Displaying 20 results from an estimated 10000 matches similar to: "Read.table for macs"
2002 Sep 28
1
Getting .Python to Work Under Windows
Hi all,
I'm trying to call a function in a Python module (v2.2) from within R
(Windows, v1.5.0) but am not having any luck. I've installed
RSPython_0.4-0.zip and the following lines of code cause R to crash:
# R code
library(RSPython)
out <- .Python("samp1", .module="Sample")
# Python file: Sample.py
def samp1() :
return 1
Obviously this is not the actual Python
2003 Feb 22
3
question
Iam a novice R-user and I have a few questions:
1) How can R import an Excell data file?
2) I have a file.s file which it seems I can open but I can
not load it i.e. when I write the file name in the command line, for e.g.
>file.s it gives me an error message
thank you for your consideration,
Theo Nicoleris
2010 Nov 26
2
get list index
Hi R-users,
I have a list
mylist <- list(c(0.79, 0.92, 0.91, 0.86, 0.96, 0.96, 0.95, 0.94, 0.99),
c(0.28, 0.45, 0.59, 0.69, 0.80, 0.87, 0.95, 0.94, 0.98), c(0.29, 0.39,
0.59, 0.69, 0.68, 0.80, 0.93, 0.95, 0.98))
Is there a way to find the index of the list element that contains the
lowest value among all the other elements? As the lowest value in each
element is the first, the
2006 Mar 23
1
NLME Covariates
HLM question?
Is there a minmum number of observations required for a category..I have
individusals in work teams.I have incomplete data for all the teams
..sometimes I only have data for one person in a team.I assume that HLM
can't work here! But what would be the mimimal.at the moment I have a
sample of about 240 in about 100 teams with teamsizes form 2 to 5.
Any advice?
Thanks
2005 Apr 13
3
A suggestion for predict function(s)
Maybe a useful addition to the predict functions would be to return the
values of the predictor variables. It just (unless there are problems)
requires an extra line. I have inserted an example below.
"predict.glm" <-
function (object, newdata = NULL, type = c("link", "response",
"terms"), se.fit = FALSE,
2010 Jul 13
2
modifying vector elements
Hello R-users,
I have a very large vector (a) containing elements consisting of numbers
and letters, this is the i.e.
a
[1] "1.11.2a" "1.11.2d" "1.11.2e" "1.11.2f" "1.11.2x1"
"1.11.2x1b"
[7] "1.11.2x2" "1.11.2x2a" "1.11.2x2b" "1.11.2x3" "1.11.2x4"
2005 Aug 01
2
Rgdal windows binary warning message
Hi all,
I just downloaded windows binaries of RGDAL (from
http://www.stats.ox.ac.uk/pub/RWin/bin/windows/contrib/2.1/) and installed.
I ran the example R_HOME\library\rgdal\R-ex\getPixmapGDAL.R and everything
seemed to work as expected. However I got the following warning message:
DLL attempted to change FPU control word from 8001f to 9001f
The R-help (?dyn.load) describes the problem as:
2005 Aug 04
3
how to read individual values from a pixmap object
Hi All,
I have a greyscale image that I am reading in through RGDAL and placing in a
pixmap object.
As an example use the logo.jpg file that comes with the RGDAL package:
#Read the file
logo <- system.file("pictures/logo.jpg", package="rgdal")[1]
x <- new("GDALReadOnlyDataset", logo)
#Create the pixmap object
xGrey <- getPixmapGDAL(x)
Now I would
2006 Nov 13
2
Embedded carriage returns in text document
Colleagues,
I am using R 2.4.0 on both a Mac (10.4.8) and Linux (RedHat 9). To
read data from an Excel spreadsheet, I do "save as" in Excel, then
select the "Text (tab-delimited)" format. The resulting file uses a
tab separator and I can usually read the file using read.delim.
