similar to: md5 hash is wrong for 2.6.2 (Windows)

Suppose you have a vector of data in x and response values in y. How do you plot together both the points (x,y) and the curve that results from the fitted model, if the model is not y ~ x, but a higher order polynomial, e.g. y~poly(x,2)? (In other words, abline doesn't work for this case.) Thanks, --Paul -- Paul Lynch Aquilent, Inc. National Library of Medicine (Contractor)

Is there a download page for mongrel_cluster? I see that "gem install mongrel_cluster" works, but I can''t see where it''s coming from. Usually gems have some sort of project page somewhere. -- Paul Lynch Aquilent, Inc. National Library of Medicine (Contractor)

Hi, I'm trying to do a linear regression style one-way ANOVA using some data in a data frame, and (perhaps because I am still relatively unfamiliar with both R and statistics) what I thought I should do was to make the data frame into a factor. By that I mean that I have a data frame whose column labels are the levels of the factor, and the values in the frame are numeric values for the

This morning I tried to see if I could find the r-help mailing list on Google Groups, which has an interface that I like. I found three Google Groups ("The R Project for Statistical Computing", "rproject", and "rhelp") but none of them are connected to the r-help list. Is there perhaps some reason why it wouldn't be a good thing for there to be a connected

Suppose you have 4 related vectors: a.id<-c(1:25, 1:25, 1:25) a.vals <- c(101:175) # same length as a.id (the values for those IDs) a.id.levels <- c(1:25) a.id.ratings <- rep(letters[1:5], times=5) # same length as a.id.levels What I would like to do is specify a rating from a.ratings (e.g. "e"), get the vector of corresponding IDs from a.id.levels (via

I've made some normal plots of my data using qqplot, and now I would like to fit a line to the points on the plot and check the correlation coefficient to have a more objective measure of how straight the line is. Is there a simple way of doing that? (I'm still pretty new to R.) Thanks, --Paul -- Paul Lynch Aquilent, Inc. National Library of Medicine (Contractor)

Hi, everybody, 3 questions about R-square: ---------(1)----------- Does R2 always increase as variables are added? ---------(2)----------- Does R2 always greater than 1? ---------(3)----------- How is R2 in summary(lm(y~x-1))$r.squared calculated? It is different from (r.square=sum((y.hat-mean (y))^2)/sum((y-mean(y))^2)) I will illustrate these problems by the following codes:

Hello! I am trying to read Ferret index files from Windows machine on my Mac G5 Leopard machine, but the following returns nil: Ferret::Index::IndexReader.new( index_paths ) Should this work? Are index files guaranteed to be platform independent or not? Is there any problem if files (top direectory) are renamed? izidor P.S. I can create the index myself and then everything works.

is it on a per subframe basis, and if so, is each frame padded if it’s not a multiple of 512 bits? or do I have to decode all the data, and run it over the decoded file at once?

Is there an option for filtering stop words out of the query string, so that queries that contain stop words don''t return zero results? It has been several years, but I think that when I was on a project that was writing a search engine, we used to filter stop words both out of the index and out of the query string, after it was parsed. This allows a query like [cold and sinus] to

I've been searching around for a function for computing the Brown-Forsythe F* statistic which is a substitute for the normal ANOVA F statistic for when there are unequal variances, and when there is evidence of non-normality. A couple of other people have asked this question, the responses I found have been: ?oneway.test However, that function appears to use the Welch W statistic which,

summary: updating R .deb's from recommended mirrors @ http://cran.r-project.org/mirrors.html has allowed me to keep my R version up-to-date for many months. But since Friday (25 Jan) I get errors like Failed to fetch <mirror URI/>/squeeze-cran/<deb name/>: Hash Sum mismatch but can install .deb's from non-CRAN sources. No fix from sudo rm /var/cache/apt/pkgcache.bin sudo

Hi all! I've got a question about rsync using the MD5 algorithm. I know that rsync makes blocks of a file and then compares the checksums of each block. If the checksum is unequal the block is tranfered. Otherwise it could be that the checksum is the same but the block is different. Therefor rsync uses a 128 BIT MD5 algorithm. Now, at what filesize is it better to check the whole file

Each morning when I return to work, I find that my WEBrick server has stopped working. The process is still running, but when I try to connect to it with a web browser, the browser doesn''t get any response back. Usually when this happens I cannot control-c the process to shut it down, and not even "kill" works-- I have to get rid of it with kill -9. I then restart it and it

I'm looking for a book for someone completely ignorant of statistics who wishes to learn both statistics and R. I've found three possibilities, one by Verzani ("Using R for Introductory Statistics"), one by Crawley ("Statistics: An Introduction using R"), and one by Dalgaard ("Introductory Statistics with R"). Do these books have different emphases,

Hi All I am using rsync to do a local network copy of 10 ~8gig files. The source is a NAS Atom rsync server, and the destination is a cygdrive, obviously on the same computer that is running rsync client. I am using --inplace, and ingeneral, the 8gig files generally have data changed within the file, but the general structure of the file is not changed. They are Firebird databases. (The total

Hi all, Is there an easy way to do cumulative matrix multipliation in R? What's the syntex? Thanks. Sincerely, Yanwei Zhang Department of Actuarial Research and Modeling Munich Re America Tel: 609-275-2176 Email: yzhang@munichreamerica.com<mailto:yzhang@munichreamerica.com> [[alternative HTML version deleted]]

Hi Does anybody have the md5 has value of /usr/bin/netstat of a FreeBSD 4.4 RELEASE #0 which whas securely boxed? Thank you Arie

Hello everybody. I'm experimenting this problem with samba 3.0.2a and linux 2.4.25 with ReiserFS. When I copy (put) a large file (5GB) from a Windows NT terminal server sp6a to the samba-linux box, the md5sum is different between the two file. Files size are identical. I'm using this command to copy these files from windows to samba: xcopy f:\ \\mimas\backup\exchange /e /c /h /r I have

Thank you Duncan, Peter and Martin for the responses. Just to mention that the code is based on tools::md5sum, and the issue can be reproduced (in Windows) using: if(!require(installr)) install.packages("installr") installr::checkMD5sums2(dir=R.home()) With regards, Tal [[alternative HTML version deleted]]