Displaying 20 results from an estimated 400 matches similar to: ""\n" in legend using substitute and as.expression"
2004 Mar 25
3
subsetting based on vector
Dear R users;
I am trying to write a small program which reads in a data set, and selects
observations from certain years before the analysis. I have a problem
including the selection criteria in the header of the program.
Here is the problem;
dataFIT<-function(MODEL, MARGINS, yearConsidered){
library(foreign
CovPaper<-read.spss("C:/Data/data.sav")
NewData <-
2005 Mar 23
4
sampling from a mixture distribution
Dear R users,
I would like to sample from a mixture distribution p1*f(x1)+p2*f(x2). I
usually sample variates from both distributions and weight them with their
respective probabilities, but someone told me that was wrong. What is the
correct way?
Vumani
2003 May 09
1
manipulating elements of a matrix
Dear R users:
I have the following matrix.
0 1 1
0 1 0
2 1 0
3 0 0
I would like to spread the matrix such that whenever the row sum is greater
than 1 the row is repeated the number of times given by the row sum.
Furthermore I would like to split the following cases:
0 1 1
such that it map to the following matrix
0 1 0
0 0 1
such that each row adds up to 1.
I have no problems with cases
2006 Mar 08
2
fitting a distribution using glm
it is easy to fit a distribution using fitdistr
poisdata <- rpois(n = 100, lambda = 2)
poismle <- fitdistr(poisdata, "Poisson")
poismle
but i would like to know whether its possible to get an identical result
using glm. I use
poistab <- data.frame(table(poisdata))
colnames(poistab) <- c("width","freq");
poistab[,"width"] <-
2011 Jul 21
3
R versions and PostScript files
Dear R users,
I have a desktop computer and a laptop, both of them with Ubuntu Lucid. The
former has R2.10 installed from Ubuntu repositories (this is the most recent
version in the repositories), while the latter has R2.13 from the CRAN
repositories.
I noticed that postscript files generated with R2.10 are "better" than
files generated with the latest release of R, in particular for
2003 Jan 22
1
something wrong when using pspline in clogit?
Dear R users:
I am not entirely convinced that clogit gives me the correct result when I
use pspline() and maybe you could help correct me here.
When I add a constant to my covariate I expect only the intercept to change,
but not the coefficients. This is true (in clogit) when I assume a linear in
the logit model, but the same does not happen when I use pspline().
If I did something similar
2003 Jun 16
1
Hmisc multiple imputation functions
Dear all;
I am trying to use HMISC imputation function to perform multiple imputations
on my data and I keep on getting errors for the code given in the help
files.
When using "aregImpute" the error is;
>f <- aregImpute(~y + x1 + x2 + x3, n.impute=100)
Loading required package: acepack
Iteration:1 Error in .Fortran("wclosepw", as.double(w), as.double(x),
2004 May 27
2
manipulating elements of a vector
Dear R users;
I would like to convert a series of vectors to matrices in the following
way;
(2,1,1) to a matrix
1 0 0
1 0 0
0 1 0
0 0 1
The idea is that the column sum of the matrix should be equal to the
elements of the vector.
Thanks.
Vumani
2005 Aug 04
2
drawing a network digraph
Dear R users,
I have a matrix with 2 columns with the variables: "daughter index", "mother
index". I would like to draw a network digraph using this data, where each
daughter is connected to a mother and between the connections inlcude a
circle with the information on the indices ("daughter index", "mother
index"): i.e. something similar to graphs
2010 Mar 18
1
R takes long time to open
Hello.
Until today I've been using R2.9 and since today R2.10 (on a PC).
In both of them it takes about 20 sec for the prompt to appear IN R
console after I start R. And every time it says: "Previous saved work
space restored" - even if I have not saved any workspace or, in case
of R2.10 - even though I have not used it once.
In the older versions - R would start within 2-3 sec.
Is
2006 Jun 29
1
using "rbinom" in C code gives me erroneous results... random variable is not random (always zero)...
