Displaying 20 results from an estimated 66 matches for "locfit".

2002 Mar 29

2

How to get the datapoints of an density estimation with locfit?

Hello!!!
I'm just a beginner of R.
I work with locfit to get the density from an numeric vector. It looks good when I plot the graph, but I need the output data of locfit.
For example I need somthing like that (only integer values for the input):
numeric vector (input of locfit) density (output of locfit)
1 0.05....
2 0.04..
3 0.01
...
Th...

1998 Jun 03

0

R-beta: locfit package.

I was wondering if someone could help me with a problem getting locfit running.
I am running Digital Unix 3.2D on an alphastation, with R 0.61.1
I downloaded the CRAN distribution of locfit. I had no problems installing it
with R INSTALL (I installed it into my library rather than the default base
library; the output is attached at the end of this email message).
I t...

2012 Mar 19

2

fitted values with locfit

Dear memberships,
I'm trying to estimate the following multivariate local regression model using the "locfit" package:
BMI=m1(RCC)+m2(WCC)
where (m1) and (m2) are unknown smooth functions.
My problem is that once I get the regression done I cannot get the fitted values of each of this smooth functions (m1) and (m2). What I write is the following
library(locfit)
data(ais)
fit2<-locfit.raw(x=l...

1998 Mar 17

0

R-beta: locfit -> CRAN

The locfit library is now available through CRAN, in the
Contributed R Code directory. Locfit fits local regression,
likelihood and density estimation models, in the spirit
of loess but with many additional features. To install,
unpack the locfit_19980309.tar.gz file, and
R INSTALL locfit
Most of the functio...

1998 Mar 17

0

R-beta: locfit -> CRAN

The locfit library is now available through CRAN, in the
Contributed R Code directory. Locfit fits local regression,
likelihood and density estimation models, in the spirit
of loess but with many additional features. To install,
unpack the locfit_19980309.tar.gz file, and
R INSTALL locfit
Most of the functio...

2000 Aug 31

2

Problem with R INSTALL locfit on DEC alphaev56-dec-osf4.0d

Dear all,
usually I work under linux, but I tried to install R-1.1.1 on
our alpha's which worked well.
However, installation of the locfit package produced the following
warning:
---------%<----------------
Installing package `locfit' ...
libs
/vol/bin/gcc -I/vol/math/R/include -I/usr/local/include -mieee -g
-O2 -c S_e
nter.c -o S_enter.o
S_enter.c: In function `basis':
S_enter....

2000 Dec 06

0

Locfit

Dear,
I am doing some statistics analysis using R software. I am currently trying
to implement your library locfit. I am using Win NT and R1.1.1 version
obtained on the following Webmaster :
http://cm.bell-labs.com/cm/ms/departments/sia/project/locfit/index.html
When trying to run it, the following message appears:
**********
Error in .C("guessnv", nvm = integer...

2005 Jul 10

0

package loading smooth.lf (LOCFIT), couldn't find functio n "smooth.lf"

The version of locfit on the web site mentioned apparently has been revised
by Prof. Loader, and is newer than the CRAN version that I have been
maintaining. If Prof. Loader is OK with it, I will take a look and see if I
can get the new version into CRAN-conforming form and upload to CRAN.
Meanwhile, make sure you'...

2000 Feb 22

2

Some problems with R and/or locfit

Hello,
Here is a problem I have had trying to install locfit, the package for
R.
I have already contacted Clive Loader who thinks the problem has more to
do with R than locfit, so here is the point :
The version of R I am currently running is R-base-0.90 that I installed
using the R-base-0.90.1-1.i386.rpm package.
I dowloaded the locfit package available at...

2004 Jun 20

1

problem locfit

I have a problem with the use of locfit with censured data, when I carry out locfit by:
fitbmt<-locfit(~recur,data=BMTAGE11,cens=df.status,family="hazard",alpha=0.5)
it does not give me any message, but if I want to obtain the graph or even if I ask for (fitbmt) made it gives me the following message:
> fitbmt31
Prob...

2004 Oct 12

1

locfit confidence intervals

hi,
after
m=locfit(y~x,..........., family=binomial)
plot(m,band="local") gives me a plot of locfit's result with a confidence
interval around it. i would like to get the actual values that are being
used to plot the lines in this figure.
i tried using predict, but the standard error it returns when...

2010 Dec 10

0

locfit weights not working as expected

Hello! I am having a problem understanding what the weights option in
the locfit command of the locfit package is doing. I
have written a sample program which illustrates the issue (below). The
example involves using bootstrap however, that is not my main
goal but it illustrates where my problem lies.
As you know, to compute a bootstrap estimate of a particular quantity
using...

1998 Mar 26

1

R-beta: problem with locfit

I installed the locfit package under Linux (gcc 2.7.2). Installation
was ok but
> x <- runif(200)
> y.compl <- 10*x*x*rgamma(200,3)
> med.y <- median(y.compl)
> cens <- ifelse(y.compl<=med.y,1,0)
> y <- cens * y.compl + (1-cens)*med.y
> library(locfit)
> m <- locfit(y~x,cens=cen...

2007 Nov 29

0

LOCFIT:Automatic bandwidth selection for kernel regression

Hello all!
I have recently started using the LOCFIT package, together with Clive
Loader's book. I need to implement some method for automatic (plug-in)
bandwidth selection in a multivariate kernel regression. From the book, and
the LOCFIT documentation, it is not clear whether this is possible. As far
as I can see, the only time the various...

2002 Apr 07

0

help with the "pch" option in plot.locfit

Dear All,
I am trying to plot a smoothed hazard funciton using the LOCFIT library.
Suppose my locfit model is "loc.fit", my plot command looks like this:
plot(loc.rw, lty="solid", pch=1, xlab="Age at Risk",
ylab="Hazard Rate", ylim=c(0, .5), lwd=2)
What's interesting is that whichever number I used in the "pch=" opt...

2012 Mar 17

0

multivariate locfit regression

Dear memberships,
I'm trying to estimate the following multivariate local regression model using the "locfit" package:
BMI=m1(RCC)+m2(WCC)
where (m1) and (m2) are unknown smooth functions.
My problem is that once I get the regression done I cannot get the fitted values of each of this smooth functions (m1) and (m2). My program is the following:
library(locfit)
data(ais)
fit2<-locfit.r...

1998 Dec 17

0

Problem using LOCFIT with 3d density & plot

I just copy parts of my correspondence with the author of Locfit:
>>Dear Mr <...>,
>>I have tried to apply locfit to a three dimensional data set for
density
>>estimation.
>>The algorithm seems to work well but when I want to plot the result,
the
>>routine "levelplot" is missing.
>>This is not the case in 2-di...

2007 Jun 06

0

Meaning of locfit warnings "procv: parameters out of bounds"?

I'm getting the following warning from locfit:
Warning: procv: parameters out of bounds
Does anyone know what this means? (I haven't found anything about it in
the locfit documentation or the list's archives).
thanks,
Barnet Wagman

2009 Feb 27

0

Help: locfit (local logistic regression)

Hi,
I am running a local logistic regression using locfit. Now, I want to choose
the bandwidth using cross-validation. I don't know if there is an additional
command to do so or if I can do it in the locfit. I would appreciate any
help about this matter. Thank you.
Regards,
[[alternative HTML version deleted]]

2000 Feb 15

1

locfit for R 0.99.0

I've updated the locfit library, with R 0.99.0 compatability and other
changes. The new version is propagating through CRAN, or available
from my webpage, http://cm.bell-labs.com/stat/project/locfit.
Also with regard to distribution accuracy, these might be of interest -
http://cm.bell-labs.c...