2008/11/6 Paul Hiemstra [EMAIL PROTECTED]:
How can execute a bash command inside the script, like the command for
change the directory (cd)?
?system
The system function won't work for changing the working directory of R though:
getwd()
[1] /home/rowlings
system(cd /)
getwd()
[1]
2008/11/3 [EMAIL PROTECTED]:
So how do I detect the NULL at r[1]?
How can you detect what is not there?
Single square brackets on a list give you a list. Double square
brackets give you the elements.
is.null(r[[1]]) should be TRUE.
Barry
__
2008/10/31 megh [EMAIL PROTECTED]:
Is there anything like goto loop, which exists in most computer programs?
Really? Not since 1968, I think:
http://www.cs.utexas.edu/users/EWD/ewd02xx/EWD215.PDF
e.g. I am looking for this kind of stuff :
if(i 6) goto step-02
Any idea?
Thinking you
2008/10/31 Peter Dalgaard [EMAIL PROTECTED]:
It doesn't exist, but it can always be replaced by if() {} else {}
constructs. (You don't usually see goto in the class of functional
programming languages to which R belongs. See also
http://en.wikipedia.org/wiki/Edsger_W._Dijkstra .)
Also see
2008/10/28 [EMAIL PROTECTED]:
To answer your question, we do not distribute R. We distribute R-PLUS.
But your web site claims, in big capital letters, that R-plus is THE
REAL R. If you are not distributing R (the real real R, (c) The R
Foundation), then this could be construed as false
2008/10/27 Freiberger, Katrin [EMAIL PROTECTED]:
Dear All,
I learned about R during my studies at Cologne University of Applied Science.
Now I work at Allianz Dresdner Bauspar AG and I would like to install R here
too. Is there any license issues that need to be taken in consideration, any
2008/10/24 Gabor Grothendieck [EMAIL PROTECTED]:
NA and NA are not the same:
DF - data.frame(x = c(a, NA, NA))
DF
x
1a
2 NA
3 NA
is.na(NA)
[1] TRUE
is.na(NA)
[1] FALSE
Yes, but unless you tell it otherwise, read.table will think Namibia
is an NA, even in a column of
2008/10/21 Marcioestat [EMAIL PROTECTED]:
Hi listers,
I am working on a program of statistical analysis of simulated data and I've
been searching the error at the program, but I didn't find it!
It is something about the WHILE procedure, the error says: Error in while
(ecart = d) { : missing
2008/10/18 Jan Theodore Galkowski [EMAIL PROTECTED]:
I have a JPEG map of temperature data, coded using a given legend where
blues are cooler and reds hotter. Is there any preexisting R magic or
package which might let me recover the value of the scalar quantity so
represented given the RGB
2008/10/16 Michael Just [EMAIL PROTECTED]:
On Thu, 16 Oct 2008, Michael Just wrote:
I think I am still a beginner, hence all the questions. I am pretty
sure my code has redundancies and I use excel as an text editor, its
the fastest way I know how (lots of dragging formulas). I have
1,000's
2008/10/16 Thomas Steiner [EMAIL PROTECTED]:
Hi I want to draw sth in a pdf file with a predefined defined size.
Say a 5cm x 3cm rectangle (a ruler):
pdf(rect.pdf, paper=a4)
plot(c(1,5,5,1,1),c(1,1,3,3,1),asp=1,axes=n)
dev.off()
but how do I fix that one unit is 1cm?
I just did
2008/10/16 Jörg Groß [EMAIL PROTECTED]:
Hi,
Is there a function which counts the frequencies of the occurence of a
number within an interval?
for example I have this vector:
x - c(1, 3, 1.2, 5, 5.9)
and I want a vector that gives me the frequencies within an interval of 2,
beginning at
2008/10/16 Erin Hodgess [EMAIL PROTECTED]:
Hi R People!
Is there a setup for Roman numerals similar to that of LETTERS and
letters, please?
I was putting together a randomized block design and thought that it
might be nice for factors.
Thanks,
Erin
as.roman() in utils:
2008/10/12 Ted Harding [EMAIL PROTECTED]:
Hi Folks,
I'm wondering if there's a secret trick to achieve the following.