Dear Listers,
I am trying to use "rbinom" in my C code, but i always get zeros as output no matter the probability. Am not sure what I am doing wrong because the function has worked before. Attached in an example. Noticed that "rbinom" expects 'n' to be REAL.
Regards, Vumani
R 2.3.1 (2006-06-01)
Windows XP
Gcc
/* Called this file binom.c and then ran rcmd shlib on it
2006 Jul 05
1
i suspect that there a memory leak in "vmmin"?
Dear listers,
Am currently using MCMC approaches to estimate some parameters of my model.
One parameter has to be updated using a tuned gamma distribution. So at each
iteration I estimate the mean and variance of the density of the gamma
approximation using "vmmin" (i also supply the gradient argument). For
moderate replications the procedure works, but if I increase them R crashes.
2005 Nov 21
2
Multinomial Nested Logit package in R?
Dear R-Help,
I'm hoping to find a Multinomial Nested Logit package in R. It would
be great to find something analogous to "PROC MDC" in SAS:
> The MDC (Multinomial Discrete Choice) procedure analyzes models
> where the
> choice set consists of multiple alternatives. This procedure
> supports conditional logit,
> mixed logit, heteroscedastic extreme value,
2003 Jan 20
1
R analogue
Dear R users:
Is there any R analogue for the S+ function "na.gam.replace". I would like
to make an interaction of a categorical and smooth continuous covariate.
Thanks.
Vumani Dlamini
Central Statistical Office
Swaziland
2007 Jun 20
2
"xtable" results doesn't correspond to data.frame
Dear useRs,
Am trying to use xtable on the following data.frame and I don't get what I
expect:
example.table <- data.frame(rbind(
c("Gender"," "," "," "),
cbind(rep(" ",2),c("Male","Female"),c(3.0,4.0),c(3/7,4/7))
))
colnames(example.table) <- c(" "," ","number of
2011 Feb 22
1
error with 'hash' library
Hello,
I'm using R2.10 on Windows 2000 and I'm having trouble installing the 'hash'
library. This is the error I get:
> library(hash)
_ _
___ _ __ ___ _ __ __| | __ _| |_ __ _
/ _ \| '_ \ / _ \ '_ \ / _` |/ _' | __/ _' |
| (_) | |_) | __/ | | | (_| | (_| | || (_| |
\___/| .__/ \___|_| |_|\__,_|\__,_|\__\__,_|
2003 Jan 17
2
Re: Universal legend in plot
Dear R-users:
I asked a question on how I can have a universal legend in a plot and
received the following result. I tried using "layout" but I can't seem to
work on the "empty" plot (where I have to have the legend). I tried "oma"
but I couldn't improve the quality of the plot, and that I didn't know how
to specify all the line types using the
2003 Aug 20
1
query on converting survey data from one structure to another
Dear R users,
I am trying to convert a dataset from one format to several rectangular
datasets. A consultant helped design the data entry program for our survey
using Delphi/Pascal and for each household the information is stored in a
file called "EA-HM-HH.TXT" where EA is the enumeration area number, HM is
the homestead number and HH is the household number. Within this file the
2010 Feb 05
1
unique function works funny
I have 3 nested functions, the core function goes like this:
listx<-function(x,tox)
{
xt=table(x)
wa=sort(unique(x,fromLast=FALSE))
print(xt)
print(wa)
......
return(kk)
}
listx get called in functionB, and functionB get called in functionC.
When I test functionB, the listx function works just fine. When I call
functionB from functionC, strange thing happened:
My result for xt:
0.07 0.17
2010 Feb 23
2
export graphics for editing in Illustrator
Dear R users,
I would like to edit my graphics in Illustrator. I know that I can set
up almost every graph parameter in R, but the time I will spend
searching for the correct settings might not be worth since I'm quite
used to Illustrator and since I will in any case use Illustrator to
prepare for publication.
Up to now, I've used savePlot() with type=("eps") but I'm