similar to: Improving help in R

Displaying 20 results from an estimated 2000 matches similar to: "Improving help in R"

2007 Jul 11
1
RPM Build Question
Hi People, I have just started building my own RPMS on both Fedora and CentOS and generally things have gone well. Currently I am trying to create RPMS for some commercial software that we have purchased. Step 1 was install the software using its JAVA Based installer ensuring that all files were installed into a particular directory in /usr/local. Step 2 was create a tar file of the
2010 Jul 14
3
Mathematica and R
What are some effective ways to leverage the strengths of R and Mathematica for the analysis of a single data set? More specifically, are there any functions that can assist with any of the following? 1. Calling an R function from Mathematica. 2. Calling a Mathematica function from R. 3. Using XML or another reliable data format to pass vectors, matrices, and/or lists from one environment to
2006 Sep 01
1
integration problem with gamma function
Dear R-list members, I have a problem with translating a mathematica script into R. The whole script is at the end of the email (with initial values for easy reproduction) and can be pasted directly into R. The problematic part (which is included below of course) is <--- Original Mathematica ---> (* p_svbar *) UiA = Ni (Dsi - 2Di A + A^2)/2; UiiA = Nii (Dsii - 2Dii A + A^2)/2; psvbar =
2010 Jul 14
3
Convergent series
What are some reliable R functions that can compute the value of a convergent series? David -- David R. Bickel, PhD Associate Professor Ottawa Institute of Systems Biology Biochem., Micro. and I. Department Mathematics and Statistics Department University of Ottawa 451 Smyth Road Ottawa, Ontario K1H 8M5 http://www.statomics.com Office Tel: (613) 562-5800 ext. 8670 Office Fax: (613) 562-5185
2008 Nov 18
1
Mathematica now working with Nvidia GPUs --> any plan for R?
Dear All, I just read an announcement saying that Mathematica is launching a version working with Nvidia GPUs. It is claimed that it'd make it ~10-100x faster! http://www.physorg.com/news146247669.html I was wondering if you are aware of any development going into this direction with R? Thanks for sharing your thoughts, Best wishes, Emmanuel
2007 Jun 22
3
How to run "mathematica" or "c" programs in R?
I have some programs which were writen in mathematica or c language, but I donot know how to use these software. So I want to run them in R. Can I do it ? How to run "mathematica" or "c" programs in R? Jian Zhang [[alternative HTML version deleted]]
2001 Sep 29
2
Mathematica Notebook Frontend
Hi, I need some help getting the Frontend to work - MathKernel.exe is working but when I try wine Mathematica.exe I get a lot of error messages - I'm using Mathematica Version 4.0 and wine20010824. At the end of the post there is the complete message I get from wine. Thanx a lot CFU wine Mathematica.exe For language 'german' several language ids were found: de_DE - 0407; de_CH
2008 Mar 06
1
Interesting remarks about R back in 1999
Hi, this is not an R-help post, but I found this extract below that was written by a leading mathematician back in 1999 when he was talking about statistics and computing. I found it interesting to share and I ask your opinion do you think this still holds today or things have changed? Thanks. ?...we would also like to mention that in our opinion Mathematica provides an excellent and indeed
2011 Apr 01
1
Adding a "description" meta-tag to the R homepage
Hello all, I hope I'm writing to the correct place. I believe that the R homepage will benefit from including the "description" meta tag in it's homepage. The reason is that google uses that tag to decide what to show when the R homepage shows up on a search result. The current description of the first result of searching "R" in google is: "*R*, also called GNU
2010 Jul 17
2
re. Mathematica and R
David - information on calling R from within Mathematica can be found at the following link: http://www.mofeel.net/1164-comp-soft-sys-math-mathematica/13022.aspx HTH, Alan Kelly
2007 Oct 10
2
pt inaccurate when x is close to 0 (PR#9945)
Full_Name: Skylab Gupta Version: R version 2.5.1 (2007-06-27) OS: Windows XP Submission from: (NULL) (216.82.144.137) Hello, I have been playing around with the statistical distributions in R. I think the computations for the cumulative distribution function of the students t distribution in R are not very accurate. For instance, the cdf of a students t distribution with 13 degrees of freedom
2006 Mar 24
2
MacOS X Quartz Rendering?
