nice addition, but I've had exactly one use for it in the 15+ years of developing the survival package. - I have a work around for the current case. Prioritize accordingly. The ideal would be to change survexp as follows: fit <- survexp( ~ gender,
2008 Mar 18
4
Overriding a file without causing duplicate definitions
Hello folks. I''ve got a problem that I can''t work out the solution to. My base workstation node definition says essentially: node base-workstation { file { etc-sudoers: name => "/etc/sudoers", ... } } This works fine, all of our workstations get a standardised sudoers file. However, I have one user on a workstation who needs a specialised sudoers file.
2011 Jan 13
1
What does the shell() command do?
Dear R community, I am trying to understand what the shell() function does. An example is: xfile <- shell(paste("dir/b ", paste(directory.folder,"file.name",sep="")),intern=T) I'm afraid I wasn't able to completely understand the explanation under the Help files. Thanks for your help! Leanne. -- View this message in context:
2007 Oct 29
12
Boolean expressions
I''m trying to write a wrapper definition for the file type to make it a bit smarter. I have a basic version working fairly well: define xfile($owner = root, $group = root, $mode = 644, $source, $backup = main, $recurse = false, $ensure = file) { file { $name: mode => $mode, owner => $owner, group => $group, backup => $backup, recurse
2012 Dec 07
2
Assigning cases to groupings based on the values of several variables
Dear R-ers, my task is to simple: to assign cases to desired groupings based on the combined values on 2 variables. I can think of 3 methods of doing it. Method 1 seems to me pretty r-like, but it requires a lot of lines of code - onerous. Method 2 is a loop, so not very good - as it loops through all rows of mydata. Method 3 is a loop but loops through fewer lines, so it seems to me more
1997 Jun 23
0
R-beta: R and Mac
Hello, Is there anyone using R in the Mac? If yes, my question is so simple. I have just started to use R ( I am a user of the Mac) and I would like to analyse a data, on a directory in my Mac, using R. How can I do to bring the data file to use it in R. I have tried like Splus, the function: mydata<-matrix(scan("data"),nrow=...,ncol=....) but it doesn't work. Thanks Halima
2005 Jul 19
1
S4 Dispatching
Is it possible for S4 to (continue) dispatch to a class created during dispatching? The code below doesn't work; is this not possible or have I ommitted something? Concept was to create a SEXP with R_AllocatePtr, give it a class attribute, and continue dispatch. Example code below omits multiple parameters that can be different types. Essentially, any parameter would be converted to an
2013 Dec 16
1
External pointers and changing SEXPTYPE
Dear Developers, I've been struggling through writing R extension in C. I've been using an external pointer to store my data (please see sample below). I encountered a very weird erroneous behaviour: when I tried to use my external pointer to a structure holding several types of data, including SEXPs, I discovered that SEXPs change their types between returning from initialization
2010 Apr 26
1
help with code
I am new to R and have tried for a good while to figure out how to code this in R. The dataset below: FTIStandKey State County FTITract CoverType Ver_CT V_Origin V_SpGrp NAH6005-001 Texas Jasper NAH6005 PPLB-2000-U PPLB-2000-U P P NAH6005-002 Texas Jasper NAH6005 NHHX-1950-O NHHX-1950-I N H NAH6253-001 Texas Tyler NAH6253 PPLB-2001-U PPLB-2001-U P P
2010 Apr 26
1
Help with replacement of certain values in dataset with SAS code equivalent
I am new to R and have tried for a good while to figure out how to code this in R. The dataset below: FTIStandKey State County FTITract CoverType Ver_CT V_Origin V_SpGrp NAH6005-001 Texas Jasper NAH6005 PPLB-2000-U PPLB-2000-U P P NAH6005-002 Texas Jasper NAH6005 NHHX-1950-O NHHX-1950-I N H NAH6253-001 Texas Tyler NAH6253 PPLB-2001-U PPLB-2001-U P P
2010 Apr 05
2
find the "next non-NA" value within each row of a data-frame
#I wish to find the "next non-NA" value within each row of a data-frame. #e.g. I have a data frame mydata. Rows 1, 2 & 3 have soem NA values. mydata <- data.frame(matrix(seq(20*6), 20, 6)) mydata[1,3:5] <-  NA mydata[2,2:3] <-  NA mydata[2,5] <-  NA mydata[3,6] <-  NA mydata[1:3,] #this loop accomplishes the task; I am tryign toi learn a "better" way for(i
2012 Jul 17
1
problem with function
Dear list, I have a problem with defining a function (see below) to read my testfile (see testfile). My function only returns mydata I wish to work with attr(mydata, 'fc') as well (for labelling a plot). Principally it works if I do not insist on this function but it would be much easer if it is possible to return mydata AND attr(mydata, 'fc') by using a function. 1) testfile:
2004 Mar 26
1
Mahalanobis
Dear all Why isn'it possible to calculate Mahalanobis distances with R for a matrix with 1 row (observations) more than the number of columns (variables)? > mydata <- matrix(runif(12,-5,5), 4, 3) > mahalanobis(x=mydata, center=apply(mydata,2,mean), cov=var(mydata)) [1] 2.25 2.25 2.25 2.25 > mydata <- matrix(runif(420,-5,5), 21, 20) > mahalanobis(x=mydata,
2011 Sep 10
0
npreg: plotting out of sample, extremely large bandwidths
Hello r-help, I am using the excellent np package to conduct a nonparametric kernel regression and am having some trouble plotting the results. I have 2 covariates, x1 and x2, and a continuous outcome variable y. I am conducting a nonparametric regression of y on x1 and x2. The one somewhat unusual feature of these data is that, to be included in the dataset, x1 must be at least as large as x2.
2008 May 16
1
xyplot: subscripts, groups and subset
I have stumbled across something in the Lattice package that is vexing me. Consider the code below: __________________________________________________________ library(lattice) myData <- expand.grid(sub = factor(1:16), time = 1:10) myData$observed <- rnorm(nrow(myData)) myData$fitted <- with(myData, ave(observed, sub, FUN = mean)) myData$event.time <- with(myData, ave(observed, sub,
2009 Sep 04
2
lrm in Design package--missing value where TRUE/FALSE needed
Hi, A error message arose while I was trying to fit a ordinal model with lrm() I am using R 2.8 with Design package. Here is a small set of mydata: RC RS Sex CovA CovB CovC CovD CovE 2 1 0 1 1 0 -0.005575280 2 2 1 0 1 0 1 -0.001959580 2 3 0 0 0 1 0 -0.004725880 2 0 0 0 1 0 0 -0.005504850 2 2 1 1 0 0 0 -0.003880170 1 2 1 0 0 1 0 -0.006074230 2 2 1 0 0 1 1 -0.003963920 2 2 1 0 0 1 0