similar to: Bounded Density Estimation

Displaying 20 results from an estimated 2000 matches similar to: "Bounded Density Estimation"

2005 Jul 05
0
lowess output looks wrong (PR#7891)
Just noticed nobody has commented on this, so I took a look, and I can't see the problem (2.1.0 looks the same as 2.1.1 to me). What is supposed to be wrong? Duncan Murdoch On 5/23/2005 2:35 PM, pelzc at ohsu.edu wrote: > Full_Name: Carl Pelz > Version: 2.1.0 & 2.0.1 > OS: Windows 2000 > Submission from: (NULL) (137.53.64.158) > > > # Paste this all into an R
2012 Jan 10
1
error in Recursive
Hi I need help in the recursive problem. this is my code #Generate two random Numbers minval=20 maxval=100 cutoffValue=50 optVal<- function(cutoffValue,minval,maxval) { x=runif(2) x=x*cutoffValue for( i in 1:2) { if(x[i] < 30 || x[i] >60) # checking it falls between the range { optVal(cutoffValue,minval,maxval) } } return(x) }
2007 Sep 04
4
Q: selecting a name when it is known as a string
I am 100% certain that there is an easy way to do this, but after experimenting off and on for a couple of days, and searching everywhere I could think of, I haven't been able to find the trick. I have this piece of code: ... attach(d) if (ORDINATE == 'ds') { lo <- loess(percent ~ ncms * ds, d, control=loess.control(trace.hat = 'approximate')) grid <-
2000 Jun 20
1
density estimation in two dimensions
Hello, I am a newbie to R and the subject of density estimation in two dimensions or more. I would like to have some advice concerning a comparison between the R packages for density estimation in bivariate or higher order problems; I mean explicitly the packages: 1) ash 2) KernSmooth 3) locfit 4) sm. My specific problem now is having a set of numerical pairs (x_i, y_i), arising from a
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 ... Thank you for your help and your time.
2004 Nov 03
1
Kernel Density estimation - locfit package
Hello there, I am presently using the locfit package in "R" and would appreciate some help here. Could anyone tell me tell me how I can obtain the various components (x and y values)of the density estimation after using the "R" command "locfit"? For example, with the command "fhat<-density(somename)" I can obtain the x and y values by simply calling
2003 Oct 22
1
2 D non-parametric density estimation
I have spatial data in 2 dimensions - say (x,y). The correlation between x and y is fairly substantial. My goal is to use a non-parametric approach to estimate the multivariate density describing the spatial locations. Ultimately, I would like to use this estimated density to determine the area associated with a 95% probability contour for the data. Given the strong correlation between x and
2007 Mar 23
1
objects of class "matrix" and mode "list"?
Hello everyone, I cannot seem to find information about objects of class "matrix" and mode "list", and how to handle them (apart from flattening the list). I get this type of object from using sapply(). Sorry for the long example, but the code below illustrates how I get this type of object. Is anyone aware of documentation regarding this object? Thanks very much, Stephen
2006 Mar 13
1
Density Estimation
Hallo I am trying to use the package LocFit to follow the example given in an Introductory note of C Loader concerning density estimation. It involves the "geyser" dataset (107 observations on durations, inlc in the package). I have tried the following (using the latest version of R): fit.of <- locfit(~geyser,flim=c(1,6),alpha=c(0.15,0.9)) plot(fit.of,get.data=T,mpv=200) This
2002 Mar 31
1
How to get the datapoints of an density estimationwithlocfit?
Hello!! At first thank you all for your suggestions and your help. But I would like to get another group of datas from the density estimation. I don't know if these information are provided by locfit or I should use an other function like plot(). Description: Each number between 1 and 100 (only integer) for example should have only one density value. But I also would like to have the density
2009 Jun 26
1
The Claw Density and LOCFIT
I am trying to reproduce Figure 10.5 of Loader's book: Local Regression and Likelihood. The code provided in the book does not seem to work. I have managed (a while ago) to get the accompanied R-code for the figures in the book (file called lffigs.R) from somewhere - cannot find it on the web anymore. The code in the .R script file does not work either. Could anybody please direct me in
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-dimensional fitting. >>I=B4d be
2002 Jul 29
1
density estimation on 2-D bounded domain
Dear R experts, density estimation on a 2 dimensional bounded domain --------------------------------------------------------------------- I am currently trying to estimate the probability density (PD) of cancers within the breast using the sm library with the routine sm.density Of course a practical PD must be limited by the curve of the breast outline. I don't have a clue after perusing
2005 Dec 15
0
bivariate kernel density estimates at point locations ( r ather than at grid locations)
You can try `locfit', though it does local likelihood, rather than garden-variety kernel density estimation. Here's an example: library(locfit) data(cldem) den.fit <- locfit(~ x1 + x2, data=cltrain) predict(den.fit, newdata=cltrain) Andy From: Strickland, Matthew > > Hi, > > My data consists of a set of point locations (x,y). > > I would like to know if there
2019 May 15
0
Wine release 4.0.1
The Wine maintenance release 4.0.1 is now available. What's new in this release (see below for details): - Various bug fixes - Sinhala and Tamil translation updates The source is available from the following locations: https://dl.winehq.org/wine/source/4.0/wine-4.0.1.tar.xz http://mirrors.ibiblio.org/wine/source/4.0/wine-4.0.1.tar.xz Binary packages for various distributions will
2007 Aug 31
3
data frame row manipulation
Hello, struggling with the very basic needs... :( any help appreciated. #using the package doBY #who drinks how much beer per day and therefor cannot calculate rowise maxvals evaluation=data.frame(date=c(1,2,3,4,5,6,7,8,9), name=c("Michael","Steve","Bob", "Michael","Steve","Bob","Michael","Steve","Bob"),
2010 Mar 06
2
memory error in for loop
hi, I have been attempting to run this script and am getting some strange results. The script connects to a database and retrieves a series of tables, using sequential sql statements. I have tested all of the sql statements in the PostGreSQL terminal and they all return the desired results. I place each table into a list and run a FOR loop for 'i' in the list. The script generates
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
2005 Oct 05
1
how do I write Rd file for this?
Dear R-devel, I'm working on Prof. Loader's new version of locfit to try to get it pass R CMD check. I'm almost there, but I have a problem with some Rd files that I hope some one can help me resolve. Here's an example: In the package there's a function called locfit.censor(). This function can be used in a few different ways: locfit.censor(x, y, cens, ...)
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 then tried to test it with the