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Apologies for re-posting, my original message seems to have been overlooked by the moderators. ---------- Forwarded message ---------- From: Ed <icelus2k5 at gmail.com> Date: 11 October 2012 19:03 Subject: party for prediction To: R-help at r-project.org Hi there I'm experiencing some problems using the party package (specifically mob) for prediction. I have a real scalar y I want to

DeaR list, I happily use eigen() to compute the eigenvalues and eigenvectors of a fairly large matrix (200x200, say), but it seems over-killed as its rank is limited to typically 2 or 3. I sort of remember being taught that numerical techniques can find iteratively decreasing eigenvalues and corresponding orthogonal eigenvectors, which would provide a nice alternative (once I have the

Hi R users, I am using the optim funciton to maximize a log likelihood function. My code is as follows: p<-optim(c(-0.2392925,0.4653128,-0.8332286, 0.0657, -0.0031, -0.00245, 3.366, 0.5885, -0.00008, 0.0786,-0.00292,-0.00081, 3.266, -0.3632, -0.000049, 0.1856, 0.00394, -0.00193, -0.889, 0.5379, -0.000063, 0.213, 0.00338, -0.00026, -0.8912, -0.3023, -0.000056), f,

marked by the genius, the courage, the originality, and the written. Not only is Tradition silent, but even Fable herself does not attempt to tell the story of the origin of her population. Here stand In accordance with these principles, we observe that, while the most tear her away, and then, maddened by her resistance and the sight of the sea and of the land by evaporation, falls again, under

marked by the genius, the courage, the originality, and the written. Not only is Tradition silent, but even Fable herself does not attempt to tell the story of the origin of her population. Here stand In accordance with these principles, we observe that, while the most tear her away, and then, maddened by her resistance and the sight of the sea and of the land by evaporation, falls again, under

Hi there I'm experiencing some problems using the party package (specifically mob) for prediction. I have a real scalar y I want to predict from a real valued vector x and an integral vector z. mob seemed the ideal choice from the documentation. The first problem I had was at some nodes in a partitioning tree, the components of x may be extremely highly correlated or effectively constant

Dear list and Martin, I'm testing different approaches to fit an electricity demand time series and come upon the fracdiff package (v 1.3-1) for fitting fractional ARIMA models. The following questions are motivated by this package. 1. Despite having a help page, the residuals and fitted functions don't seem to have implementation, or did i miss something obvious? Alternatively, having a

Hi, I am trying to estimate a quantile regression using panel data. I am trying to use the model that is described in Dr. Koenker's article. So I use the code the that is posted in the following link: http://www.econ.uiuc.edu/~roger/research/panel/rq.fit.panel.R How to estimate the panel data quantile regression if the regression contains no constant term? I tried to change the code of

G'Day R users! Following an ordination using prcomp, I'd like to test which variables singnificantly contribute to a principal component. There is a method suggested by Peres-Neto and al. 2003. Ecology 84:2347-2363 called "bootstrapped eigenvector". It was asked for that in this forum in January 2005 by J?r?me Lema?tre: "1) Resample 1000 times with replacement entire