Sometimes, the header row contains embedded carriage returns. When I
view the file,
2007 Jul 02
4
Extracting sums for individual factors in data frames
I have a data frame with two columns, one of which is a factor
(Species) and the other is numeric (BA, which stands for basal
area). Here's a sample:
Species BA
ACSA 55.7632696
FRAM 122.9933524
ACSA 67.54424205
ACSA 89.22123136
ACSA 82.46680716
ACSA 22.46238747
ACSA 19.94911335
ACSA 20.42035225
ACSA 19.00663555
ACSA 21.67698931
ACSA 57.80530483
ACSA 30.31636911
Dead 43.98229715
Dead
2002 Jul 23
3
Aggregate: assembling the "by" part on the fly
Dear R users,
I'm having trouble using aggregate() and would
greatly appreciate your advice. I am using R 1.5.1
on Windows 2000.
I want to call my function in the following way
extract.data(x=dat[, "Age", "Year"])
where extract.data() uses aggregate() to count the number
of cases for each combination of "Age" and "Year".
I've defined
2010 Aug 11
2
storing the results of an apply call
Hi R-users,
I have a function (myfun) that I want to apply to the rows of a matrix.
Basically, "myfun" takes the values from the matrix ("exp.des"), which
represent the different combinations of my experimental design, and pass
them as arguments to some other functions (fun1 and fun2). As I want to
replicate the results of fun1 and fun2 a certain number of time (e.g.
5), I
2008 Dec 15
2
Duplicates among columns of a data frame
Dear list,
I have a data frame of survey respondents, a little like this:
set.seed(20081215)
n <- 100
dat <- data.frame(id=1:100,
addr1=sample(LETTERS, n, replace=TRUE),
addr2=sample(LETTERS, n, replace=TRUE),
addr3=sample(LETTERS, n, replace=TRUE))
head(dat)
id addr1 addr2 addr3
1 1 R H Q
2 2 H C K
3 3
2002 Nov 21
1
Pearson's correlation coefficient?
How do I get non-squared correlation coefficient in some more
sensible way than
sqrt(summary(lm(y~x))$r.squared)?
Thanks
Matej
--
Matej Cepl, matej at ceplovi.cz,
Finger: 89EF 4BC6 288A BF43 1BAB 25C3 E09F EF25 D964 84AC
138 Highland Ave. #10, Somerville, Ma 02143, (617) 623-1488
The difference between death and taxes is death doesn't get worse
every time Congress meets
-- Will
2002 Oct 21
2
3-D scatter plot laid over Surface plot
Hello,
I have created a Fitness surface (persp()), with data that was created
by a tp spline procedure. Now I would like to superimpose a set (XYZ) of
existing points (from two different treatments) onto this surface.
I didn't come across any function or command that is able to do this in R.
Could somebody please help me in finding a solution to this problem
Thank you
Peter
--
2003 Sep 04
2
laplace transform
Dear users,
is anybody of you aware of a R command to perform laplace transform or
even its inversion?
Thank you very much.
Luca
2009 Jan 07
2
New York Times Article: Data Analysts Captivated by R's Power
Readers of this list might be interested in the following article in the
New York Times and might find amusing the notion that "Some people
familiar with R describe it as a supercharged version of Microsoft's
Excel spreadsheet software...".
http://www.nytimes.com/2009/01/07/technology/business-computing/07progra
m.html?_r=1&ref=technology
Art
2003 Jul 22
3
R and C++ compared with only C++
My computer is a pentium 4 running at 2.4 GHz.
My R is 1.7.1
I have written a program in R that calls C++. The program spends most of the
time in C++ ( > 90% ). R basically deals with output and input.
How slower can this be compared with the program I would get from rewriting
everything in C++?
Thank you.
2003 Aug 21
5
graphic widow overwrite
Hi,
I am running a loop to plot multiple plots. In s-plus,
it shows multiple pages in the graphic window to allow
checking on each plot. but in R, the next plot always
overwrite the previous one, so i can only have the
last plot produced, is there a way to have multiple
pages in the graphic window just like S-plus does?
Thanks
2003 Sep 08
2
cannot allocate vector of size...
Hi,
I know that this question has been asked several times before but I haven't
been able to find an answer.
I'm running R on a P3 933 with 384 MB of RAM. The system is running Windows
XP Home.
I'm trying to read a 1054 row by 30303 column matrix from a tab delimited
text file ("file.txt") into R using the following command:
m <- matrix(scan(file