Displaying 20 results from an estimated 8000 matches similar to: "Validating R after it has been installed!"
2002 Nov 20
2
Syntax for using rsync options --exclude and --delete!
Hello All,
I was wondering if anyone has a viable syntax solution for using rsync with
the --exclude and --delete option.
I have been using the rsync process to backup certain files and filesystems
for ease of recovery in the event of unexpected downtime on the primary. I
recently noticed that the process is not deleting files on the destination
host that were removed from the source at some
2001 Oct 17
3
New Beginner: Problems w/loading Matrix package
Hello all,
I am 2 days old in compiling and installing R-1.3.1 and having all kinds of
problems with one particular package named "Matrix_0.3-15.tar.gz"
Where should I start?
OK!
I have successfully installed R version R-1.3.1 as well as a host of other
packages (piece of cake). When I tried to install the Matrix package, I
got an error message stating that the "BLAS library
2002 Feb 14
1
Advice on using barplot
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]),
2002 Jan 27
5
EPS->LaTeX problem
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
2002 Jan 27
1
DBM databases for R?
Hello!
Can I use DBM databases (as they are used in Perl) for the import of
large datasets in R?
Thanks in advance for your help,
Petra Steiner
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---------------------------------------------------
Petra Steiner
Arbeitsbereich Linguistik
Universitaet Muenster
Huefferstrasse 27
48149 Muenster
2002 Feb 08
3
Plotting multiple columns on same graph
I'd like to produce a series of simple line graphs for my methods class
that show the three questions used on a repeated survey to make up a
particular index. The data frame is:
> efficacy.df
year complicated havesay dontcare
1 1952 71 68 63
2 1954 NA NA NA
3 1956 64 71 71
4 1958 NA NA NA
5 1960
2007 Nov 03
2
perl module for R
Hi
can anyone recommend a perl module that I can use to run R?
Stephen
2001 Apr 04
2
png file
Dear R-help list users,
I have a question about saving a graph as .png file under Unix. The R
version is 1.2.2. The message I am getting is
Error in X11(paste("png::", filename, sep = ""), width, height, pointsize,
: unable to start device PNG
No png support in this version of R
even though when I do help on png it shows that it should be working ok and
it should be
2001 Jun 06
3
HLM-like analysis in R
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?
2007 Dec 17
2
Dual Core vs Quad Core
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
2002 Feb 05
2
Measures of agreement
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
2001 Aug 06
1
running R from Perl
Hi everyone,
I'm interested in running R remotely from a Perl program--specifically I
want to plot some data in Perl and return the graph as an object to Perl.
Does anyone know if this is possible?
Thanks,
Evan
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r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info",
2003 Apr 17
18
Validation of R
Hi All
I am really very interested in starting to use R within our company. I
particularly like the open source nature of the product. My company is a
medical research company which is part of the University of London.
We conduct contract virology research for large pharma companies. My
question is how do we validate this software? I wonder if anyone else
has had the problem and might be able to
2004 Nov 19
4
3d Map with bars
Apologies in advance for the question. I am trying to draw a map of the US
as a surface plot so that I would be able to drop bars on the different
states (something like Uwe Ligges' scatterplot3d example 4). I am not sure
where to start looking for such a beast. If anyone has any pointers,
ideas, I will be grateful.
TIA,
Partha
2002 Feb 01
1
Sampling from a database
I use RODBC and RpgSQL quite a lot to access files stored in another
machine under PostgreSQL. Since I am now using files which do not fit
into R's memory, I would like to take random samples. What I would
like is to issue a query such as
SELECT * FROM file WHERE runif > 0.9
with "runif" being a uniformly distributed random number, generated on
the fly; but I cannot
2002 Apr 23
3
stacking vectors of unequal length
R-users --
I would like to make a single vector out of something like the following:
y0 <- rep(0,100)
y1 <- rep(1,20)
and stack them one on top of the other to a vector y with length 120.
Thanks,
Dan
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Dan Powers
Associate Professor, Sociology
University of Texas at Austin
2005 Nov 22
3
Idiom for submit button?
What is the rails idiom for submit buttons on forms?
All other field types have helpers, but button_to creates its
own form, so should not be used. I''ve looked in "Agile Web Dev. with
Rails" but can''t see what I should do instead.
Is this "difficult" because it runs counter to AJAX type forms?
And, related, is there a way to ensure that hitting return in
2002 Mar 01
3
calculating std err (SEM)?
Is there a "canned" function in R for finding the standard error of the
mean? I have tried
> sem <- function(x) c(mean =mean(x),
+ SEM = stdev(x)/sqrt(length(x)))
> sem(pnet.lai)
Error in sem(pnet.lai) : couldn't find function "stdev"
It looks like there is no stdev function in R
Thanks,
Kirk
Kirk R. Wythers email: kwythers at umn.edu
University of
2002 Feb 25
1
Managing Data [Summary]
A while ago I asked about data management approaches in R. I was asked by
several people to post a summary of the responses and alas I am just getting
around to doing it. I received several comments, both on and off list.
Below is a compilation of these responses. Hope this is as helpful to
others as it was to me.
Best,
Brett
1. Frank Harrell recommended a section, "Operating in
2003 Nov 14
5
A suggestion regarding multiple replies
Please don't take this the wrong way. There are a lot of extremely helpful
people who subscribe to r-help.
I was wondering if it is time to adopt a strategy a-la Splus help whereby
people reply to the author and the author summarizes all the replies?
Just a thought and have a good weekend.
Partha