similar to: calling R from C

Displaying 20 results from an estimated 4000 matches similar to: "calling R from C"

2003 Apr 24
1
estimating number of clusters ("Null or more")
Hi all, once more about the old subj :-) My data has too much various distribution families and for every particular experiment I need just to decide whether the data is "quite homogeneous" or it has two or more clusters. I've revisited the following libraries: amap, clust, cclust, mclust, multiv, normix, survey. And I didn't find any ready-to-use general
2003 May 08
2
approximation of CDF
Hi all, is there any package in R capable of smooth approximation of CDF basing on given sample? (Thus, I am not speaking about ecdf) In particular, I expect very much that the approximation should subject to the property: f(x0)<=f(x1) for x0<x1, where x0 and x1 belong to range of the sample given. Polynomial approximation could be OK for me as well. P.S.
2003 Apr 25
2
AW: numericDeriv and ecdf
> On only ten points, what did you expect ? Even with 1000 > observations, estimating a density is difficult, and has > been the subject of a century of research. Kernel density > estimates are among the most successful. For your immediate > application, try plot(density(rnorm(10)), type="l"), etc. wait, you misunderstood me! I'd like to see 10 or 9 points with
2003 Apr 25
1
numericDeriv and ecdf
Hi All, following expression: x <- sort(rnorm(10)); e <- ecdf(x); d <- numericDeriv(e(x),"x"); makes d far from approximation of one dimensional pdf. What's wrong then here? Kind regards. --------------------------------------------------------------------------- Valery A.Khamenya Bioinformatics Department BioVisioN AG, Hannover
2003 May 08
1
AW: approximation of CDF
> Almost any method of fitting a density estimate would work on > integrating (numerically) the result. it is a nice idea concerning the monotony property, which will be obtained automatically, but I am going to use results of approximation analytically > In particular, look at package polspline, where > p(old)logspline does the integration for you. thank you, I am going to
2003 May 13
3
homals for win32?
Hi All is there "homals" package prepared for win32? kind regards, Valery A.Khamenya --------------------------------------------------------------------------- Bioinformatics Department BioVisioN AG, Hannover
2003 May 15
1
error-prone feature?
Hi All, while looking why the cclust(cclust) doesn't work for 1-dimensional data, I've found unpleasant behavior in semantics of R. Indeed: is.matrix(matrix(cbind(c(1,2,3,4)),ncol=2)[1:2,]) == TRUE but: is.matrix(matrix(c(1,2))[1:2,]) == FALSE kind regards, Valery A.Khamenya --------------------------------------------------------------------------- Bioinformatics
2003 May 15
2
AW: error-prone feature?
> Well, that is in all good texts on R, together with the > solution: drop=FALSE. See ?"[" for the on-line details. OK. Thank you a lot. Now patched cclust and clustIndex work fine for 1D case. BTW, why not to apply the "drop=F" to these functions? I guess other users need 1D case as well. kind regards, Valery A.Khamenya
2004 Aug 09
5
AW: built-in Sweave-like documentation in R-2.x
> See the 'Writing R Extensions' manual, specifically > Creating R Packages -> Writing package vignettes thank you, i saw this entry. However, this entry is rather about how to include documents (in particular Sweave-based) into a package. But I have meant smth else. Let me explain in example. Today I use emacs as environment for my R-sessions. I am quite happy to use
2004 Aug 09
3
built-in Sweave-like documentation in R-2.x
Hi devels, i did not find at this page: http://developer.r-project.org/ideas.txt any ideas concerning incorporating documentation possibilities (say, Sweave-based) into R-scripts. Was it discussed already? (If discussed, then what is the decision/conclusion then?) thanks, Valery
2004 Oct 08
3
provide extra variables to environment in call
Hi all, Situation: there is a function `f' already defined by someone and provided in package. `f' looks like that: f <- function() { x+1 } i.e. `f' is not closed i.r.t. term `x' now I have my own function `g', where I'd like to override variable `x' while calling `f': x <- "dummy gloabal value" g <- function() { x
2004 Oct 01
5
R-2.0: roadmap? release statements? plans?
Hi all, I took a look at last 2 months post in R-help maillist and surfed through the R-project.org . Unfortunately, I can't find some page with roadmap/statements about major changes coming in R-2.0 in comparison to R-1.9 Could anyone point me to the right URL? Thank you in advance. -- Valery
2004 Oct 01
5
R-2.0: roadmap? release statements? plans?
Hi all, I took a look at last 2 months post in R-help maillist and surfed through the R-project.org . Unfortunately, I can't find some page with roadmap/statements about major changes coming in R-2.0 in comparison to R-1.9 Could anyone point me to the right URL? Thank you in advance. -- Valery
2004 Sep 30
2
How to save graphics in portable way in batch mode?
Hi all, What is the right portable way to save graphics in batch mode? Remarks: 1. Problem is STFWed and RTFMed. In particular a short note about png() is found in R-FAQ. In fact, there were stated that png() is not reliable under Linux in batch mode. 2. savePlot under windows is quite convenient, but not supplied under Linux. 3. pdf() + postscript() < savePlot()
2008 Mar 17
2
[LLVMdev] LLVM has entered the google trends!
Hi all see $subj http://www.google.com/trends?q=llvm congrats! P.S. sorry if known. best regards -- Valery A.Khamenya -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20080318/2bfc6887/attachment.html>
2003 Apr 28
0
AW: AW: numericDeriv and ecdf
Dear Prof. Brian Ripley, first of all thank you for your answer, I do appreciate how do you manage to keep successfully all your activities and answer posts in this forum! > An empirical CDF is a step function: it does not have a > derivative at the jump points, and has a zero > derivative everywhere else. of course! Let me add few words concerning my simple motivation. 1.
2003 May 15
0
AW: AW: error-prone feature?
> Nothing to do with me: you should report problems with > packages to the > maintainers, rather than R-help or a member of R-core. OK. I've sent a note about cclust patch to Evgenia Dimitriadou Thank you for your valueable comments. (No more reply needed in this thread) kind regards, Valery A.Khamenya ---------------------------------------------------------------------------
2003 Oct 28
2
[LLVMdev] cfrontend/src/configure
Hi all, subj has the first line: #! /usr/dcs/software/supported/bin/bash I think we could be more liberalistic :) best regards, --- Valery A.Khamenya
2010 Sep 13
4
[LLVMdev] Any experiemnts/evaluations on LLVM and graph rewriting (term-rewriting) systems?
Hi, are there any attempts to use LLVM in graph-rewriting (term-rewriting) language implementations? How good is LLVM for this? E.g., is it natural to expect that the LLVM-based implementation of the language Concurrent Clean be any faster than its reference implementation? Best regards -- Valery A.Khamenya -------------- next part -------------- An HTML attachment was scrubbed... URL:
2004 Aug 17
4
[LLVMdev] compilation error after updated from cvs:
Building PowerPC.td register information header with tblgen Included from PowerPC.td:22: Parsing PowerPCInstrInfo.td:53: Variable not defined: 'GPRC'! make[3]: *** [PowerPCGenRegisterInfo.h.inc] Error 1 make[3]: Leaving directory `/pool/tmp/ssrc/llvm/lib/Target/PowerPC' maybe I just have to "make clean" and/or ./configure BTW, would it be nice to put Depend, Release and