similar to: Classification error rate increased by bagging - any ideas?

Hi, I think I'm missing something very obvious, but I am missing it, so I would be very grateful for help. I'm using rpart to analyse data on skull base morphology, essentially predicting sex from one or several skull base measurements. The sex of the people whose skulls are being studied is known, and lives as a factor (M,F) in the data. I want to get back predictions of gender, and

Hi, I have a valid SPSS .sav file (which I can open happily in SPSS v11 on Windows XP). Opening it in R2.41 on Linux we get this message :- > HSE3023 <- read.spss("HSE.sav") Error in read.spss("HSE.sav") : error reading system-file header In addition: Warning message: HSE.sav: Variable X234 indicates variable label of invalid length 256 Now variable X234 has indeed a

Hi, This code is trying to produce a series of graphics files, with plots of male and female disease rates by age, one plot per disease. The dataframe contains a variable 'Age' and a set of variables called 'Male_CVD, Female_CVD,Male_RTA,Female_RTA, and so on. For each disease, I want to pull out the column of data containing the word 'Male' and plot this against age, and then

Hi, As part of the analysis of a longitudinal study, I have a list, called wg, on R 1.3.1 for windows created as follows - wg <- by(xx, xx$mrn, function(xx) lm(xx$maternal.wt ~ xx$gestation, data=xx)) xx is a data.frame, and so wg contains the results of 293 linear regressions, as lm objects. Now what I want is to extract the 293 intercepts and regression coefficients as a vector, and

Hi, I would be grateful for help with a problem which is irritating me. I am quite sure that I am doing something stupid, but I can't see what it is. I am running R 1.7 on Windows 2000. The graphics device is the PC screen. The graphics from the nlme demonstration in Bates an Pinheiro's manual work just as advertised. The CO2 data and the Orthodont data dsiplay

Dear colleagues, I have a problem which has bitten me occasionally. I often need to prepare graphs for many variables in a data set, but seldom for all. or for any large number of sequential or sequentially named variables. Often I need several graphs for different subsets of the dataset for a given variable. I run into similar problems with other needs besides graphing. What I would like to

Dear colleagues, I would be very grateful for your help with the following. I have banged my head off this question several times in the past, and repeatedly over the last week. I have looked in the usual places and found no obvious solution. I fear that this just means I didn't recognize it, but I'd be very grateful for your help. I am scoring 8000 psychometric tests - the SCQ, if

Dear colleagues, This may be a question with a really obvious answer, but I can't find it. I have access to a large file with real medical record identifiers (mixed strings of characters and numbers) in it. These represent medical events for many thousands of people. It's important to be able to link events for the same people. It's much more important that the real record numbers

Dear R I'm trying to plot the lda means onto a 2 D plot of discriminant scores. Preferably I'd like these to be in a larger font compared to the discriminant scores. I tried skull.mean.pred <- predict(skulls.lda, as.data.frame(skulls.lda$means), dimen=2) from which I got skull.mean.pred $class [1] 1 2 3 4 5 Levels: 1 2 3 4 5 $posterior 1 2 3 4

Hello to all R users, I use R for a year now and am dealing with geometric morphometrics of deer skulls. Yes, I am a biologist and my math skills are just beginning to brush up. To cut to the chase... I have two groups in my data (males and females) and my data is in a simple vector form. Now I need a bootstrap test for this value szc1 <- ((mean(maleCent)-mean(femaCent))^

Hello there... My name is Marcelo, i am new in this list. I don't know if here is the right place for asking about samba + LDAP, if not, sorry... I am finishing to implement a samba server with ldap support but, when i want to add some group to the samba domain i obtain the following error messages: - SMBLDAP_TOOLS # smbldap-groupadd -a -g 10000 -s S-1-5-21-blablabla -t 2 domainadmins

What does it mean when your mouse hour glass pointer turns into a skull and cross bones symbol for a few seconds and is then followed by your desktop icons being scrambled around to different locations. This reminds me of a bug in the old Windows 98 SE desktop. What would cause this? This has happened to me once before on Fedora 3 (I think, maybe 2). -------------- next part

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Thu, 3 Apr 2014, Emanuele Balla (aka Skull) wrote: > I'm trying to debug (without great results, so far) a very weird > behaviour in my environment. Did you tried with enabled mail_log plugin? - -- Steffen Kaiser -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux)

Dear R-helpers, I have a number of point configurations representing skull shapes, but some of them contain superfluous points. I want to write a loop in which each configuration is plotted and I am asked to write the numbers of points that are superfluous. However, I don't know how to introduce this interactive element. Would you give me an advice? Best regards Ond?ej Mikula -- Ond?ej

woudln't work because all the users are in one group anyway. and i am not allowed to to give read rights do "any" (i.e. 755) but theres really no option in smb.conf like "read only users = " or something like that? Am 13.12.2011 17:56, schrieb Raffael Sahli: > On Tue, 13 Dec 2011 16:38:41 +0100, "skull"<skull17 at gmx.ch> wrote: >> I want to

Hi, I'm using the FLAC command line tool to encode my WAV files in some directory to FLAC files. Now I noticed sometimes the output of the tool is mostly like this: flac -V --best "14 The Hose - Time Warp (Old Skull Mix).wav" flac 1.1.4, Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson flac comes with ABSOLUTELY NO WARRANTY. This is free software, and you are

[Env: R 2.14.2 / Win Xp] In the examples below, I'm using lattice::bwplot to plot boxplots of 4 variables, grouped by a factor 'epoch' which also corresponds to a numeric year. I'd like to modify the plots to position the boxplots according to the numeric value of year, but I can't figure out how to do this. Also, I'd to modify the strip labels that give the variable

Hi all, Somewhat of a newbie's question, hope you can help me out. I'm trying to turn unconditional BranchInst's into conditional ones (with a condition I'm supplying) branching between the original target and a basic block of my choice. Apparently the way to do that is to create a new conditional BranchInst and remove the unconditional one from its basic block. However when

Hi, I would be very grateful for advice on getting confidence intervals for the ordinary (non smoothed) parameter estimates from a gam. Motivation I am studying hospital outcomes in a large data set. The outcomes of interest to me are all binary variables. The one in the example here, Dead30d, is death within 30 days of admission. Sexf is gender (M or F), Age is age in years at the start

I had the chance to test out one of the new Sun X2200 M2 servers for a week or so, aiming to check out the status of HVM support on these machines. The machine was a dual-Opteron dual-core, with 8GB RAM and 1 300GB SATA disk. Normally I tend to use Debian on my servers, but due to lack of needed hardware support on Debian x86_64 images, and because I had very few time to run the tests, I used an