similar to: confidence variability bands for kernel estimators

I'm using the package 'locfit' for nonparametric regression. This package contains the function 'scb' to compute simultaneous confidence bands. The variance of the data is unknown. Up to now I compute a fit with 'locfit'. Afterwards an estimate of the residual variance is computed by the function 'rv'. The weights in the 'scb'-function are set 1/sigma^2

Dear R users, I have a reproducible data and try to create new variable "clo" is 1 if know variable is equal to "very well" or "fairly well" and getalong is 4 or 5 otherwise it is 0. rep_data<- read.table(header=TRUE, text=" id1 id2 know getalong 100000016_a1 100000016_a2 very well 4 100000035_a1 100000035_a2 fairly

At the risk of ridicule for my deficient linear algebra skills, I ask for help using the solve.QP function to do portfolio optimization. I am trying to following a textbook example and need help converting the problem into the format required by solve.QP. Below is my sample code if anyone is willing to go through it. This problem will not solve because it is not set up properly. I hope I

Using Sweave on Windows (MikTeX 2.5 and R 2.4.1), I've ran into a bit of a problem with the tex -> DVI process. First, I've corrected the common \usepackage error by using \usepackage{"C:/Program Files/R/R-2.4.1/share/texmf/Sweave"} to get around the spacing problem. That is, LaTeX is finding the Sweave.sty, which has been a common problem in past postings here. However, my

Rd.sty defines \newlength{\middle} which seems to be in conflict with the my latex installation. Here is a minimal example: \documentclass{article} \newlength{\middle} \begin{document} \end{document} It runs fine on a Linux box: carp:136% latex test.tex This is TeX, Version 3.14159 (Web2C 7.3.1) (test.tex LaTeX2e <2000/06/01> Babel <v3.7h> and hyphenation patterns for american,

Dear R Users, I am using R 2.14.1 on windows How to read netcdf files in R ? Which packeges do we need to install for this, and what commands are used for reading netcdf files. Thanks, Best Regards, Yogesh Tiwari -- Yogesh K. Tiwari (Dr.rer.nat), Scientist, Centre for Climate Change Research, Indian Institute of Tropical Meteorology, Homi Bhabha Road, Pashan, Pune-411008 INDIA Phone:

Dear R Users, Before running ksmooth( ), a suitable bandwidth selection is needed. I use some functions for this task and receive these results for my data: width.SJ(y,nb=100,method="ste") : 40.25 bcv(y,nb=100) : 40.53 ucv(y) : 41.26 bandwidth.nrd(y) : 45.43 After implementing the function ksmooth(x,y, bandwidth= each of abovementioned bandwidths), I have some NAs

Hello! I think about migrate from FreeBSD to Linux because I need DRBD for clustering. I want to use Debian Lenny but run on some problems. I want near latest Dovecot packages. Native repos are too old. Backports seems to don`t have a Sieve&Managesieve support and we need it(am I wrong?). Stephan Bosch auto packeges is not for production. How could I solve this without make own

I created a tex file following the example in the Sweave help which produced the following files in my working directory. Sweave-test-1-006.eps Sweave-test-1-006.pdf Sweave-test-1-007.eps Sweave-test-1-007.pdf Sweave-test-1.tex When I run latex on this, I get a latex error, log file below. I am running R 2.1.1 on Windows XP. I have installed "small MiKTeX" and I have added

Apologies in advance if my comments don't help, in which case, no need to respond, but I noted in ?ksmooth: "bandwidth the bandwidth. The kernels are scaled so that their quartiles (viewed as probability densities) are at ? 0.25*bandwidth." So, could this be a source of the discrepancies you cited? Given that ?ksmooth explicitly says: "Note: This function was implemented for

Hi, I run into a problem with "R CMD Rd2dvi" command: it gives me "File `Rd.sty' not found" error (See the output message on the bottom). I get the same error when running "RCMD check". My system is: Windows 2000, R version 2.0.1, MiKTeX version 2.4. I do have a Rd.sty file in R_HOME/share/texm directory. I looked through newsgroups for any related discussions

Dear Sir, Madam, or to whom this may concern, my name is Jan Failenschmid and I am a Ph.D. student at Tilburg University. For my project I have been looking into different types of kernel regression estimators and corresponding R functions. While comparing different functions I noticed that stats::ksmooth returned different estimates for the same bandwidth as other kernel regression estimators

I am working with a model that I have to estimate a nonparametric function. The model is partial linear i.e. Y=X$\beta$ + f(z) + $\epsilon$ I am using the ' double residual methods' Robinson (1988) Speckman (1988) where I estimate a nonparametric function for each of the parametric variables in terms of the nonparametric one i.e. X[,i]=g(Z)+ u this is done because I need the $E(

Hi Every Body, I don't know why some regression functions have no related prediction function. For example lowess, loess, lokerns, lpridge, lpepa, and ksmooth. What could help? Is there any global or wrapper function so that can help? Regards, Amir Safari --------------------------------- [[alternative HTML version deleted]]

I'd like to superimpose a ksmooth() onto a barplot(). My data is: > d 2009-06-20 2009-06-21 2009-06-22 2009-06-23 2009-06-24 2009-06-25 2009-06-26 2009-06-27 2009-06-28 2009-06-29 2009-06-30 2009-07-01 2009-07-02 Same Breed (B) 12.64 21.08 13.52 12.51 13.71 9.91 14.24 7.18 11.81 5.92 12.04 17.96

Hello, I want to do regression or missing value imputation by knn. I searched r-help mailing list. This question was asked in 2005. ksmooth and loess were recommended. But my case is different. I have many predictors (p>20) and I really want try knn with a given k. ksmooth and loess use band width to define neighborhood size. This contrasts to knn's variable band width via fixing a

Hi Does R have a function or has someone written a function to draw a 3d surface from a scatter plot of values using either ksmooth or locpoly. OR a transform function a that merges x relation z and y relation z to (x,y) relation z? I tried out scatterplot3d but it seems it would take a bit of work to get scatterplot3d to draw a curved surface. Lawrence

Hello, I am getting mad at finding a simple way to replace elements of a df. Here is a short df : > names<-c("BO","C","CL") > price<-c("10","25","20") > df<-data.frame(names,price) I want to replace "BO" by "BOB", "C" by "CR", "CL" by "CLO", and the list is

linux 2.2.19/rh6x I use in a share veto files = /.*/ whenever you connect to it the client process hangs, the smbd starts consuming cpu time and cannot be killed but with "kill -9". This is the last part of the smbd log [2002/05/16 05:49:51, 3] smbd/sec_ctx.c:set_sec_ctx(319) 3 user groups: 100 6 19 [2002/05/16 05:49:51, 3] smbd/trans2.c:call_trans2findfirst(863)

Hi.. I am running R version 2.3.1 on a Windows XP machine with the latest Miktex 2.5 installed. I get no errors from R when running the Sweave example, testfile <- system.file("Sweave", "Sweave-test-1.Rnw", package = "utils") However, when I tex the resulting .tex file (after installing a4.sty) I get the error below. This is pdfeTeX, Version