Spencer Graves's suggestion of using shape and scale parameters on a log
scale is a good one.
To do specifically what you want (check values for which the objective
function is called and see what happens) you can do the following
(untested!), which makes a local copy of dgamma that you
PS. 11 MILLION entries??
On Tue, 30 Sep 2003, Ben Bolker wrote:
Spencer Graves's suggestion of using shape and scale parameters on a log
scale is a good one.
To do specifically what you want (check values for which the objective
function is called and see what happens) you can
Do you mean you want to generate deviates from this distribution or that
you want the density function (or distribution function)?
mvrnorm in package MASS (library(MASS)) will generate multivariate normal
deviates. A brute-force approach would just keep picking values until you
get ones in
Can you use save.image() to rescue your results?
I would try save.image(file=salvage.RData) and see if the file
appears. Otherwise I would say you're probably out of luck.
On Mon, 29 Sep 2003, Ross Boylan wrote:
I have a hung session I would very much like to recover, since it has
textbook or reference material ...
Ben Bolker
On Fri, 26 Sep 2003, Yao, Minghua wrote:
Dear all,
I have the following output generated by linear regression. Since there is
only one regression intercept and one slope for one set of data, what is the
meaning of std. error for intercept
I'm afraid you're going to have to look it up in a basic statistics
textbook.
Ben Bolker
On Fri, 26 Sep 2003, Yao, Minghua wrote:
Thanks, Ben.
Could you tell me the formula for calculating this sd., given (x_i, y_i)
(i=1,2,...,N)?
We only have one intercept and slope for them
Consider:
?cut
?round
With more detail we might be able to help more ...
On Tue, 23 Sep 2003, Jaime Lopez Carvajal wrote:
Hi R users
I need to apply discretization to my continuous data.
Is there a method in R to do this?
Thanks in advance,
Jaime
--
620B Bartram Hall
Your best bet is saving as a comma-separated value file (.csv) and using
read.csv to get the data into R.
Ben
On Tue, 23 Sep 2003 [EMAIL PROTECTED] wrote:
Hi,
I would like to know how to extract the data from Excel Spreadsheet.
Thank you very much.
Melissa
in
a web browser. Not as good as x/ggobi for interaction with data, but
possibly OK for display.
Ben Bolker
On Wed, 17 Sep 2003, Brian D Ripley wrote:
On Wed, 17 Sep 2003, Thomas W Blackwell wrote:
Perhaps MZodet wants the interactive, mouse controlled rotation
capability offered by ggobi
Yes, although this becomes tedious if (e.g.) you have a function that
calls two different functions, each of which has many arguments (e.g.
plot() and barplot(); then you have to set up a whole lot of arguments
that default to NULL and, more annoyingly, you have to document them all
in
?as.numeric
On Fri, 12 Sep 2003, Michael Kirschbaum wrote:
Hi Everyone.
I have a simple problem but don't know, how to get along.
how can I convert the vector
a-c(0,01,1,00)
in a vector
b-c(0.01,1.00)
Thank you for suggestions
M.Kirschbaum
[[alternative HTML
If you're working in windows, the WMF (windows metafile) format is
probably your best bet; it's a vector format like PostScript.
On Wed, 10 Sep 2003, Karim Elsawy wrote:
it seems that word can not read encapsupalted postscripts generated by R
I used this command
paste(x,collapse= )
On Wed, 2 Apr 2003, John Miyamoto wrote:
Dear Help,
Suppose I have a character vector.
x - c(Bob, loves, Sally)
I want to combine it into a single string: Bob loves Sally .
paste(x) yields:
paste(x)
[1] Bob loves Sally
The following function combines
be able
to do some QA work for you. :)
-Kevin
-Original Message-
From: Ben Bolker [mailto:[EMAIL PROTECTED]
Sent: Monday, March 31, 2003 3:25 PM
To: Kevin Karty
Cc: [EMAIL PROTECTED]
Subject: Re: [R] Does R have an inverse wishart distribution?