I have some big code for analysis related to a named variable,
which will be one of several in the columns of a dataframe, and
I would like to be able to choose between a run
2008/10/5 Ted Harding [EMAIL PROTECTED]:
sexyNo()
How puerile. R should be used for serious purposes. Here is a plot
that shows a log-log-log feasible region symmetric about x=0, within a
sinusoidal left and right-bound envelope:
# set up plot
xrange=c(-15,15)
yrange=c(0,16)
2008/9/28 June Kim [EMAIL PROTECTED]:
Hello,
What is the best material(book, pdfs, ...) for programmers, who have
extensive experience in other programming languages, to learn R
programming? I think there are many materials on how to use R for
specific statistical jobs, but I haven't seen
2008/9/25 Kingsford Jones [EMAIL PROTECTED]:
Try
?type
which correctly guesses the user is looking for the 'typeof' page.
Or even
example(type)
Also, after a brief introduction, the R Language Definition document
begins with a discussion of types.
Kingsford Jones
But if, oh if,
2008/9/23 glaporta [EMAIL PROTECTED]:
HI there,
why these lines of code are correct
plot(count~spray, data = InsectSprays)
plot(InsectSprays$count)
but this return an error:
plot(count, data = InsectSprays);
data method is not implemented in plot?!
The 'plot' function, like many
2008/9/23 Ajay ohri [EMAIL PROTECTED]:
Hi List,
Graphical output to PDF's ,RTF ,CSV is known through R.
Can it be modified for outputting to Google Docs (which is basically
uploaded files ,published to become html pages)
Is there any package on this ?
Do you basically mean an R
2008/9/23 Ajay ohri [EMAIL PROTECTED]:
By outputting PDF directly to a Google Doc, it becomes light and portable
for people to view and collaborate on projects in different parts of the
world.
If you extend this to Google spreadsheets this functionality is especially
useful for financial
2008/9/22 José E. Lozano [EMAIL PROTECTED]:
I wouldn't call a 4GB csv text file a 'database'.
It didn't help, sorry. I perfectly knew what a relational database is (and I
humbly consider myself an advanced user on working with MSAccess+VBA, only
that I've never face this problem with
2008/9/22 José E. Lozano [EMAIL PROTECTED]:
Exactly, raw data, but a little more complex since all the 50 variables
are in text format, so the width is around 2,500,000.
Thanks, I will check. Right now I am reading line by line the file. It's
time consuming, but since I will do it only
2008/9/22 jim holtman [EMAIL PROTECTED]:
Why don't you make one pass through your data and encode you
characters as integers (it would appear that you only have 16
combinations). You might also want to consider using the 'raw' object
since these only take up one byte of storage -- will reduce
2008/9/19 Wensui Liu [EMAIL PROTECTED]:
Dear Listers,
I've been a big fan of R since graduate school. After working in the
industry for years, I haven't had many opportunities to use R and am mainly
using SAS. However, I am still forcing myself really hard to stay close to R
by reading
2008/9/7 Anny Huang [EMAIL PROTECTED]:
Hello,
I want to know how to draw a line connecting each point to the x-axis
perpendicularly (i.e. a vertical line).
abline(v=...) seems not to work for my purpose, because it runs over the
data point. Can anyone help? Thanks.
If your x-axis is at
2008/9/4 Ted Byers [EMAIL PROTECTED]:
Erin,
I trust you know what you risk when you assume. ;-)
There IS a license, but it basically lets you copy or distribute it, or, in
your case, install on as many machines as you wish. It is the GNU GENERAL
PUBLIC LICENSE.
Like most open source
2008/8/28 Fränzi Korner [EMAIL PROTECTED]:
example 1:
I would like to add the word ABC to a figure. Thereby each letter should
have a different colour.
text(x,y,ABC, col=c(1,2,3)) # this does not work
kludge alert!
How about:
text(x,y,ABC,col=3)
text(x,y,AB,col=2)
text(x,y,A,col=1)
2008/8/28 [EMAIL PROTECTED]:
hazard - function(x,shape,scale)
{
return (shape/scale) * (x/scale)^(shape - 1)
}
Only return a single value? It is like x becomes a single value passed as an
argument.
