similar to: first post and bootstarpping problems

My objective is to look at differences in two species of fish from morphometric measurements. My morphometric measurements are head length, eye diameter, snout length, and measurements from tail to each fin. I want to use discrimanant function analyis to determine if there are differences between the two species. I am familiar with R but new to discrimannt function analysis. I want to learn

Hi all, i purchased a copy of the book Morphometrics with R by Springer. at the end of each chapter there are exercises to train what you just read and (hope) learned... so i have this problem: Define a hypothetical data frame containing five measurments normally distributed(size,head,pectoral,area,weight) for four individuals (named ind1, ind2, etc). ADD A COLUMN corresponding to the

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I''m using xen to run real linux system. I''ve configured partition for my system. When I''m installing Debian Etch everything is fine but when I''m starting installed system I get a hang. My xen disk conf is: disk = [ ''phy:/dev/root/node1,ioemu:hda,w'' ] device_model =

Hello, I've got a small dataset on box turtle shell measurements that I would like to perform a detrended correspondence analysis on. I thought that it would be interesting to examine the morphometrics for each species in the area of overlap and in areas where neither species occurs.  I've taken a look at the dune and dune.env datasets in vegan. Using the str() command gives me  >

Dear list i am using Asterisk 1.2.5 with A@H . here is my problem. if i dial a number (consider 79) i have to wait around 20 seconds before my Asteisk box response. now i want to decrease this waiting time . any idea how to do that ? thanks Salaque

(clean install) >gem install rails Attempting local installation of ''rails'' Local gem file not found: rails*.gem Attempting remote installation of ''rails'' Install required dependency activesupport? [Yn] y Install required dependency activerecord? [Yn] y Install required dependency actionpack? [Yn] y Install required dependency actionmailer? [Yn] y

Hi, my name is Gastón. I just read a question, made by Walter Durka, about a nonparametric discriminant analysis. It wasn´t any answer, and I was wondering if at this moment there is one. I have the same problem as W. Durka. I´m trying to classify and to cross-validate samples of three tunicates species based on morphometric data and to identify the variables that best discriminate between

Hi, I'm very new to R. I want to know if there is any way to write only the lower half of a distance matrix created in R to a csv file for example. I get the 'cannot coerce class "dist" into a data.frame' message when I try. I have used as.matrix and can write to a file this way, but as a full matrix. The reason I only want the lower half is that I've been doing some

CRAN (and crantastic) updates this week New packages ------------ * disclapmix (0.1) Maintainer: Mikkel Meyer Andersen Author(s): Mikkel Meyer Andersen and Poul Svante Eriksen License: GPL-2 http://crantastic.org/packages/disclapmix disclapmix makes inference in a mixture of Discrete Laplace distributions using the EM algorithm. * EstSimPDMP (1.1) Maintainer: Unknown Author(s):

Hello. I have been browsing the R- manual and not seen any direct implementation of Factor analysis. Is there anyone out there who has run Factor Analysis with R? Thanks Michael -- Michael Preminger Forsker / Research Scientist Avdeling for journalistikk, bibliotek- og informasjonsfag / Faculty of Journalism, Library and Information Science H?gskolen i Oslo / Oslo College

dear group members, I am looking for a function that assess the stability of cluster. The result of hclust function is an hclust object which can be plot as a dendrogram. However to have confidence in the tree topology usualy bootstap is applied. I understand that I can apply bootstarp on the original data and then run hclust(dist() ) as much as I resampled but how to comapre the topologies the I

I use Ubuntu12.04, GNU Make 3.81 and I am not sure if I use some special configure options. The commands I use after clone the repo are as follows: cd xapian ./bootstarp ./configure make cd xapian-letor aclocal -I ../xapian-core/m4 libtoolize --force autoconf autoheader automake --add-missing ./configure make Is this normal? 2014-12-07 22:37 GMT+08:00 James Aylett <james-xapian at

Hello, I want to bootstarp a sample, and I need table() for each sample taken, like if R=100, I need all 100 table(). It seems to mee that boot() works anly if you assing statistics, that gives you back one number, like mean. Although the ?boot/statistics says that it can be a vector containing statistics. table() gives an array, so it might work. Does anybody have an idea how? I konw it can be

Dear all, I've a problem with bootstarp package... I want to bootstrap correlation ratio of some data. my code is: f<-function(d) cov(d$x,d$y)/sqrt(var(x)*var(y)) boot(d,f,R) As a result I got an error: Error in statistic(data, original, ...) : unused argument(s) (.. .) d is a data.frame containing two vectors with labels x and y. Also, another thing I have problem

I am a relative novice with R and am having some difficulty using 'clusplot' (package Cluster). I have performed PCA analysis (using vegan) on a large set of morphometric measurements and revealed up to 4 principal components. To examine the grouping of the data I have used PAM followed by clusplot to visualise the clusters. My problem is that I would like to see the clusters plotted on

Dear R-users, I've spent most of the day reading R documentation at length but couldn't find something perhaps obvious. I have a dataset made of 3 morphometric variables for a series of watershed [log(slope); log(drainage_area); distance_to_outlet] My aim is to predict the value of log(slope) for pairs of [drainage_area; distance_to_outlet] (sounds like a plain linear model fitting,

Hi I am on Debian verson 7.7, GCC 4.7.2 and make 3.8.1. I cloned the code : git clone https://github.com/v-hasu/xapian git checkout gsoc2014-evaluation rm xapian-letor/nobootstrap ./bootstrap ./configure --no-documentation make CXXFLAGS='-w' and I get a different set of errors --- ranker.cc: In member function 'std::string Xapian::Ranker::get_cwd()': ranker.cc:80:36: error:

Hi~ Manu I was glad to see you were interested in Xapian, especially the learning to rank project. There are two branch in my repo. The one named gsoc2014 is followed the thought of Parth's work in which we not assign the test set for each ranking and in another one gsoc2014-evaluation we assign the training set and test set explicitly so that we can get the evaluation score of each ranking

Hello, I am doing a simple linear regression analysis that includes few variables. I am using a bootstrap analysis to obtain the variation of my variables to replacement. I am trying to obtain the coefficients 95% confidence interval from the bootstrap procedure. Here is my script for the bootstrap: N = length (data_Pb[,1]) B = 10000 stor.r2 = rep(0,B) stor.r2 = rep(0,B) stor.inter =

All -- I''ve got a bunch of different user types, all of whom have an Account. Account holds first and last name, and a few other values; values for the the other types vary considerably. The problem I''m facing is that I want to order results by last, first for all the user types, and I don''t see any way to do that except for diving into SQL. I don''t want to