Take a look at: http://sepwww.stanford.edu/software/ratfor.html
and in particular the link there to the original paper by Brian
Kernighan describing ratfor; it is only 14 pages, but it is a model
of clarity of exposition and design.
I wouldn't worry too much about the makefile -- it probably
Thanks Chris. I am trying almost the same solution while I have failed the
dbWriteTable.
The problem of using update is that it is way TOO slow when the row size is
~20.
That is why I hope I can still get dbWriteTable way to add one column.
dbWriteTable is very efficient and fast. The
Hi
Reading the help for ?unz I was wondering if I can read data into R from within
an zipfile that is on some website, like maybe:
dtaa =
read.table(unz(http://www.ats.ucla.edu/stat/examples/alsm/alsm.zip,Ch01pr19.dat;))
Thanks for letting me know if you came acros such a thing before.
Toby
Dear all,
I 'd like to keep the names of variables when calling them in a function.
An example might help to understand my problem :
The following function puts in a new data frame counts and percent of
a data.frame called as tablo
the step nom.chiffr[1] - names(vari) is useless as names from
I have a matrix and am trying to write a code to
1. identify all neg values along each line
2. for each neg value I need to identify min(j+3)
3. end with this code: eq[i,j]- ifelse(mat.r[i,j] (0.5*mat.s[i,j]),
mat.all[i,j], 0)
This is the code I have so far. I have tried several different
On Wed, 2007-06-06 at 13:55 -0700, David LEDU wrote:
Hi all,
I am dealing with paleoceanographic data and I have a C14 time serie
and one other variable. I would like to perform a spectral analysis
(fft or wavelet) and plot it. Unfortunately I don't know the exact
script to do this. Does
Roland Rau roland.rproject at gmail.com writes:
Hi Jonathan,
Jonathan Morse wrote:
I am new to Linux (not to R) and recently installed Mandriva Spring 2007
on my partitioned hard drive. My
next objective is to install R in the Linux environment, unfortunately
Mandriva is not one of
your problem is in the statement:
if(mat.all[i,(j-int):(j-1)]0){
you have multiple values in the comparison and the 'if' statement can only
use a single value. Do you want the statement to read:
if(all(mat.all[i,(j-int):(j-1)]0)){
which will test for 'all' the comparisons to be true?
On
Dear list,
I need to read a big txt file (around 130Mb; 23800 rows and 49 columns)
for downstream clustering analysis.
I first used Tumor - read.table(Tumor.txt,header = TRUE,sep = \t)
but it took a long time and failed. However, it had no problem if I just put
data of 3 columns.
Is there any
Don't think you can do that but you could respecify your function
so that the assigned variable must appear as the first argument:
foo - function(y, arg) {
y - substitute(y)
if (is.name(y)) assign(deparse(y), arg+1, parent.frame())
else cat(not assigned\n)
Hello:
I am building R-2.5.0 on Solaris 8 with gcc version 3.3 and I am getting the
following error. Could someone please help me with this?
Error in dyn.load(x, as.logical(local), as.logical(now)) :
unable to load shared library
'/mmrg/temp/R-2.5.0/library/stats/libs/stats.so':
Bernard Colin wrote:
To whom it may concern,
I want to plot two or more graphics in the same window by the means of the
plot command. To do that, I have tried the add=TRUE option, but this last
one does not work! Do you have an hint for me please?
Assuming you want to overlay multiple data
I haven't seen an answer to this post, so I thought I would try to
generate a response.
Regarding your first question (Can i use this factor analysis
somehow despite the poor cumulative variance of the first three factors
?), I would ask, for what purpose? And, What are the
Easy solution will be split your big txt files by text editor.
e.g. 5000 rows each.
and then combine the dataframes together into one.
On 6/7/07, ssls sddd [EMAIL PROTECTED] wrote:
Dear list,
I need to read a big txt file (around 130Mb; 23800 rows and 49 columns)
for downstream clustering
RSiteSearch(R^2 in lme) produced 34 hits for me just now,
including 5 from an exchange on this list dated 2007.05.14.
They should answer your question better than I can.
Hope this helps.
Spencer Graves
Richard Gunton wrote:
Hello,
I'm fitting general linear models
Greetings!
We've added Raleigh***July 09-10 as a second US destination for Dr
Venables' Traditional and Modern Approaches to Statistical Modelling
with R course.
We still have seats for the following July courses:
(1) Traditional and Modern Approaches to Statistical Modelling with R by
Dr
Dear R-users,
In the following example, I would like to see my ylabel as: beta[3] * x[3] +
epsilon (where beta and epsilon are replaced by their mathematical symbols).
Please advise.
Thanks.
Nitin
i - 3
ee - expression(beta[i] * x[i] + epsilon)
xyplot(1:10~ 11:20,
ylab =
Alex,
See
R Data Import/Export Version 2.5.0 (2007-04-23)
search for 'large' or 'scan'.
Usually, taking care with the arguments
nlines, what, quote, comment.char
should be enough to get scan() to cooperate.
You will need around 1GB RAM to store the result, so if you are
On Wed, 6 Jun 2007, Charles C. Berry wrote:
Alex,
See
R Data Import/Export Version 2.5.0 (2007-04-23)
search for 'large' or 'scan'.
Usually, taking care with the arguments
nlines, what, quote, comment.char
should be enough to get scan() to cooperate.
You will need
On Wed, 6 Jun 2007, Nitin Jain wrote:
Dear R-users,
In the following example, I would like to see my ylabel as: beta[3] *
x[3] + epsilon (where beta and epsilon are replaced by their
mathematical symbols).
Please advise.
?plotmath
?bquote
example(plotmath)
Try this:
library(lattice)
x - 1:10
i - 3
xlab - as.expression(substitute(beta[i] * x[i] + epsilon, list(i = i)))
xyplot(x ~ x, xlab = xlab)
On 6/6/07, Nitin Jain [EMAIL PROTECTED] wrote:
Dear R-users,
In the following example, I would like to see my ylabel as: beta[3] * x[3] +
epsilon
The short answer is that you could fit that fixed-effect model
using 'lm', for example. That would make sense if you wanted to make
inference only about that particular group of 20 subjects AND you
thought it was inappropriate to consider that their contribution to a
model would follow
On Wed, 6 Jun 2007, Erin Hodgess wrote:
Dear R People:
In the R Installation and Administration manual, there is a note
that the process used to compile R from source will NOT work on Windows Vista.
Does anyone know if that situation has changed, please?
That's not quite what it says:
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