 | | | rhelp | | hello
I don 't understand what 's happen just before the textConnection function runs good but now it doesn 't run
> Line[1]
[1] "if C325 . then C743 (C152/C103)*100| else C743 (C152/C325)*100 "
> textCDear peRsons
I have a Sweave document which demonstrates the usage of step()
function. With current R version 2.5.0 the step() function was changed
so that the heading of trace TRUE output for each Dear R users
I 'm having some problems trying to create a routine for a bootstrap
resampling issue. Suppose I 've got a dataset like this
Header inr inf ..... weeks ...
Hi
How did you try to fit the model?
library(nlme)
> DNase$lconc <-log(DNase$conc)
> head(DNase)
Grouped Data density ~ conc | Run
Run conc density lconc
1 1 0.04882812 0.017 -3.01r-help-bounces@(protected) napsal dne 15.05.2007 08 41 27
>
> Dear all
>
>
> I would need a function which convert small letter into capital letter
(at
> least the first letter of a chara
Dear all
I would need a function which convert small letter into capital letter (at
least the first letter of a character variable).
Does such a function exist in R ?
Thanks by advance
Jessica
Dear colleagues
This is not strictly a R question but more a methodology-related question.
I have the following linear model Y X\beta + e.
Pretty standard stuff but additionally X is squaTo differentiate between groups on the barplot I guessed that col
colr[test$group] would have worked. How can I do this?
Many Thanks
Murray
test <-
structure(list(patient 1 20 score c(100 Hi
I seem to be unable to get a mixed legend that has lines *or* polygons
(not both). For example
ppi <- seq(0 2*pi length.out 21)[-21]
frame()
plot.window(ylim c(-5 5) xlim c(-5 5) asp 1)
polygon
Dylan
You might like the validate() function in the Design library. It validates
several model indeces (e.g. R^2) using resampling. There is some
discussion on this function (as well as on validaHi there
Can someone help me with installing R on Unix? I tried the followings but
failed
(1) I downloaded
http //cran.cnr.berkeley.edu/bin/linux/debian/stable/r-base_2.5.0.orig.tar.g
z and unzippeHi
I have developed a logistic regression model in the form of (factor_1~ numeric
+ factor_2) and would like to perform a cross-validation or some similar
form of sensitivity analysis on this mod
I am developing R code to implement the adaptive design approach of Schafer
and Muller (Stats in Med 2001) for a survival endpoint. Would anyone be
interested in collaborating with me on this code? I am using the "graph " package which has a function called union()
that acts on graph objects. There is also a {base} function called
union(). How do I explicitly specify union {graph} instead Rajarshi Guha napsal(a)
> On May 14 2007 at 2 48 PM new ruser wrote
>
> > #I wish to create a "list of three dataframes " ( "results2 ") from a
> > "list of two dataframes " (temp) and a dataframe
On May 14 2007 at 2 48 PM new ruser wrote
> #I wish to create a "list of three dataframes " ( "results2 ") from a
> "list of two dataframes " (temp) and a dataframe ( "c ")?
>
> #Please advise.
>
>#I wish to create a "list of three dataframes " ( "results2 ") from a "list of two dataframes " (temp) and a dataframe ( "c ")?
#Please advise.
a <- data.frame(x c(1 2 3) y c(5 7 9))
b <- data.frame(x c(
Is there a way to do hierarchical (bayesian) logistic regression in R the
way we do it in BUGS? For example in BUGS we can have this model
model
{for(i in 1 N) {
y[i] ~ dbin(p[i] n[i])
loHi
I happened to need generate the following
> t1
V1 V2 count count2
1 1 11 2 3
2 1 12 2 2
3 2 11 1 3
4 3 13 3 1
5 3 11 3 3
6 3 12 3 2
fHi everyone
I was wondering if there is anything already implemented for
efficient ( "row-wise ") computation of group-specific trimmed stats
(mean and sd on the trimmed vector) on large matrices.Hello all
Is there a way reducing the number of characters in a list so that just
the left n numbers of characters is given?
For example If I have a list listnames which consists of 4 strings of
Biostatistician/Statistical Programmer/Data Analyst
The Department of Biostatistics and Computational Biology University
of Rochester Medical Center is seeking a Biostatistician/Statistical
ProgHi!
I tried to fit four-parameter logistic model (SSfpl) to DNase data based on log(conc) (mixed model) but I never get convergence. Can anyone help me?
Thanks
Salom�
Hi
I want to create an R package with an Rnw file and distribute it.
However I have restrictions on certain parts of my data so I have a
makefile which deletes the specific data upon creation ofDo you mean you want to separate out each sequence of characters that does
not contain whitespace? scan can do that
> Line <- "if C325 . then C743 (C152/C103)*100| else C743 (C152/C325)*100 "
> scanYou dont type this command in RGui but in you shell or dos command prompt
Justin BEM
Elève Ingénieur Statisticien Economiste
BP 294 Yaoundé.
Tél (00237)9597295.
----- Message d 'origine ----
De I saw the R-help to run some R programs in batch I used it like this
> R CMD BATCH C /Documents and Settings/melyakhlifi/Bureau/calcara.r
Erreur erreur de syntaxe dans "R CMD "
but without success!Hello
Does anyone know if there is a command in R similar to "xtpoisson " in
STATA? I want to fit a conditional fixed-effects Poisson model and
maximize a conditional likelihood so I need something This one is shoe in to Double by end of week
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Hot News RHello allR
How to access R^2 from lme object?
or how to calculate it?
( one detail my model do not have a intercept )
thanks in advanced
Cleber
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