I just tried rendering a plot of 166 data point (time series) on my PPC mac, and compared it with the same data rendered by Mathematica. The R plotting is very slow to paint and repaint, compared to Mathematica. This also makes it extremely awkward to use in other documentation such as pdfLatex. On closer inspection, it looks like the Mathematica plot is just a polyline, while in R it is a
2012 Mar 08
1
Doing Mathematica Quantile[] function in R
Hi all, I am an R newbie trying to do some calculations I do in Mathematica in R on a GNU/Linux system. The main thing I am interested in doing is taking a 0.999 quantile on a data set in a file who's data is normally distributed, say foo.csv. e.g in Mathematica if I have something like this : a=Import["foo.csv"] b=Transpose[a][[1]] Quantile[b,0.999] In R I can load all the data
2006 Aug 07
1
mathematica -> r (gamma function + integration)
Dear R-list, I try to transform a mathematica script to R. #######relevant part of the Mathematica script (* p_sv *) dd = NN (DsD - DD^2); lownum = NN (L-DD)^2; upnum = NN (H-DD)^2; low = lownum/(2s^2); up = upnum/(2s^2); psv = NIntegrate[1/(s^NN) Exp[-dd/(2s^2)] (Gamma[1/2,0,up] + Gamma[1/2,0,low]),{s,sL,sH}, MinRecursion->3]; PSV = psv/Sqrt[2NN]; Print["------------- Results
2010 Dec 16
3
How to save & play back an entire R session?
I know that at the end of an R session I'm given the option to save the current *state* of the session. But I would like to save the entire sequence of inputs that took place during the session, so that I can play them back later, and not only be left in the same state I was at the time of saving the session, but be able to see the entire history of the session (inputs and outputs). (This is
2011 Sep 12
3
Solve your R problems
R-help is all about solving R problems. So here ya go: http://www.portfolioprobe.com/2011/09/12/solve-your-r-problems/ -- Patrick Burns pburns at pburns.seanet.com twitter: @portfolioprobe http://www.portfolioprobe.com/blog http://www.burns-stat.com (home of 'Some hints for the R beginner' and 'The R Inferno')
2006 Oct 16
1
The old question: R vs MATLAB vs Mathematica vs ...
Hi, This question seems to be old, however I am asking it from a different point of view. R introduces itself as a 'statistical' language and environment. There are many discussions about comparing R to MATLAB or mathematica (or other similar software). It seems to me that these other software have a broader range of applications. For example, in Mathematica one can solve a partial
2007 Aug 30
2
Incomplete Gamma function
Hello I am trying to evaluate an Incomplete gamma function in R. Library Zipfr gives the Igamma function. From Mathematica, I have: "Gamma[a, z] is the incomplete gamma function." In[16]: Gamma[9,11.1] Out[16]: 9000.5 Trying the same in R, I get > Igamma(9,11.1) [1] 31319.5 OR > Igamma(11.1,9) [1] 1300998 I know I have to understand the theory and the math behind it rather
2004 Mar 19
3
Incomplete Gamma Functions and GammaDistribution Doc errata.
Hello all, In the course of trying to implement the CDF of an InverseGammaDistribution, I have run across the need for an igamma() function. Several others have needed this function but the answers I have found so far are not totally clear to me. I'm writing for three reasons: 1) to present a small error in the docs 2) to clarify the approach we are expected to take 3) to request,for the
2007 Nov 23
5
Adobe products under Linux?
Also sent to Codeweavers - [what is this list's insights?] I have a 32 GB, dual quad-core desktop machine and was considering 32-bit Windows XP w/SP2, but discovered it only supports up to 4 GB RAM, so that idea is shot. Next in line is 64-bit CentOS 5. The major need for Windows would be very active use of Adobe Acrobat 8, Photoshop CS3, and Illustrator CS3. There may also be the need