Thank you; that did it!
Regards,
Tom
On Oct 21, 2005, at 10:46 PM, Gabor Grothendieck wrote:
Use read.table(myfile, header = TRUE, as.is = TRUE) where as.is=TRUE
causes read.table not to convert character data to factors.
On 10/21/05, Thomas Hopper [EMAIL PROTECTED] wrote:
Hello,
I
Hello,
I have what seems like an easy question to answer, but I'm struggling
with it.
I have a set of categorical data that I am reading in, looking
something like:
category result
A .234
B .123
C .564
D -.452
E .112
F -.106
I'd like to plot this twice on two separate dot charts, once with
I'm starting to do a fair amount of DOE in my day job and need to
generate full- and fractional-factorial designs.
One of the things I'd like to do is generate all possible interaction
effects, given the main effects. I've been searching through the
documentation, packages and mail list
set
from sd().
Having identified this seeming quirk, it's not a problem for my work; it
just seems inconsistent and I'm having trouble understanding it.
Thanks,
Tom
Peter Dalgaard wrote:
Thomas Hopper [EMAIL PROTECTED] writes:
I am attempting to wrap the histogram function in my own custom
I am attempting to wrap the histogram function in my own custom
function, so that I can quickly generate some standard plots.
A part of what I want to do is to draw a normal curve over the histogram:
x - rnorm(1000)
hist(x, freq=F)
curve(dnorm(x), lty=3, add=T)
(for normal use, x would be a
Is there any way to control the spacing between bars in a histogram, or
change the border width (I'm assuming the hist() function, though
alternatives are welcome)? I'm interested in changing the visual spacing
between columns in a plotted histogram.
The general effect I'm looking for can be
(at least as defined in the
Encyclopedia of Statistics Sciences, if not in many US Universities).
It is an area, not a series of unrelated bars, so it makes no sense to
have spaces between the subareas.
Unfortunately, hist() will also produce barplots of counts.
On Wed, 9 Feb 2005, Thomas
barplot
values.
If you have groups of bars that you want together, with spaces between
the groups,
you have to put 0's for each of the unspaced bars.
Hope this helps,
Zack
- Original Message -
From: Thomas Hopper [EMAIL PROTECTED]
Date: Wednesday, February 9, 2005 7:02 am
Subject: [R
Hello,
I'm having some difficulty understanding the documentation relative to
the startup files with R-Aqua 2.0.1 for Mac OS X.
Specifically, I'm wondering: where does R search for the startup files
(my home directory at Users:me:?); how should they be named
(.RProfile will be treated by Mac
Many helpful replies; my thanks to all of you!
colMeans() or the apply() function were what I was looking for (though
the looping functions will surely come in handy elsewhere).
On Jan 10, 2005, at 11:03 PM, Marc Schwartz wrote:
# get the column means
z - colMeans(y)
Best regards,
Tom
Hello,
I've got an array defined as y - rnorm(3000), dim(y) - c(3, 1000).
I'd like to produce a 1000-element vector z that is the mean of the
corresponding elements of y (like z[1,1] - mean(y[1,1], y[2,1],
y[3,1])), but being new to R, I'm not sure how to do this for all
elements at once (or,
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