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Hello, I am trying to look at projection pursuit classification: I was wondering what function/package is recommended for use. I note that the stats function ppr only takes in numeric responses. Any suggestions? Many thanks, Ranjan

Dear list, Does anyone have a suggestion (or better still) code for sampling from the uniform distribution over the convex hull of a set of points? Many thanks and best wishes, Ranjan

Dear all, Is there an R package which calculates the modified Struve function (StruveL)? I was not able to find anything apt with a RSiteSearch so it does not appear to have been asked in the list. Many thanks and...

Hi, Is there code for drawing the R logo? https://www.r-project.org/logo/ has the logo in svg and png formats, and also the terms of the license, but I can not find code to draw this. Many...

Dear friends, I am trying to display a sequence of characters x_1, x_2, ... x_30 on a plot. I know that I can use expression to do this by expression("x"[1]), etc. But, how do I do...

Hi, I have a vector of p*(p+1)/2 elements, essentially the lower triangle of a symmetric matrix. I was wondering if there is an easy way to make it fill a symmetric matrix. I have to do it...

Hi, I am trying to convert some Matlab code into R for running some experiments and I was wondering if there is some function in R which does the work of the gradient function in Matlab calculating the "gradient" of...

I have come across this file (warning, massive, 4.3 GB) https://esahubble.org/media/archives/images/original/heic1502a.psb and it appears to be a filetype I was not aware of previously. Is it possible to read the file...

Doesn't quantile() do what you want? HTH, Ranjan > hi all: > > ecdf() is the empirical cumulative distribution function, but I need the > INVERSE cumulative distribution. > > how can I calculate it? > > thank you in advance > > /salva > > ______________________________________________ > R-help at stat.math...

On Wed, 28 Feb 2007 17:06:18 +0100 Emili Tortosa-Ausina <Emili.Tortosa at eco.uji.es> wrote: > y<-c(1960, 1965, 1970, 1975) > z<-c(1, 2, 3, 4) > plot(y, z, type="l", col = 2) > legend(x...

Btw, I did hear back immediately from Ian Fellows and it is being maintained as his time permits, though he himself is not a windows user, and possibly therefore the issues. I thanked him for his e-mail and was...

Dear list, I would like to do a huge number of lme's using the same design matrix (and fixed and random effects). Is it possible to do this efficiently? Doing otherwise is not an option for my example. Basically...

According to the help for pairs, the diag.panel function is supposed to take a panel.hist as in: pairs(USJudgeRatings[1:5], panel = panel.smooth, cex = 1.5, pch = 24, bg = "light blue", horOdd=TRUE, diag.panel = panel.hist...

Dear friends, Is there a way to read data files written in lisp into R? Here is the file: https://archive.ics.uci.edu/ml/machine-learning-databases/university/university.data I would like to read it into R. Any...

Dear colleagues, I am trying to get someone to use R on MS Windows with the browser disabled. My question is how does he/she get to use R-help which goes off the browser (and correspondingly complains about the...

On Sun, 01 Apr 2007 09:04:01 +0300 kone <attenka at utu.fi> wrote: > Hello everybody, > > I'm interesting in evolutionary algorithms. I have tested genetic > algorithms with R but has someone tried with genetic programming? Do > you know...

Sorry but what is modified Ward's method? I am guessing this has to do with hierarchical clustering. Ranjan On Fri, 14 Sep 2012 16:09:00 +0000 eliza botto <eliza_botto at hotmail.com> wrote: > > Dear R users, > is...

> > > > Yes, that is what I thought so too earlier (and indeed is still true, sorry about that). The whole issue started at my end because I misremembered about plotmath which is neither a function nor a package. > > > >> Perhaps install.packages...

Can anyone please help me out? I would like to do CART (classification and regression trees) in R. Is this at all possible? If so, how? Thanks, Ranjan -- *************************************************************************** Ranjan Maitra, Department of Mathematics and Statistics, University of Maryland, Baltimore County...

Dear list, I was wondering if it is possible to get the p-values for one-sided tests on the parameters of a linear regression. For instance, I use lm() and store the result in an object. lm() gives me...