Do you want
Either
n1 - length(x1)
n2 - length(x2)
plot(c(x1,x2),c(y1,y2),col=rep(c(1,2),c(n1,n2)), pch=rep(c(1,2),c(n1,n2))
OR
plot(x1,y1,xlim=range(c(x1,x2)),ylim=range(c(y1,y2)),col=1,pch=1)
points(x2,y2,col=2,pch=2)
will work.
Ben Bolker
On Wed, 26 Mar 2003, Vasudevan, Geetha wrote:
Hello
Should that be sep=\t ?
On Fri, 21 Mar 2003, sabrina servanty wrote:
Dear all,
I was used to work on R1.6 and I have now passed on R1.6.2 but I can't read my
file (and that is a big problem!!).
I made a data sheet with some
spreadsheet in Excell, and save it as separeted by tab .txt.
Put your own solution together with arrows(...,angle=90), or use plotCI
within gregmisc, or get plotCI from my website
(http://www.zoo.ufl.edu/bolker/R/windows -- you want the bbmisc bundle)
Ben
On Fri, 28 Feb 2003, Katrina Grech wrote:
How do I add error bars to an interaction plot of
II.
How to extract only those values from vector which fulfill the condition
of interval (higher than A, and lower than B)?
x[xA xB]
Rado Bonk
__
[EMAIL PROTECTED] mailing list
http://www.stat.math.ethz.ch/mailman/listinfo/r-help
--
Your best bet is help.start().
On Wed, 19 Feb 2003, Alexey Shipunov wrote:
Dear R users,
Is there the possibitily in R under X11 to get (after typing help(...)
command) separate help window, as it is in Windows version?
Best wishes,
=
Dr. Alexey
Use family=quasibinomial in your glm() statement.
R does what you say rather than doing what you mean: it specifically
says something like (Dispersion for binomial family taken to be 1),
which is an indication that R is not using a dispersion factor 1 in this
case. (There is a hint of this
person for updating (and for keeping it coherent ...)
Ben Bolker
On Fri, 7 Feb 2003, Eric Lecoutre wrote:
Hi R community,
These days, I am writing some functions to work with 2-ways frequency
tables ; you know all this tuff about measures of association: Chisq and
derived (phi
Depending on what you mean (same x-axis and y-axis), look at
?points or ?lines OR (same x-axis, different y-axes) plot(...);
par(new=TRUE); plot(...,ann=FALSE). (The latter is asked frequently on
this list.)
Ben Bolker
On Thu, 30 Jan 2003, Francisco do Nascimento Junior wrote:
Hi
What do you mean by double exponential? Can you give us another more
familiar name (e.g. Laplacian), or a reference, or a more detailed
description, or a formula for the cumulative or probability density
function?
Ben Bolker
On Thu, 30 Jan 2003, Jason Parcon wrote:
To whom it may concern
?file.exists
On Tue, 28 Jan 2003 [EMAIL PROTECTED] wrote:
Dear R-experts
I would like to read all files from a directory, the files have names
myname0001.txt etc. I paste the directory plus file names and
use read.delim().
My problem is that some file names are missing, so I get an
I have some code to do this; I keep meaning to clean it up and put it
on CRAN, but it's fairly hard work to do it right. I also thought I heard
a rumor that there would be something like that in MASS4. There should be
a version on http://www.zoo.ufl.edu/bolker/R (subdirectories src and
See ?par, the source of all wisdom:
par(las=1)
On Tue, 14 Jan 2003 [EMAIL PROTECTED] wrote:
Dear R People,
I'm working on a plot function to produce the graph shown below. One of
the features my supervisor does not like is that the labels in the Y-
axix are shown vertically. Is there
of these questions are pretty basic; you really need to try to get
some help off-list. You may not get too much more help here unless you
explain what your situation is (are you doing this for a class,
independent project, etc.) and give some indication that you've exhausted
local resources ...
cheers,
Ben
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