It's evaluating return(shape/scale) and returning that! Add some
extra parentheses:
2008/8/27 Patrick Connolly [EMAIL PROTECTED]:
Your question is one relating to your window manager. The display
parameter for x11() does not relate to desktops. All the desktops are
part of the same display. Some very clever R-devel people might be
able to think of a way of making a
2008/8/25 Henrique Dallazuanna [EMAIL PROTECTED]:
Is there the rimage package:
if(!require(rimage))install.packages(rimage)
x - read.jpeg(system.file(data, cat.jpg, package=rimage))
Nice, but if the require() fails and the package installs via
install.packages, you still have to do the
2008/8/22 Emmanuel Charpentier [EMAIL PROTECTED]:
Le vendredi 22 août 2008 à 15:16 -0400, John Tillinghast a écrit :
I'm trying to figure this out with Writing R Extensions but there's not a
lot of detail on this issue.
I want to write a (very simple really) C external that will be able to
2008/8/20 Wesley Roberts [EMAIL PROTECTED]:
Dear R users,
pdf(file=as.character(paste(f.mat[a])).pdf)
Whoa! Why the quotes? And why the as.character? Just paste:
pdf(file=paste(f.mat[a],.pdf,sep=))
should do it. It looks like you were trying to create a file called
as.character(...etc.
2008/8/20 Bos, Roger [EMAIL PROTECTED]:
All,
I have a variable called `go` and it has a single quote in the name
column of line 47 that I am trying to get rid of. I have tried using
gsub, but I cannot get the syntax correct to tell R to remove the '
(single quote).
go[47,]
gvkey
2008/8/18 Kurapati, Ravichandra (Ravichandra)
[EMAIL PROTECTED]:
Dir-/var/www/html/celnet/users/cxadmin/FlowDuration_DataVolume/fld_01_
08_18_08
There will be pdf and/or csv files.
I want to know how many *.pdf files are there in that
directory.
How can I get using
2008/8/14 Marc Schwartz [EMAIL PROTECTED]:
I think it's an Ubuntu bug, because nothing like it occurs anywhere else.
So I'd suggest you turn off compiz or switch to a reliable OS like Windows
;-).
Gack... ;-)
What do you recommend for multiple desktops in Windows? I've
currently got six
I have just encountered the problem with rgl where plot3d figures
don't interact with the mouse. My plots zoom in and out with the mouse
wheel but the mouse buttons do nothing. I can't rotate the plot.
This has been mentioned and discussed here and in other lists before,
and the solution is to
2008/8/13 Ben Bolker [EMAIL PROTECTED]:
Barry Rowlingson b.rowlingson at lancaster.ac.uk writes:
I have just encountered the problem with rgl where plot3d figures
don't interact with the mouse. My plots zoom in and out with the mouse
wheel but the mouse buttons do nothing. I can't rotate
2008/8/12 Aiste Aistike [EMAIL PROTECTED]:
Hello,
I have a problem with using read.csv(). I want to read a table from the ONS
neighborhood statistics website which has an address:
2008/8/11 Lafaye de Micheaux Pierre
[EMAIL PROTECTED]:
I would like to be able to choose which *.cpp files will be compiled and to
exclude some *.cpp files from the compilation.
This is because some of my *.cpp files contain #include instructions calling
some other *.cpp file.
For example,
2008/8/11 Ben Bolker [EMAIL PROTECTED]:
I can set up an entry widget (thanks to an old
post by Barry Rowlingson) that gets a password and
exits when the user clicks on the OK button.
Who? Oh dear, my past comes back to haunt me...
getPassword - function(){
require(tcltk)
tt
2008/8/11 Ben Bolker [EMAIL PROTECTED]:
I can set up an entry widget (thanks to an old
post by Barry Rowlingson) that gets a password and
exits when the user clicks on the OK button.
Who? Oh dear, my past comes back to haunt me...
getPassword - function(){
require(tcltk)
tt
2008/8/11 Ben Bolker [EMAIL PROTECTED]:
I can set up an entry widget (thanks to an old
post by Barry Rowlingson) that gets a password and
exits when the user clicks on the OK button.
Who? Oh dear, my past comes back to haunt me...
getPassword - function(){
require(tcltk)
tt
2008/7/28 Rolf Turner [EMAIL PROTECTED]:
On 28/07/2008, at 12:32 PM, oscar Linares wrote:
Hello,
I am trying to convert english words to numeric equivalents, e.g., abc to
123. Is there a function or library or package for doing this in R? If not,
can it be done easily in R?
