similar to: [R] besselK

The besselK() function knows about overflows/underflows internally; there is a constant xmax_BESS_K in src/nmath/bessel.h (and referred to only in bessel_k.c), equal to 705.342, which is checked if expon.scaled is FALSE. (The equivalent number for bessel_i.c is 709, defined as exparg_BESS in bessel.h.) However, besselK(x) silently returns +Inf if x>705.342. This behavior is reasonable for

Assistance, besselK- complex number problem Im a student intrested in using R in my learning and research work in option pricing however i have a problem with besselK function In R. Would you assit me in computing the besselK of third kind of a complex number in R. Any code or suggestion will be highly appriceiated eg besselK(2,10) works well.. but besselK(2,10i) doesnt work !! im

Assistance, Im a student intrested in using R in my learning and research work in option pricing however i have a problem with besselK function In R. Would you assit me in computing the besselK of third kind of a complex number in R. Any code or suggestion will be highly appriceiated eg besselK(2,10) works well.. but besselK(2,10i) doesnt work !! im supprised it works in MATLAB but NOT

Dear R users, I'm porting a piece of Matlab code to R, but I'm now stuck with the following: I need an equivalent of besselJ(x, nu) that can handle a complex argument x. I couldn't find any R implementation. I did find a possible fortran solution in SLATEC (< http://www.netlib.org/slatec/ > , CBESJ-C), however I've never tried to use external C or Fortran code

Dear R users, I'm porting a piece of Matlab code to R, but I'm now stuck with the following: I need an equivalent of besselJ(x, nu) that can handle a complex argument x. I couldn't find any R implementation. I did find a possible fortran solution in SLATEC (< http://www.netlib.org/slatec/ > , CBESJ-C), however I've never tried to use external C or Fortran code

I'm not too happy with this either, but I believe the reason is that there would be a significant extra maintenance burden consisting of things that is not being used by R itself. In particular, complex math routines are little used and have historically caused a number of issues with correct argument and return-value passing. Notice that it is a bit of a can of worms involving matching up C

While a parsed HTML version of the NEWS.md file would be nice, I would like something much simpler: being able to "see? this file in the Help pane in RStudio or being about to run something like show_news(?packagename?). Duncan mentioned issues with the news() function being able to process metadata represented in the Md file. What is the motivation of this structure? > On 24 May 2015,

Peter, Is there not already a significant maintenance burden from cherry-picking routines? From my own experience (https://bugs.r-project.org/bugzilla/show_bug.cgi?id=16482 <https://bugs.r-project.org/bugzilla/show_bug.cgi?id=16482>) this is a painful process. And while users may not call these complex routines directly, R is often used as a front-end for libraries that do, so

> On 24 May 2015, at 12:07 pm, Duncan Murdoch <murdoch.duncan at gmail.com> wrote: > > On 23/05/2015 9:15 PM, Imanuel Costigan wrote: >> While a parsed HTML version of the NEWS.md file would be nice, I would like something much simpler: being able to "see? this file in the Help pane in RStudio > > That isn't really any simpler. RStudio is just displaying

On 24/05/2015 7:20 AM, Duncan Murdoch wrote: > On 23/05/2015 10:26 PM, Imanuel Costigan wrote: >> >>> On 24 May 2015, at 12:07 pm, Duncan Murdoch <murdoch.duncan at gmail.com> wrote: >>> >>> On 23/05/2015 9:15 PM, Imanuel Costigan wrote: >>>> While a parsed HTML version of the NEWS.md file would be nice, I would like something much simpler:

DeaR list, I happily use eigen() to compute the eigenvalues and eigenvectors of a fairly large matrix (200x200, say), but it seems over-killed as its rank is limited to typically 2 or 3. I sort of remember being taught that numerical techniques can find iteratively decreasing eigenvalues and corresponding orthogonal eigenvectors, which would provide a nice alternative (once I have the

Hi, keine ahnung. Das liegt jetzt bei Hr. Feld. Frag mal bei ihm nach. Gr??e Thushyanthan r-help-request at r-project.org wrote: > Send R-help mailing list submissions to > r-help at r-project.org > > To subscribe or unsubscribe via the World Wide Web, visit > https://stat.ethz.ch/mailman/listinfo/r-help > or, via email, send a message with subject or body 'help'

Dear R helpers, I've successfully created a package 'constants' using package.skeleton () with one dataframe and a few functions. However, now that I want to add some functions and data to the package, I run into a problem. I ran prompt(...) and moved + edited the resulting .Rd files as appropriate (I believe). The log file from RCMD check constants does indicate a few

I've been trough the R documentation for about half an hour and it's not clear to me how to do this: I need to format to character a series of integers from 1 to 1000, and I like them to look like "0001" "0002", "0059", "0123" and so on. Padded with zeroes to have four digits. Cheers! Mario. r-help-request at r-project.org wrote: > Send

On 23/05/2015 9:15 PM, Imanuel Costigan wrote: > While a parsed HTML version of the NEWS.md file would be nice, I would like something much simpler: being able to "see? this file in the Help pane in RStudio That isn't really any simpler. RStudio is just displaying HTML whenever it shows you anything in the Help pane. or being about to run something like show_news(?packagename?).

On 23/05/2015 10:26 PM, Imanuel Costigan wrote: > >> On 24 May 2015, at 12:07 pm, Duncan Murdoch <murdoch.duncan at gmail.com> wrote: >> >> On 23/05/2015 9:15 PM, Imanuel Costigan wrote: >>> While a parsed HTML version of the NEWS.md file would be nice, I would like something much simpler: being able to "see? this file in the Help pane in RStudio >>

On 23/05/2015 8:51 PM, Baptiste Auguie wrote: > John MacFarlane, the author of Pandoc, has been working on a project > (http://commonmark.org/) to define a standard reference for Markdown*. > There are already two reference implementations, one in javascript, the > other in C: https://github.com/jgm/cmark It sounds as though there are at least two possibilities for parsers that could

Hi, I was trying to get a graph in lattice with the following data frame (7 rows, 5 cols): chr start1 end1 meth positive 1 1 10 20 1.5 y 2 2 12 18 -0.7 n 3 3 22 34 2.0 y 4 1 35 70 3.0 y 5 1 120 140 -1.3 n 6 1 180 190 0.2 y 7 2 220 300 0.4 y I wanted the panels to be organized by 'chr' -

Dear all, The following example code produces a graph with ggplot2, to which I add several vertical lines of arbitrary colors. I am not satisfied with the legend: it automatically adds some vertical lines which I'd rather not see (they confuse the reader rather than add information in this case). > library(ggplot2) > dfr <- data.frame(values = sin(1:50/10), > fact =

Hello R list, I have two matrices of identical dimensions, and I want to fit a straight line for each pair of columns and plot the resulting lines. I got it to work with a for loop, but there must be a better way, > n<-5 > N<-10 > > data.x<-matrix(1:(n*N),ncol=n) > data.y<-matrix(1:(n*N) + rnorm(n*N,sd=1),ncol=n) > >