similar to: Can one write a procedure in R like for instance in Maple ?

Hi R-users, Can Maple function be exported to R? I have a jacobian matrix (4X4)?from maple in algebraic form which involve modified Bessel function of the first kind. I just wonder whether we can use algebraic form into R before the value of the parameters can be estimated. Thank you so much for your attention and help.

Hello list I have installed Maple 6 with no problems. It even put a shortcut on my Kubuntu Dapper Desktop but when I run Maple, I could see the splash screen then everything disappears. I don't know if this means that Maple 6 crashes. Any idea of troubleshooting? -- OOzy Kubuntu-Dapper

I wonder if there is a utility that enables Maple files to be imported into R? Many thanks. Andrew Philpott [[alternative HTML version deleted]]

I am trying to install my copy of maple 8 for windows, using wine in mandriva 2008.1. Apparently there is a difficulty with handling the java code for the installantion front-end. Below I report the log file showing the error. One curious thing is that I get very close to make wine run the maple 8 version I have already installed in a windows XP partition. The maple window correctly pops up, but

Hi. I was having trouble getting Greek letters and mathematical symbols in maple under wine, and a search turned up a few messages suggesting others have the same problem. In particular, Thomas Koenig wrote... http://www.winehq.com/hypermail/wine-users/2001/04/0028.html > I wrote: > > >I have tried several applications which use Greek letters, such as > >Maple V R5 and

Hi, I''m running Rails on Mac OS X 10.4. I''ve installed ruby/gem from darwinports, and then rails through gem. I have a recurring problem where I get an SQL syntax error: Mysql::Error: #42000You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '''' at line 1: INSERT INTO

I am looking at histogram breaks, and notice something odd: > foo <- hist(runif(10000),breaks=20) > length(foo$breaks) [1] 21 This makes sense to me. > foo <- hist(runif(10000),breaks=200) > length(foo$breaks) [1] 201 This also makes sense. BUT > foo <- hist(runif(10000),breaks=250) > length(foo$breaks) [1] 201 > foo <- hist(runif(100000),breaks=250) >

Dear list, is there a way to open a .zip folder so that one can extract and modify files inside and then save teh .zip folder again? thanks! Jose -- Dr. Jose I. de las Heras Email: J.delasHeras at ed.ac.uk The Wellcome Trust Centre for Cell Biology Phone: +44 (0)131 6507095 Institute for Cell & Molecular Biology Fax: +44 (0)131 6507360 Swann Building,

Hello, My R skills are somewhere between novice and intermediary, and I am hoping that some of you very helpful forum members, whom I've seen work your magic on other peoples' problems/questions, can help me here. I have a matrix with the following format: (i) individual plants comprising many different genotype groups (i.e., a plant is genotype 1 or genotype 2 or genotype 3, etc). The

Download page(http://rubyonrails.org/download) tells as follows "We recommend Ruby 1.8.7 for use with Rails." Which version of RoR is stable(or available) on ruby-1.8.7? I want to use rails-2.1.2. but I dont know that is appropriate. # Im going to run redMine 0.8.0 on Ubuntu 8.10. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed

Hi All, I am trying to use A Gaussian quadrature over the interval (-infty,infty) with weighting function W(x)=exp(-(x-mu)^2/sigma) to estimate an integral. Is there a way to do it in R? Is there a function already implemented which uses such weighting function. I have been searching in the statmode package and I found the function "gauss.quad(100, kind="hermite")" which uses

Hi guys, I have a list of 250 numbers as a result of using the ?by function! List of 246  $ 0   : num [1:28] 22 11 31...  $ 1   : num [1:15] 12 14 9 ... .. .. ..  - attr(*, "dim")= int 250  - attr(*, "dimnames")=List of 1 The problem is that each list of 250 has different length! I would like to get the values of each list in a vector like vector_0 = (22,11,31,..), is this

Hello to all, I am having trouble with intregrating a complicated uni-dimensional function of the following form Phi(x-a_1)*Phi(x-a_2)*...*Phi(x-a_{n-1})*phi(x-a_n). Here n is about 5000, Phi is the cumulative distribution function of standard normal, phi is the density function of standard normal, and x ranges over (-infty,infty). My idea is to to use quadrature to handle this integral. But

I have a function written for Splus, when I run it in R I obtain get an error because the function has the elements "0.d0" and "2.d0". How can I change it to run in R? The function can be found in page 230 from http://www.stat.wisc.edu/~mchung/teaching/stat471/stat_computing.pdf Function is as follows: gauher <- function(n) {# Gauss-Hermite: returns x,w so that

We are currently seeking a Statistical Analyst to work for a large Pharmaceutical company in the US. This position is a Work From Home opportunity. If you meet the requirements below please send your resume to Christina.Kinchen at InventivHealth.com or call 407-548-0670. REQUIRED: * The ideal candidate will have strong R programming skills and 6 months, or more, work

Full_Name: Christina Merz Version: R version 2.5.0 (2007-04-23) OS: mingw32 Submission from: (NULL) (213.70.209.132) R> version _ platform i386-pc-mingw32 arch i386 os mingw32 system i386, mingw32 status

We are currently seeking a Lead Statistician to work for a large Pharmaceutical company in the US. This position is a Work From Home opportunity. If you meet the requirements below please send your resume to Christina.Kinchen at InventivHealth.com or call 407-548-0670. A brief description is as follows: Title of Position: Telecommuting LEAD STATISTICIAN REQUIRED: . The ideal candidate will have

Hi, dear R users I am a newbie in R and I wantto use the method of meximum likelihood to fit a Weibull distribution to my survival data. I use "optim" as follows: optim(c(1, 0.25),weibull.like,mydata=mydata,method="L-BFGS-B",hessian = TRUE) My question is: how do I setup the constraints so that the two parametrs of Weibull to be pisotive? Or should I use other function

Hi everyone I'm using Tukey HSD as post-hoc test following a lme analysis. I'm measuring hemicelluloses in different species treated with three different CO2 concentrations (l=low, m=medium, h=high). The whole experiment is a split-plot design and the Tukey-function from the package multcomp is suitable for lme-analysis with random factors. The analysis works fine but I get a non

I'm trying to export a large data frame to a text file for permanent storage. The only thing I could find was the treeglia Package but that didn't work. Any suggestions? Thanks! Christina D Smith PhD Student, GRA Statistics Department Kansas State University