Your question
2008/7/22 Kunzler, Andreas [EMAIL PROTECTED]:
Dear List,
I try to order the output of a table by the frequencies of the vector I
am look at.
The object I am looking at is a factor with a lot of levels that were
named only once.
Therefore it would be much easier to order the output by the
2008/7/16 Ted Harding [EMAIL PROTECTED]:
Hi Folks,
I'd be grateful for good suggestions about the following.
I'm plotting a family of (X,Y) curves (for different levels
of another variable, Z): say 6 curves in all but could be
more or less -- it's a rather variables situation.
I'd like to
Ron Michael wrote:
can i have some instruction on how to draw this type of plot in R :
http://sitmo.com/doc/Image:Ll_ou_conpron.png#filelinks ? Regards,
The black curve and it's grey friends are probably easily done with
plot or matplot, but you need to make sure the X-axis extends far
Hua Li wrote:
Hi All,
I have a problem of putting long titles on a graph:
for example,
x= seq(1:100)
y=seq(1:100)
plot(x,y,main=p=0.05:A-B=3,C-D=10,D-E=100,A-F=2,AFR-E=3,ACE-D=1,ADEF-M=0,AED-E=10,DE-F=3,AB-J=4,AC-J=10,ED-F=1,ED-B=4,AF-B=10,CD-S=10,AM-C=4)
R seems not able to print the whole
Shubha Vishwanath Karanth wrote:
I need:
a+b+c+d
[,1] [,2]
[1,]4 12
[2,]8 16
Something like do.call(+,l) is not working...why is this?
Because do.call constructs a function call with the elements of l as
arguments, so you end up with:
+(1:4, 1:4, 1:4, 1:4)
but
Tom Chr Backer Johnsen wrote:
I can at best say that this question is related to R.
What has become more and more obvious to me after I started using R
about two years ago is that I have collected a large number of data
files, scripts, and workspaces (.Rdata files) in several catalogs on
JRG wrote:
You might consider Treepad Lite (www.treepad.com). It's a tiny, free-form
tree-structured
notebook/database/text editor. It stores stuff as plain text, so you can
easily copy/paste to
other software. It's available for Windows and Linux, and it's free ---
though more
Doran, Harold wrote:
I'm curious if there are users of RPy on this list. I've recently
created a gui front end using Tkinter for some python scripts I've
written for some of our internal operations and I am quite pleased with
how this program works.
Currently, I can use py2exe to create a
John Fox wrote:
Dear Fehmi,
Curiously, I check the Rcmdr package on an up-to-date Ubuntu 7.10
system running R 2.6.2. I've just checked again after updating both
Ubuntu and all R packages, and I can't duplicate your problem -- the
Tools - Load packages menu works fine for me, as does
Gustaf Rydevik wrote:
On Mon, Apr 7, 2008 at 11:31 AM, arpino [EMAIL PROTECTED] wrote:
Hi everybody,
I have to create several variables of this form:
Yind = L0 + L1*X1 + L2*X2 + L3*X3 + K*Cind + n
where ind varires in {1,...,10}
look up ?assign and ?get, i.e:
for (ind in 1:10) {
Albicelli, Nicholas (Exchange) wrote:
How can I parse a YAML file in R 2.6.0 in Windows? I cannot get the
RYaml package to compile in Windows, I can't find a MinGW compiled .dll
for an existing YAML parser like syck (which would appear to be the best
hope for creating my own R wrapper
Earl F. Glynn wrote:
Nearly six years ago, SAS also refused to give us academic pricing because
we were not a degree granting institution. About a year ago, SAS finally
granted us academic pricing, but most of the analysis momentum was already
for the use of R/Bioconductor.
I recently
Thompson, David (MNR) wrote:
Hello,
I would like to reorder columns in a data frame by their names as
demonstrated below:
Take this data frame:
xxx - data.frame(matrix(1:40, ncol=8))
names(xxx) - letters[1:8]
xxx
a b c d e f g h
1 1 6 11 16
Prof Brian Ripley wrote:
FAQ Q7.31 and ?== should enlighten you.
None of 0.05, 0.1 ... 0.9, 0.95 are exactly representable on a binary
computer.
Doesn't the string 0.95 constitute an exact representation? And my
computer is definitely binary. Although I suspect it is also bipolar.
