> On 7 Mar 2016, at 18:55, Berend Hasselman <b...@xs4all.nl> wrote: > >> >> On 7 Mar 2016, at 16:45, MAURICE Jean - externe >> <jean-externe.maur...@edf.fr> wrote: >> >> Hi Martyn, >> >> Many thanks for your answer. If I make it short : >> we can, once we know how to do it, 'drive' R from within FORTRAN for example >> to do a >> Myarray = seq(0, mydimension) >> in R once we have compute mydimension in FORTRAN. Is that correct ? > > I too do not understand what you mean by this. > > I told you on the R-help mailing list that what you could do is to > > - write a subroutine that calculates the required dimension given your > parameters; you can do this within R code.
Correction: write a subroutine in Fortran that calculates the required dimension(s), call that routine from within R and make it return the required dimension(s). etc.etc. Berend > - allocate in R (or C) a matrix/vector/.. with the required dimension. > - call your Fortran subroutine(s) with the allocated matrix/vector > > There are several packages, as I replied before on the R help list, that do > this (from within an R function or a C function). > > > Berend > >> If yes : it's too 'complicated' for the time I am hired (I mean I have been >> hired to do FORTRAN code not to learn R !). >> >> Second question : for what I have understood in r_exts, it's more >> 'efficient' to translate R routines in C rather than in FORTRAN (speed must >> be the 'same', but there are a lot more possibilities in C for the >> programmer) : right ? I do not know why my customer (client ?) wanted to >> translate some R routines in FORTRAN. May be it's by accident (in my humble >> opinion they even don't know about C). If you confirm this fact, I'll speak >> about C with my customer because we are at the very beginning of great works >> (great amounts of work ?) and I don't matter, I am also a skilled C >> programmer !! >> >> I hope you understand what I want to say, english is not my natural language >> ! >> >> Thanks again and best regards. >> Jean >> >> >> >> Ce message et toutes les pièces jointes (ci-après le 'Message') sont établis >> à l'intention exclusive des destinataires et les informations qui y figurent >> sont strictement confidentielles. Toute utilisation de ce Message non >> conforme à sa destination, toute diffusion ou toute publication totale ou >> partielle, est interdite sauf autorisation expresse. >> >> Si vous n'êtes pas le destinataire de ce Message, il vous est interdit de le >> copier, de le faire suivre, de le divulguer ou d'en utiliser tout ou partie. >> Si vous avez reçu ce Message par erreur, merci de le supprimer de votre >> système, ainsi que toutes ses copies, et de n'en garder aucune trace sur >> quelque support que ce soit. Nous vous remercions également d'en avertir >> immédiatement l'expéditeur par retour du message. >> >> Il est impossible de garantir que les communications par messagerie >> électronique arrivent en temps utile, sont sécurisées ou dénuées de toute >> erreur ou virus. >> ____________________________________________________ >> >> This message and any attachments (the 'Message') are intended solely for the >> addressees. The information contained in this Message is confidential. Any >> use of information contained in this Message not in accord with its purpose, >> any dissemination or disclosure, either whole or partial, is prohibited >> except formal approval. >> >> If you are not the addressee, you may not copy, forward, disclose or use any >> part of it. If you have received this message in error, please delete it and >> all copies from your system and notify the sender immediately by return >> message. >> >> E-mail communication cannot be guaranteed to be timely secure, error or >> virus-free. >> ______________________________________________ >> R-devel@r-project.org mailing list >> https://stat.ethz.ch/mailman/listinfo/r-devel > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
