similar to: Status of PostgreSQL using DBI?

Greetings- Running R 2.4.0 under Debian Linux, I am getting a memory error trying to read a very large file: > library(foreign) > oldgrades.df <- read.spss('Individual grades with AI (Nov 7 2006).sav',to.data.frame=TRUE) Error: cannot allocate vector of size 10826 Kb This file is, granted, quite large: aperrin at perrin:/data0/grading$ ls -l total 630304 -r-xr-xr-x 1 aperrin

Hi, I'm running Debian (Sid), Postgres (7.3.4) and R (1.8.1). I get the following error when I tri to use DBI >library("DBI") > p <- dbDriver("PostgreSQL") Error in do.call(as.character(drvName), list(...)) : couldn't find function "PostgreSQL" Is there any other package I need in order to interface between R and Postgres ?

Hi can anyone recommend a perl module that I can use to run R? Stephen

Dear R-users, I use R to run spatial stuff and it takes up a lot of ram. Runs can take hours or days. I am thinking of getting a new desktop. Can R take advantage of the dual-core system? I have a dual-core computer at work. But it seems that right now R is using only one processor. The new computers feature quad core with 3GB of RAM. Can R take advantage of the 4 chips? Or am I better off

In the R-2.3.0 directory, what do you get if you type bin/R? Does R starts up OK, or do you get an error? What were the last few lines of output from running configure? Andy _____ From: Pramod Anugu [mailto:pramod.r.anugu@jsums.edu] Sent: Wednesday, May 31, 2006 11:23 AM To: Liaw, Andy; 'Andrew Perrin' Cc: r-help@stat.math.ethz.ch Subject: RE: [R] Running R [Broadcast]

Greetings- I'm venturing into a new (for me) area of using R: some presentation graphics based on R data. I'd like to compare two distributions of ordinal variables in relatively small (N=203 and 207) subsets of an R dataset. I can get a reasonably good picture of the distributions' differences with: x11() plot(table(hcd.df$auth.sum[hcd.df$datecat==1]),

After upgrading to 1.7.0 under debian linux, I can't get e1071 working properly. The first problem I had was that g++-3.0 was the standard compiler but wasn't installed, so I installed it. e1071 then installed correctly, but I get the following: aperrin at perrin:~/afshome/papers/authoritarian/R$ R R : Copyright 2003, The R Development Core Team Version 1.7.0 (2003-04-16) R is free

I'd like to get summary statistics (really just a mean would be fine) for a vector in a data frame, but split based on the value of another vector. That is, I have a data frame (hcd.df) with variables datecat (which is always 1 or 2) and auth.sum (-8..+8). I've used xtabs to get chi-square comparisons, but what I need now is a simple mean of auth.sum where datecat is 1 and another where

Sorry if this is obvious, but my S skills aren't great and I haven't been able to find it documented anywhere. I want to write a new function for use with lme objects; the function will simply calculate an ICC (aka "rho") for each level of a mixed-effects model. What I need for this is pretty simple: (c(var1..varn, residual)) / sum(c(var1..varn, residual)) where var1..varn

Greetings- I have some data on which I need to do something like a Hierarchical Linear Model (please bear with me, I'm only learning the technique so I don't know yet if my language is correct). Essentially I'm analyzing data at two levels simultaneously; data are about individuals an organizations of which they are members. Can someone point me toward an appropriate package in R?

Greetings- I am in the process of constructing a nonlinear model using nlme. The model is attempting to fit a nested data structure from some public-opinion data (the data are from individuals nested within organizations). The question I have is fairly simple (I hope). The data were collected in two stages: a 15,000-subject randomly-sampled telephone interview (the SCREEN), with 2,517 subjects

Greetings- A relatively small request, but here goes. I have some crosstabs, generated with table(), in R: > table(pg.df$grouptype,pg.df$age) 0 1 2 3 4 B 1 3 6 8 3 C 1 3 4 10 7 P 0 2 9 9 8 S 2 9 4 5 16 U 0 15 15 3 0 X 0 0 0 0 0 I would like to export these in latex format using xtable(). But it appears there's no appropriate method for

Greetings- I'm working through Pinheiro and Bates' _Mixed Effects Models in S and S-Plus_ using R (1.3.1 for linux). On page 13 (okay, so I haven't got that far :)) is: plot.design( ergoStool) which returns on my system: > plot.design(ergoStool) Error: couldn't find function "plot.design" any ideas? Thanks.

Greetings. I'm planning to make a point in a meeting tomorrow and want to make sure I've got my ducks in a row. I've got four distinct vectors: years, fec, gss, and nes. Years is simply seq(1972,1996,by=4), and the other three are measures of voter participation in US elections in those years. fec is the Federal Election Commission's numbers, gss and nes are the General Social

Greetings. I've been experimenting with some algorithms for document classification (specifically, a Naive Bayes classifier and a kNN classifier) and I would now like to calculate some inter-rater reliability scores. I have the data in a PostgreSQL database, such that for each document, each measure (there are 9) has three variables: ap_(measure), nb_(measure), and knn_(measure). ap is me

My apologies if this is obvious - I assume it is but still can't seem to make it work. I've got a data frame acps.df; I want to run an analysis on a subset of that data frame, defined as the subset for which the value of OGMCAT (a column in the data frame) is anything OTHER than 9, 11, or 12. So I'd like to define a new data frame that consists of the same variables as in acps.df,

Greetings- An odd situation has developed. I use the following code to create .eps files of two very similar graphs: postscript(file='resources.bygt.eps', onefile=FALSE, horizontal=TRUE) barplot(resources.bygt.matrix, beside = TRUE, legend.text=c('narrative','doubt'),

Greetings- I have a strange problem displaying a graph from R (1.3.1, linux) in a LaTeX document of documentclass seminar. I'm using graphicx to include the file: \usepackage{graphicx} ... \resizebox{\textwidth}{\textheight}{\includegraphics{crime.eps}} When I do this, the entire slide (including the page number) is rotated 180 degrees. Any ideas why this happens? The graph was created

Returning after the long weekend, I get the following: aperrin at perrin:~/afshome/papers/microcultures/R$ R R : Copyright 2003, The R Development Core Team Version 1.7.0 (2003-04-16) R is free software and comes with ABSOLUTELY NO WARRANTY. You are welcome to redistribute it under certain conditions. Type `license()' or `licence()' for distribution details. R is a collaborative

Please forgive my ignorance on grapics. I'm trying to make a relatively simple plot with two line plots, same axes, by mean over a series of dates. I can make the plot well like this: plot(sort(tapply(first.anti.auth.sum,date,mean), partial=1), type="l", col="yellow",ylim=c(0,2.0)) par(new=TRUE) plot(sort(tapply(first.pro.auth.sum,date,mean), partial=1),