Hello!
For calculating the Choleski factor, you should look at:
LINPACK: dpofa, dchdc, (dppfa, although i think this one is not
included with R)
The R code of function chol() is a good starting point. It is located at
%RHOME%/library/base/R/base (line 4115 on the windows version of R
1.8.1
Erin Hodgess wrote:
Dear R People:
Is there a function available to for phase plane plotting,
please?
Thanks,
Erin Hodgess
Associate Professor
Department of Computer and Mathematical Sciences
University of Houston - Downtown
mailto: [EMAIL PROTECTED]
PS R 1.8.1 on Windows XP 2000
Hello.
I asked before and it was great, cause as a beginner I learned a lot. But, if I have
this in R (1 and 2 are codes for sex):
sex-c(1,2,2,1,1,2,2,2)
sex
[1] 1 2 2 1 1 2 2 2
I´d like to obtain the proportion according to sex.So I type:
prop.table(sex)
[1] 0.07692308 0.15384615
table(sex)/length(sex)
Andrew
On Sunday 29 February 2004 06:35, Carlos Mauricio Cardeal Mendes wrote:
Hello.
I asked before and it was great, cause as a beginner I learned a lot. But,
if I have this in R (1 and 2 are codes for sex):
sex-c(1,2,2,1,1,2,2,2)
sex
[1] 1 2 2 1 1 2 2 2
I´d
I'm using R 1.8.0 under windows XP. I can't get certain of the graphics devices set
up. For example, when I copy this line directly from the postscript help screen, I
get the error messages that follow it:
postscript(foo.ps)
Error in PS(file, old$paper, old$family, old$encoding, old$bg,
Andrew Robinson [EMAIL PROTECTED] writes:
table(sex)/length(sex)
or, as is the intended usage:
prop.table(table(sex))
sex
1 2
0.375 0.625
I asked before and it was great, cause as a beginner I learned a lot. But,
if I have this in R (1 and 2 are codes for sex):
David Parkhurst wrote:
I'm using R 1.8.0 under windows XP. I can't get certain of the graphics devices set up. For example, when I copy this line directly from the postscript help screen, I get the error messages that follow it:
postscript(foo.ps)
Error in PS(file, old$paper, old$family,
Carlos Mauricio Cardeal Mendes wrote:
I asked before and it was great, cause as a beginner I learned a lot. But,
if I have this in R (1 and 2 are codes for sex):
sex-c(1,2,2,1,1,2,2,2)
sex
[1] 1 2 2 1 1 2 2 2
I´d like to obtain the proportion according to sex.So I type:
prop.table(sex)
[1]
Dear Carlos,
prop.table() takes a table as its argument, so you could specify
prop.table(table(sex)). See ?prop.table for more details.
John
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On
Behalf Of Carlos Mauricio Cardeal Mendes
Sent: Sunday, February 29,
Hi,
I'd like to remove the axes from a plot produced by stripchart(). However,
when trying stripchart(..., axes = FALSE), I get the error meassage
Error in stripchart(hypokvot1 ~ treatment, jitter, pch = 1, vert = TRUE, :
unused argument(s) (axes ...)
using R 1.8.1 on Windows. Can it
Several people have alrady answered you by this time and
in addition to their answers you might also be interested
in CrossTable in package gregmisc.
---
Date: Sun, 29 Feb 2004 11:35:06 -0300
From: Carlos Mauricio Cardeal Mendes [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Subject: [R]
Hi,
I am having a problem getting RMySQL to run under FreeBSD 4.9. I am
using R 1.8.1 with latest patches, MySQL 4.0.17 and RMySQL_0.03.tar.gz.
Everything does appear to compile properly. However when I access the
library I get the following error:
library(RMySQL)
Error in dyn.load(x,
On Sun, 2004-02-29 at 12:32, Henric Nilsson wrote:
Hi,
I'd like to remove the axes from a plot produced by stripchart(). However,
when trying stripchart(..., axes = FALSE), I get the error meassage
Error in stripchart(hypokvot1 ~ treatment, jitter, pch = 1, vert = TRUE, :
unused
On Sun, 2004-02-29 at 12:40, Gabor Grothendieck wrote:
Several people have alrady answered you by this time and
in addition to their answers you might also be interested
in CrossTable in package gregmisc.
Gabor,
Thanks for pointing out CrossTable().
Just as a quick heads up/clarification for
Thanks tons. If you get a moment and feel like answering another question:
Regarding the readme.packages file excerpt below: How can I set the R_HOME
path? Is it always the R install directory? Also, is creating libR.a and
libRblas.a a neccessary step in creating ANY dll for use with R?
That's true; however,
CrossTable(x,x)
does give the desired counts and proportions in the margin
line at the bottom. See the row labelled Column Total in
the following example based on Carlos' vector:
sex-c(1,2,2,1,1,2,2,2)
CrossTable(sex,sex)
Cell Contents
|-|
|
On Sun, 29 Feb 2004 15:43:25 -0800, you wrote:
Thanks tons. If you get a moment and feel like answering another question:
Regarding the readme.packages file excerpt below: How can I set the R_HOME
path? Is it always the R install directory? Also, is creating libR.a and
libRblas.a a neccessary
On Sun, 2004-02-29 at 18:27, Gabor Grothendieck wrote:
That's true; however,
CrossTable(x,x)
does give the desired counts and proportions in the margin
line at the bottom. See the row labelled Column Total in
the following example based on Carlos' vector:
sex-c(1,2,2,1,1,2,2,2)
Dear R-list.
I have done a logistic glm using Age as explanatory variable for some
allergic event.
#the model
model2d-glm(formula=AEorSAEInfecBac~Age,family=binomial(logit),data=emrisk)
#predictions for age 30 and 60
preds-predict(model2d,data.frame(Age=c(30,60)),se.fit=TRUE)
# prediction
I agree its overkill but prop.table generalizes to mulitple
dimensions, in which case it becomes comparable to CrossTable,
so I thought it was worth mentioning.
By the way, as the author of CrossTable, perhaps you
might might consider generalizing CrossTable to the 1D
case too?
---
Date:
Hi all,
Regular and avid readers of this column will know that Don Driscoll and
I have recently posted two messages requesting assistance concerning an
apparent failure of se.contrast to produce an se for a contrast. So
far, an ominous silence rings in our ears, but read on Gentle Reader,
and see
On Sun, 2004-02-29 at 19:26, Gabor Grothendieck wrote:
I agree its overkill but prop.table generalizes to mulitple
dimensions, in which case it becomes comparable to CrossTable,
so I thought it was worth mentioning.
By the way, as the author of CrossTable, perhaps you
might might consider
Dear R helpers,
I am interested in doing an overlapping moving block bootstrap (Davinson and
Hinkley(1997)) on financial market data
using R.
I have daily stock returns and have tried
( unsuccessfully using sample and boot function) to create a sample containing
consecutive trading days
For
I wrote the following code:
---
oneindex - function(x) {
summary(x)
}
A - read.table(try.data,
col.names=c(date, lNifty))
summary(A)
oneindex(A$lNifty)
Hello.
I have some trouble with mixed effects in R, similar to problems
that other people had with not nested models and lme, as I
understand from the mailing list archive. Unfortunately, I could
not understand the solutions that were proposed...
I have a data set with response variable (y) and
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