Displaying 20 results from an estimated 4000 matches similar to: "Principal component?"
2001 Jan 10
1
Rcmd ?
Hi,
I tried running Rcmd.exe to no avail. It doesn't even start because it tries
to read some memory address that NT says it can't and terminate.
I tried downloading and reinstalling rw1020sp.zip with the installer twice
just in case it got corrupted somehow in transport but it resulted in the
same problem.
What should I do?
platform i386-pc-mingw32
arch x86
os Win32
system
2001 Jan 17
1
Scientific notation?
Hi,
Would there be a function and/or some options to force R to write a value of
say 1.0e-4 as "0.0001"? More specifically I want to use R to write ASCII
file(s) for other programs to read and some of these programs don't know how
to deal numbers in scientific notation or have a different convention.
Thanks in advance.
Yves Gauvreau
B.E.F.P. Universit? du Qu?bec ? Montr?al
cyg at
2001 Jan 14
1
Redrawing !
Hi,
If I may suggest that something be done to the window drawing function of a
plot. As it is now, we don't even have time to resize the window by a tiny
bit before it's invoke and I think it would be an improvement if while the
mouse is down the redrawing was delayed somehow. This is especially true
when the plot is crowded. I also observed that moving the plot window around
was a lot
2000 Aug 10
0
Delayed output?
> From: "Yves Gauvreau" <cyg at sympatico.ca>
> Date: Thu, 10 Aug 2000 09:03:51 -0400
> I'm using R1.1 GUI on NT4 box, I noticed that when I use functions that
> print some output during processing I see this output only after the
> function as terminated. If during the processing I activate another
> program's window that overlay completely the R window
2000 Dec 06
1
R: RE:
A trick I use is to give tab-delimited text files created by excel or R the
.xls extension: this may apply, and it may be better, to CSV:
R couldn't see any difference whichever the extension will be, and windows
will be foolished by the .xls extension an will open the file with Excel
that will handel it CORRECTLY.
If you need to have the data always alligned in Excel and R this trick will
2001 Feb 13
0
Documentation suggestion!
> From: "Yves Gauvreau" <cyg@sympatico.ca>
> Date: Tue, 13 Feb 2001 06:06:40 -0500
> Could I suggest that the documentation of "locator" and "identify" be
> modified so that they refer to each other
That's easy, and done now.
> and that the "graphic" keyword be
> added to "identify". If you think it's a good idea
2000 Jun 17
1
Re: R-1.1.0 is released : GUI
> From: "Yves Gauvreau" <cyg at sympatico.ca>
> References: <Pine.GSO.4.05.10006170711230.12526-100000 at auk.stats>
> Date: Sat, 17 Jun 2000 08:41:57 -0400
> Sender: owner-r-help at stat.math.ethz.ch
> Precedence: bulk
>
> This discussion is quite interesting. From the little I know of these issues
> may I humbly suggest that parallelism may be the
2001 Feb 13
3
xfig boxplot (polygon) bug??
There appears to be a bug in the R xfig() driver.
When I run a simple example, eg
> data(InsectSprays)
> boxplot(count ~ spray, data = InsectSprays, col = "lightgray")
the boxplot is fine. Doing the same thing after
> xfig(file='test.fig')
and then opening in Xfig (ver3.2 patchlevel 2) on my Linux box produces boxplots
where the boxes, although correctly shaded in,
2001 Feb 13
3
xfig boxplot (polygon) bug??
There appears to be a bug in the R xfig() driver.
When I run a simple example, eg
> data(InsectSprays)
> boxplot(count ~ spray, data = InsectSprays, col = "lightgray")
the boxplot is fine. Doing the same thing after
> xfig(file='test.fig')
and then opening in Xfig (ver3.2 patchlevel 2) on my Linux box produces boxplots
where the boxes, although correctly shaded in,
2001 Jan 10
1
Auto Demonstration...