Duncan Murdoch wrote:
Another problem is that there are two different class systems in R:
sometimes calls S3 and S4 (because of the versions of S where they were
introduced). You were reading about S3.
There's three different class systems if you also include the R.oo
add-on package[1].
Bernd Weiss wrote:
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
skestin schrieb:
| I suppose it's very simple but I can't find the way to generate a
sequence of
| characters, e.g. from a to z.
| Could you please help me with this?
?letters
letters
letters is okay for just that
Clint Bowman wrote:
So how does SAS compare with one of the specialty languages such as perl.
I've found the combination of perl and R to work quite satisfactorily (as
long as I don't confuse the syntax and functions available in each.)
Now that the topic has drifted off the subject of what
Bruno Jesus wrote:
So... back to the initial question. Can I break the cycle with a signal
from the keyboard?
The following code, slightly modified from:
http://www.sciviews.org/_rgui/tcltk/OKCancelDialog.html
lets you interrupt an analysis by clicking on a dialog box, using the
tcltk
Lauri Nikkinen wrote:
R-users,
Is there a function for ceiling to the nearest ten?
a - 1:10*4
a
[1] 4 8 12 16 20 24 28 32 36 40
The resulting vector should look like this (ceiling to the nearest ten)
[1] 10 10 20 20 20 30 30 40 40 40
Divide and conquer:
a
[1] 4 8 12 16
Rob Robinson wrote:
Perhaps not the most elegant but 10*ceiling(x/10) usually works for me...
I thought maybe adding five and rounding to the nearest -1 decimal
places might be quicker:
round(a+5,-1)
[1] 10 10 20 20 20 30 30 40 40 40
gives same as:
ceiling(a/10)*10
[1] 10 10
Gustaf Rydevik wrote:
Hi all,
Reading the wikipedia page on R, I stumbled across the following:
http://fluff.info/blog/arch/0172.htm
It does seem interesting that the C execution is that much slower from
R than from a native C program. Could any of the more technically
knowledgeable
Wang, Zhaoming (NIH/NCI) [C] wrote:
Hello
I'm using rainbow function to generate 10 colors for the plot and it is
difficult to tell the neighboring colors from each other. How can I make
the colors more differently.
If all you want is for neighbouring colours to be distinguishable you
Dimitris Rizopoulos wrote:
try this:
y - c(15.51, 12.44, 31.5, 21.5, 17.89, 27.09, 15.02, 13.43, 18.18,
11.32)
x - seq(3.75, 6, 0.25)
coef(lm(y ~ x + I(x^2) + I(x^3)))
Or use the 'poly' function:
coef(lm(x~poly(y,3)))
(Intercept) poly(y, 3)1 poly(y, 3)2 poly(y, 3)3
4.875
August Washington wrote:
I meet a problem about my R code. I find the output of my R code is
different from the result several months ago. Do anybody meet this
situation and how to explain?
Not me, the square root of 2 is pretty much the same it was last year.
Possibilities, in the
Peter Dalgaard wrote:
The toolchain availability tends to get in the way. Linux-based gadgets
could prove easier. I do wonder from time to time whether there really
is a market for R on cellphones...
As soon as someone writes library(ringtone) there might be :)
And I think you'd have to
jim holtman wrote:
?match
X
[1] 2 6 1 7 4 3 5
Y
[1] 1 1 6 4 6 1 4 1 2 3 6 6 1 2 4 4 5 4 1 7 6 6 4 4 7 1 2
match(Y,X)
[1] 3 3 2 5 2 3 5 3 1 6 2 2 3 1 5 5 7 5 3 4 2 2 5 5 4 3 1
I quite like this solution:
X[X[X[X[X[X[X[X[X[X[X]][Y]
[1] 3 3 2 5 2 3 5 3 1 6 2 2 3 1 5 5
Barry Rowlingson wrote:
If any of the points of A fall inside B or vice versa then the convex
hulls overlap.
Pah, I'm wrong. View this with a fixed-width font:
21 2
11
21 2
convex hull of 1 and 2 overlap, yet no points of either are inside
hadley wickham wrote:
You're assuming an automatic cast from numbers into strings? What if
a + 4 threw an error?
What's wrong with commas anyway when using cat():
cat(x is ,x,' and y is ',y,'\n',sep='')
x is 1 and y is 2
and there's always sprintf() for those moments when you want
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