similar to: Random Forest Classification

A machine diff between one using ASCII and UTF-8 would yield not equal? Is it reasonable to only use UTF-8 ("pretty" chars) with a command line switch (forced) rather than as an override (implied) behaviour?

requesting assistance on "MSTSC has caused an error in GDI.EXE. MSTSC will now close." this message has been given after reinstalling windows many times. Terminal server is what we run) what do I don't know thanks

Hi, To evaluate the partial influence of a factor with a random Forest, wich response is OK/NOK I?m using partialPlot, being the x axis the factor axis and the Y axis is between -1 and 1. What this -1 and 1 means? An example: https://www.dropbox.com/s/4b92lqxi3592r0d/Captura.JPG?dl=0 Thanks for all!!! [[alternative HTML version deleted]]

I have data set up like the following: control1 <- sample(1:75, 3947398, replace=TRUE) control2 <- sample(1:75, 28793, replace=TRUE) control3 <- sample(1:100, 392733, replace=TRUE) control4 <- sample(1:75, 858383, replace=TRUE) patient1 <- sample(1:100, 28048, replace=TRUE) patient2 <- sample(1:50, 80400, replace=TRUE) patient3 <- sample(1:100, 48239, replace=TRUE) control

Hello R-devel: I have written a package, called "woods", that does classification trees (R function CT), and currently, only the most basic functionality of Random Forest, e.g. bagged trees with choices about sample size, with/without replacement, size of (random) subset of covariates drawn when nodes are split. My reason for writing this is twofold. First, I wanted to base this

> From: Hin-Tak Leung > > Izmirlian, Grant (NIH/NCI) wrote: > <snipped> > > The only interesting feature is that the tree structure has been > > implemented in C. Its a neater way to carry stuff around and I am > > guessing would make future implementation easier. > > > > Because of its inherent redundancy from the users standpoint, it > >

Hello everybody! For my academic project work I intend to use only open-source software. My objective is to carry out classification of satellite digital images using Geostatistics. I found out GRASS is a good software for image processing. Also a good geostatistics software is R. It is also known that R can be used in combination with GRASS. But I am not able to confirm that satellite digital

Dear R users, We are happy to announce that the R package 'forestinventory: Design-Based Global and Small-Area Estimations for Multiphase Forest Inventories' is now on CRAN (https://cran.r-project.org/web/packages/forestinventory/). The aim of our package is to provide global- and smallarea estimators for twophase and threephase forest inventories under simple and cluster sampling. The

Dear R users, We are happy to announce that the R package 'forestinventory: Design-Based Global and Small-Area Estimations for Multiphase Forest Inventories' is now on CRAN (https://cran.r-project.org/web/packages/forestinventory/). The aim of our package is to provide global- and smallarea estimators for twophase and threephase forest inventories under simple and cluster sampling. The

Hi, I have a 1.000 observations with 10 attributes (of different types: numeric, dicotomic, categorical ecc..) and a measure M. I need to cluster these observations in order to assign a new observation (with the same 10 attributes but not the measure) to a cluster. I want to calculate for the new observation a measure as the average of the meausures M of the observations in the cluster

Hi, I have done an analysis using 'rpart' to construct a Classification Tree. I am wanting to retain the output in tree form so that it is easily interpretable. However, I am wanting to compare the 'accuracy' of the tree to a Random Forest to estimate how much predictive ability is lost by using one simple tree. My understanding is that the error automatically displayed by the two

I was hoping I could get some help with an import question. I work with remote sensing imagery which commonly comes in binary form in various interleaving formats (byte interleaved by line, by pixel, etc..). These files are 2d spatial x B bands in size, and I want to be able to extract the band values from various pixels (so each line of data into R would be one pixel x B bands). What's the

hello, i am so glad to write you. i am dealing now with writing my M.Sc in Applied Statistics thesis, titled " Data Mining Classifiers and Predictive Models Validation and Evaluation". I am planning to compare several DM classifiers like "NN, kNN, SVM, Dtree, and Naïve Bayes" according to their Predicting accuracy, interpretability, scalability, and time consuming etc. I have

Can somebody save-me? Thanks in advance! #R script: #trying to find out how solve a discrete Bayesian Belief Network. #option: using 'catnet' package #BEGIN library(catnet) cnet <- cnNew(nodes = c("a", "b", "c"), cats = list(c("1", "2"), c("1", "2"), c("1", "2")), parents = list(NULL, c(1), c(1,

Hello, Is it possible to use R functions (in my case: ks.test()) from C++ -applications? That is, I get the impression R can execute C/C++ code, but is there any possibility to do the opposite? Where can I find help? ------------------------------------------- Ph. D. J??rgen Wallerman Swedish University of Agricultural Sciences Remote Sensing Laboratory S901 83 UME??

R-developers: I'm working on updating my R package "spatial.tools", and one thing I was wondering was the proper way to have hidden functions -- should I simply not export them to the namespace and use the ::: operator to call them (which is what I currently do)? --j -- Jonathan A. Greenberg, PhD Assistant Professor Global Environmental Analysis and Remote Sensing (GEARS)

R-helpers: Are there any ways to auto-generate R-friendly (e.g. will pass a compilation check) .Rd files given a set of .R code? How about GUIs that help properly format the .Rd files? Thanks! I want a basic set of .Rd files that I can update as I go, but as with most things my documentation typically lags behind my coding by a few days. --j -- Jonathan A. Greenberg, PhD Assistant Project

I'm trying to redirect where temporary files go under R to D:\temp\somerandomname from its default (C:\Documents and Settings\username\Temp\somerandomname) -- how do I go about doing this? --j -- Jonathan A. Greenberg, PhD Postdoctoral Scholar Center for Spatial Technologies and Remote Sensing (CSTARS) University of California, Davis One Shields Avenue The Barn, Room 250N Davis, CA 95616

Hello, I am trying to conduct a time series analysis on historic hydrologic data, but I cannot coerce it into class ts because it does not have regular sampling intervals (some years have 20 samples, other have 8). Specifically I am trying to perform a CUSUM or or other step change detection, but the packages all seem to require data as ts. Is there a way to coerce my data into ts while

Quick question -- if I have a vector of strings that I'd like to split into two new vectors based on a substring that is inside of each string, what is the most efficient way to do this? The substring that I want to split on is multiple characters, if that matters, and it is contained in every element of the character vector. --j -- Jonathan A. Greenberg, PhD Postdoctoral Scholar