Dear List,
Suppose I want to do a demonstration with R, which I will be showing a couple of different graphs (e.g. demo(graphics) ). However I want R to run through each graphics automatically. I can achieve this by changing the line in demo(graphics):
opar <- par(ask = interactive() &&
(.Device %in% c("X11", "GTK", "windows",
2000 Apr 06
1
RODBC
Hi,
I've installed the RODBC library, R1.000, NT 4.0. When I try to load it here
is what I get:
library(RODBC)
Warning message:
Package `RODBC' contains no R code in: library(RODBC)
channel <- odbcConnect("PubsDSN", "sa", "password") # userId and password
Error: couldn't find function "odbcConnect"
Does anyone can shed some ligth on this
2000 Oct 17
3
Cleaning things up?
Hi,
I know it must be written somewhere but I can't find it.
I'd like to remove all variables or objects that I've created but not the
functions. I look at a few things without success. Is there a R way of doing
this? There are to many to create a manual list.
Thanks in advance.
Yves Gauvreau
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r-help
2000 Aug 24
1
How to?
Hi,
Is there a way to apply a function to rows or columns of a matrix?
Now I use apply(as.matrix(1:nrow(m), 1, function(x) mean(m[x,])) which works
fine but kind of slow on large matrix. I'm sure there is something on this
somewhere but I can't find it.
Thanks
Yves Gauvreau
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r-help mailing list -- Read
2002 Feb 19
0
Samba-3.0-alpha9 compilation problems
Hello,
I'm afraid this message is going to be a little long (188 lines,
not counting the headers). It is comprised, in fact, of two posts I
sent to the comp.protocols.smb newsgroup, from which I've not received
any replies. I'm hoping I can have better luck with the mailing list,
(to which I've just subscribed, so it's probably most appropriate
to send replies there...)
2000 Jul 28
4
gremlin in rep()
the following occurred inadvertently and brought R-1.1.0 down
rep(1:3, c(4,2,-6))
Segmentation Fault (core dumped)
platform i686-pc-linux-gnu
arch i686
os linux-gnu
system i686, linux-gnu
status
major 1
minor 1.0
year 2000
month June
day 15
language R
2012 Feb 29
2
Principal Component Analysis
Dear R buddies,
I’m trying to run Principal Component Analysis, package
princomp: http://stat.ethz.ch/R-manual/R-patched/library/stats/html/princomp.html.
My question is: why do I get different results with pca =
princomp (x, cor = TRUE) and pca = princomp (x, cor = FALSE) even when I
standardize variables in my matrix?
Best regards,
Blaž Simčič
[[alternative HTML version deleted]]
2012 Aug 23
1
Accessing the (first or more) principal component with princomp or prcomp
Hi ,
To my knowledge, there're two functions that can do principal component
analysis, princomp and prcomp.
I don't really know the difference; the only thing I know is that when
the sample size < number of variable, only prcomp will work. Could someone
tell me the difference or where I can find easy-to-read reference?
To access the first PC using princomp:
1999 Dec 03
1
R-help Digest V1 #34
R-help Digest Friday, December 3 1999 Volume 01 : Number 034
In this issue:
[R] model.tables
Re: [R] Installing R on Slackware Linux
Re: [R] Installing R on Slackware Linux
[R] nlmin
Re: [R] nlmin
Re: [R] nlmin
Re: Summary: [R] Wanted: online Introduction to R
[R] Applying a function of several variables to data
Re: [R] R and XML -- a near perfect
2000 Sep 24
2
Folding ?
Hi,
I need to write a function that would look something like this:
S <- function(b=betas){
expression(b[1] * f(b[2] * x * f(b[3] * x * f(...b[n-1] * x * f(b[n] *
x)))...)
}
Where n is the number of element in b.
Further I need to be able to evaluate S at some x numerically of course and
I need to use "deriv" and produce dS/dx such that I can evaluate it also at
some x.
I
2003 Nov 19
1
maximum width for pdf device
Hi all,
What is (or how to I change) the maximum width of a pdf image. I am
trying to make a pdf image:
pdf(file="out.pdf",width=200,height=20)
and I can't get the image to be more that 200 inches wide i.e. I get an
empty out.pdf . Is there a solution around this.
Thanks.
Vince
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| Vincenzo Forgetta