Sorry sorry, I didn't pay enough attention to order() help pages indeed... and it costs me much useless indexing.
As concerns how to put legend in image() plot, is there a piece of information about somewhere ? thanks a lot for helping, Jacques VESLOT -----Message d'origine----- De : Uwe Ligges [mailto:[EMAIL PROTECTED] Envoyé : mercredi 21 juillet 2004 10:48 À : [EMAIL PROTECTED] Cc : [EMAIL PROTECTED] Objet : Re: [R] How to sort TWO columns ? Jacques VESLOT wrote: > Dear ALL, > > I fear my question has already been answered many times before, but I > haven't fund that in archives... > > I am working on spatial datasets and, in most arrays I'm handling, there are > two columns dedicated to (x,y)-coords. > For different reasons - notably to draw image() plots, I need to have these > two columns sorted in increasing order. > But sort() and order() seem to apply to vectors - or one single column - > only. > > Could somedy please let me know how to sort two columns of a dataframe, with > priority to one of them, just like in access ? See ?order Uwe Ligges > Thanks, > > Jacques VESLOT > CIRAD > > Another related question : > How to put legend on image() plots - or image-based plots like > image.kriging() in geoR ? > Despite help pages, I haven't succeeded. > > > > ----------------------------------------------------- > CIRAD 3P Reunion - MailScanner > ----------------------------------------------------- > Ce message a été vérifié par MailScanner > et analyse par 4 antivirus : > ClamAv - BitDefender - F-Prot - Panda. > > Aucun virus,ni rien de suspect n'a été trouvé. > > This message has been scanned for viruses and > dangerous content, and is believed to be clean. > > ______________________________________________ > [EMAIL PROTECTED] mailing list > https://www.stat.math.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html ----------------------------------------------------- CIRAD 3P Reunion - MailScanner ----------------------------------------------------- Ce message a été vérifié par MailScanner et analyse par 4 antivirus : ClamAv - BitDefender - F-Prot - Panda. Aucun virus,ni rien de suspect n'a été trouvé. This message has been scanned for viruses and dangerous content, and is believed to be clean. ----------------------------------------------------- ----------------------------------------------------- CIRAD 3P Reunion - MailScanner ----------------------------------------------------- Ce message a été vérifié par MailScanner et analyse par 4 antivirus : ClamAv - BitDefender - F-Prot - Panda. Aucun virus,ni rien de suspect n'a été trouvé. This message has been scanned for viruses and dangerous content, and is believed to be clean. ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html