Displaying 20 results from an estimated 1000 matches similar to: "Goodness-of-fit"
2001 Aug 08
1
Package for variable clustering
Dear R users:
is there a package, similar to varclus in SAS or varclus in S, ported or
written for R? Also, is there any other package in R that was designed
for
grouping the variables under different measures of distance (in cases
where data is non-Gaussian, autocorrelated, and so on).
Janusz.
--
** Janusz Kawczak **
** UNC at Charlotte,
2001 Nov 28
2
Why are looping variables not local?
Hello,
I've had a quick look on the list and can't find an answer to this niggle.
Whilst debugging some code, I noticed that looping variables in R are not
local to the loop as seams common in procedural languages.
For example consider the following piece of code:
for(i in 1:3){
cat(i,"")
for(i in c("a","b","c")){
cat(i,"")
2000 Dec 22
2
factor analysis
I have put a preliminary version of factanal in a package at
http://www.stat.ox.ac.uk/pub/R/fa_0.1-1.tar.gz
and would appreciate feedback. In particular
1) What else you might want. Please give precise references with
algorithmic details, as that has been a major problem for me.
2) Some convincing examples of factor analysis. Most (literally) of the
ones I have looked at are local maxima, not
2001 Sep 03
8
mixture distributions
Dear List,
I am looking for a possibility to fit a mixture model under R using
maximum likelihood estimation.
Venables and Ripley describe a solution working under S+ (in MASS, 3. ed.,
p. 263) which requires the D system function and deriv3. This solution does not
seem to be portable to R or at least I do not realise how.
Is there anyone who
a) knows how one could make the MASS-method run under
1999 Mar 03
4
xfig device
Hi, I am VERY interested in getting the xfig driver so that I can edit
graphical output from R. Searching through the mail archives and reading
documentation isn't helping. Is there or isn't there a working driver for
this purpose. How can I get it? I tried looking at the development version
of the tarballs, but I didn't find anything that looked promising in there.
Also, does
2002 Dec 06
6
fast code
Hello,
I have two vectors x1 and x2 both in increasing order.
I want to select the x1[j]th entry which is the max min of the x2[i]th
entry. I can do this using if and for statements but is there a quick way
to do it without running a loop?
Thank you in advance,
Pantelis
2003 Oct 15
2
Solaris 2.9
I've compiled the 1.8.0 R on Solaris 2.9 and when trying to use
plot command I get the Bus error and a core dump. Anybody experienced
something like this? If yes, what should I patch?
Janusz.
[[alternative HTML version deleted]]
2006 Dec 20
1
help for multinominal logistic regression code
Dear all,
firstly I would like to say I am a beginner user for R and also naturally a new member of this mail list. This means I have newer read previous mails before.
I need a small help for my analysis. I want to perform a multinominal logistic regression for my data set. But as I told before I am a beginner for R and I couldn't find the code for multinominal logistic
2002 Nov 22
1
Scatter plot with labels
Hi,
I have data in form: label, x, y. How can I make a scatter plot from the
data, so that the label will be just next to the x, y point?
Tomek
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2000 Oct 24
2
multinominal probit & logit
Dear everybody!
Are there algorithms for multinominal logit/probit available for R? Is it my
fault that I cannot find these in CRAN? Has somebody programmed these?
with best wishes
Ott Toomet
Ott.Toomet at mail.ee
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1998 Jan 08
1
No subject
Is there anyone who succeeded in installing R-0.61 on a IBM RISC/6000
under AIX?
Juergen.
=======================================================================
Juergen Dippon Mathematisches Institut A, Universitaet Stuttgart
Pfaffenwaldring 57, 70569 Stuttgart
1997 Apr 17
2
R-beta: R: CART
Has anybody ported the Classification and Regression Trees package to R?
Stefano
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2006 Jan 11
1
Log-likelihood for Multinominal Probit Regression Model
I use mnp to run a multinominal probit regression model, but the summary
doesn't contain the model statistics, such as the log-likelihood and degree
of freedom, for the assessment of the goodness-of-fit of the fitted model.
Is there any way that I can generate these statistics for the fitted model
in R?
Many thanks in advance!
SC
2010 Feb 14
1
mlogit function cut off formular
I'm trying to fit a multinominal logistic model using package mlogit. I have
15 independent variables. The code looks like this:
m<-mlogit(score~0|f1+f2+f3+f4+f5+f6+f7+f8+f9+f10+f11+f12+f13+f14+f15, data,
reflevel="1")
And it gives the following error message:
Error in parse(text = x) :
unexpected ')' in "score ~ 0 + alt:(f1 + f2 + f3 + f4 + f5 + f6 + f7 + f8
+ f9
2010 Oct 03
2
A problem about nomogram--thank you for you help
dear professor:
I am a doctor of urinary,and I am developing a nomogram of bladder tumor.Now I have a problem about this.
I have got the result like this through analysing the dataset "exp11.sav" through multinominal logistic regression by SPSS 17.0.(the Sig. is high,that is good ,it is just aexperimental data )
Parameter Estimates
Ya
B
Std. Error
Wald
df
Sig.
Exp(B)
95%
2018 Feb 19
3
gbm.step para clasificación no binaria
Gracias Carlos. Hasta donde yo entiendo si las hay:
El argumento family puede ser:
"gaussian" (for minimizing squared error); por lo que tiene que ser numérica
"bernoulli" (logistic regression for 0-1 out-comes); binaria por narices
"poisson" (count outcomes; requires the response to be a positive
integer); numérica también, pues.
La única podría ser
2013 Feb 04
1
Subfolders problem
I have moved from dovecot 1.x to 2.x and I have big problem with
subfolders.
When I'm moving subfolder with other subfolders is moving only main
subfolder, without subfolders, example :
mail-storage-1 /var/vmail/home/adamskitest/mdbox/mailboxes # find | egrep
-e "janusz|jarek"
./jarek
./jarek/dbox-Mails
./jarek/dbox-Mails/dovecot.index.log
./jarek/jarek2
./jarek/jarek2/dbox-Mails
2010 Oct 04
1
I have aproblem about nomogram--thank you for your help
dear professor:
I have a problem about the nomogram.I have got the result through analysing the dataset "exp2.sav" through multinominal logistic regression by SPSS 17.0.
and I want to deveop the nomogram through R-Projject,just like this :
> n<-100
> set.seed(10)
> T.Grade<-factor(0:3,labels=c("G0", "G1", "G2","G3"))
>
2018 Feb 19
2
Gráficas 3D
Gracias Carlos, mi idea es construir un cono, un cilindro u otros cuerpos
geométrico y luego graficarlos. Alguna idea de como empezar?
Muchas gracias como siempre
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2018 Feb 19
3
gbm.step para clasificación no binaria
Hola de nuevo. Se me olvidaba la principal razón para utilizar
gbm.step del paquete dismo. Como sabéis, los boosted si sobreajustan
(a diferencia de los random forest o cualquier otro bootstrap) pero
gbm.step hace validación cruzada para determinar el nº óptimo de
árboles y evitarlo. Es fundamental.
La opción que me queda, Carlos, es hacerlo con gbm, pero muchas veces,
y usar el