similar to: calculation of inertial difference with huygens theorem in ward clustering ?

Hi R people, i'm looking for the Reciprocal Nearest Neighbour algorithm applied to Ward clustering; I know that it is explained in details in the following book: Downs, G. M.; Willett, P. In Advanced Computer-Assisted Techniques in Drug Discovery; van de Waterbeemd, H., Ed.; VCH: Weinheim, 1994; Vol. 3. but cannot order copies it without knowing the pages involved; could someone

Hello to the R community, which dataset(s) available in R is suitable to test the quality of a classification tool ? Thansk in advance, -- Nicolas Baurin Doctorant Institut de Chimie Organique et Analytique, UPRES-A 6005 http://www.univ-orleans.fr/SCIENCES/ICOA/ Universit? d'Orl?ans, BP 6759 45067 ORLEANS Cedex 2, France Tel: (33+) 2 38 49 45 77

Hello, i'm looking for the procedure to generate a random number between 0-1. Try rnorm() but can't get to do generate between 0-1 thanks(i'm sur it's easy) -- Nicolas Baurin Doctorant Institut de Chimie Organique et Analytique, UPRES-A 6005 Universit? d'Orl?ans, BP 6759 45067 ORLEANS Cedex 2, France Tel: (33+) 2 38 49 45 77

Hello to all R people, for the application of a function to each column of a matrix (ex: function sum()), i'd like to know if there is a simpler (and faster) alternative to a loop like : for (i in 1: ncol(m)){sum(m[i])} Thanks in advance, Cordialement, -- Nicolas Baurin Doctorant Institut de Chimie Organique et Analytique, UPRES-A 6005 Universit? d'Orl?ans, BP 6759 45067 ORLEANS Cedex

Hello to all of you, What i try to do : i got data of the type (x,y) which i plot with plot (x,y). i want to actualise that plot adding new points (x,y) (i did it with points(x,y)): how can i adjust the scale of the axis x and y to see all the points in the window. Ex: i start with plot (1,0.5). If i do points(0.8,0.5) no problem, all my points are visible on the graph. But if i do points(2,2),

Hello R people, i'm trying to implement the Partial Least Squares algorithm called SAMPLS from "J.Comp-Aided Molecular Design", 7 (1993), 587-619. It's faster than the classical PLS algorithm for fat matrix (m>>n). Here's the algorithm from the article of Bush B. L. and Nachbar R.B.: X is the matrix of explanatories proprieties (m*n) , y the matrix of responses, h

We have an app (Online Bible) that works under WINE except you have to disable inertial/momentum scrolling on the Mac; otherwise when you scroll in the app's window, scrolling never stops until it reaches the end of all text in the window. Surely others have run into this behavior? Is there a way to disable inertial scrolling within the WINE app window, without having to disable it

Hello all, Currently we are looking at the possibility of moving from Courier-IMAP to Dovecot (the one that comes with Debian Lenny: version 1.0.15). I'm currently testing it on a non-production server and have a few questions: 1) Currently all our clients use Thunderbird as their mail client to read mail from our IMAP server. Thunderbird is configured with "INBOX." as the

I have been having some problems setting up tinc on 2 masquerading linux slackware boxes. routerA is a NAT router to the internet, for two networks on two interfaces. This are the two networks: eth1 Link encap:Ethernet HWaddr 00:E0:4C:6C:6D:86 inet addr:192.168.0.1 Bcast:192.168.0.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX

Dear R community, I am trying to understand how the ward linkage works from a quantitative point of view. To test it I have devised a simple 3-members set: G = c(0,2,10) The distances between all couples are: d(0,2) = 2 d(0,10) = 10 d(2,10) = 8 The smallest distance corresponds to merging 0 and 2. The corresponding ESS are: ESS(0,2) = 2*var(c(0,2)) = 4 ESS(0,10)

I have a training set of data for known classes with 5 observations of 12 variables for each class. I want to use this information to classify new data into classes which are known to be different to those in the training set but each new class may contain one or more observations. The distribution of within class distances is expected to be similar for all classes and this is found to be the

"Andrew C. Ward" <acward at uqconnect.net.au> : >With respect to 'tone' and 'friendliness', perhaps all that >is meant or needed is that people be polite and respectful. >I shake my head as often at rude answers Oh, by gosh, by golly. I don't think an occasional dose of 'real life', via a jab from the Professor, will cause any lasting harm

In complex analysis, Cauchy's integral theorem states (loosely speaking) that the path integral of any entire differentiable function, around any closed curve, is zero. I would like to see this numerically, using R (and indeed I would like to use the residue theorem as well). Has anyone coded up path integration? -- Robin Hankin Uncertainty Analyst Southampton Oceanography Centre

I want to understand ANOVA better. But a few textbook that I have do not describe Cochran's Theorem in details. Could somebody recommend a book for me?

Dear useRs,Is there a command or package in R to do heirarchical clustering by "modified ward method"??regardseliza [[alternative HTML version deleted]]

Hello guys, I am stuck here: How do I make 1000 samples of n = 10 observations from an Exponential distribution and then compute the mean for all those 1000 samples? Basically I need to prove the Central Limit theorem, which states: http://www.nabble.com/file/p22664113/d175f06cbf200bd52a2c27a2e56dc594.png Where the Sn is sum of random variables, n we have from the question, mu is mean and

Hi, Is there a way to simulate a population with R and pull out m samples, each with n values for calculating m means? I need that kind of data to plot a graphic, demonstrating the central limit theorem and I don't know how to begin. So, perhaps someone can give me some tips and hints how to start and which functions to use. thanks for any help, joerg

my data looks like this: PM10 Ref UZ JZ WT RH FT WR 1 10.973195 4.338874 nein Winter Dienstag ja nein West 2 6.381684 2.250446 nein Sommer Sonntag nein ja Süd 3 62.586512 66.304869 ja Sommer Sonntag nein nein Ost 4 5.590101 8.526152 ja Sommer Donnerstag nein nein Nord 5 30.925054 16.073091 nein Winter Sonntag nein nein Ost 6

Hi R users I try to use the lme but I can?t!!!!! My script is (some words in french, sorry!!): rm(list=ls(all=TRUE)) #Efface tous les objets en m?moire pour ?viter des erreurs library(MASS) #Chargement des Librairies library(car) library(Hmisc) library(tkWidgets) library(svDialogs) library(multtest) library(nlme) #Rep <- "C:/Documents and Settings/U3M/Bureau/steph/Scripts

Good people, I'm new to samba and more experienced with the unix world than the windows world. I have set up a small system consisting of a samba server running Samba 2.2.3 and FreeBSD 4.4, two win2k systems and a win98 notebook. Networking hardware consists of 3com in the FreeBSD system, whatever 10BaseT stuff is in the motherboards of the windows systems, and 10BaseT twisted pair and hub.