Displaying 7 results from an estimated 7 matches for "annafreni".
2012 Sep 13
5
random sampling inside a dataset
Hi all,
I am wondering if do exist a function in R that allow me to sample or
choose randomly the rows (i.e., samples) inside a given matrix.
Thank you very much in advance.
Cheers,
--
Gian
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2011 Feb 08
1
Error in example Glm rms package
Hi all!
I've got this error while running
example(Glm)
library("rms")
> example(Glm)
Glm> ## Dobson (1990) Page 93: Randomized Controlled Trial :
Glm> counts <- c(18,17,15,20,10,20,25,13,12)
Glm> outcome <- gl(3,1,9)
Glm> treatment <- gl(3,3)
Glm> f <- glm(counts ~ outcome + treatment, family=poisson())
Glm> f
Call: glm(formula = counts ~
2009 Nov 09
1
adding zero to a number vector
Hi !
I'd like to create
a vector
that has this kind of numeration
001
002
003
.
.
.
099
I have looked at format help page but couldn't get
any hint on how to do it.
Thanks
Anna
Anna Freni Sterrantino
Ph.D Student
Department of Statistics
University of Bologna, Italy
via Belle Arti 41, 40124 BO.
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2010 Feb 04
2
Filling a logical matrices with values
Hello !!
I have this problem:
A matrix on True/False
and as many numerical vectors as columns,
but of different length. What I 'd like to get is this:
set.seed(12)
> dat <- as.data.frame(matrix(as.logical(sample(T:F, 30, T)),5,6))
> colnames(dat) <- letters[1:6]
> rownames(dat) <- paste(letters[1:5],1:5, sep="")
> dat
a b c d e f
a1
2012 Jul 12
0
I: ensembleBMA pit function warnings
Hello!
I'm having some problems with
pit function in ensembleBMA. When I run on mu data I have the
same warnings as below, when I type the example(pit).
Any suggestion on how to resolve it?
> library(ensembleBMA)
Loading required package: chron
> example(pit)
pit> data(ensBMAtest)
pit> ensMemNames <-
2012 May 31
1
inverse binomial in R
Hello!
I'm having some trouble
trying to replicate in R a Stata function
invbinomial(n,k,p)
Domain n: 1 to 1e+17
Domain k: 0 to n - 1
Domain p: 0 to 1 (exclusive)
Range: 0 to 1
Description: returns the inverse of the cumulative binomial; i.e., it
returns the probability of success on one trial such
2012 Oct 30
0
ensembleBMA pit function warnings
Hello Chris,
I 've found two other issues
with MAE and CRPS, giving warning when running examples.
I've the same issue on my data.
Hope that you could find some time to take a
look here.
Thank you
Anna
> library(ensembleBMA)
Loading required package: chron
> example(MAE)
MAE> data(ensBMAtest)
MAE> ensMemNames <-