> 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. - 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
