try : library(Bolsatd) ?sintegral
or: library(caTools) ?trapz David Gouache Arvalis - Institut du Végétal Station de La Minière 78280 Guyancourt Tel: 01.30.12.96.22 / Port: 06.86.08.94.32 -----Message d'origine----- De : Ptit_Bleu [mailto:[EMAIL PROTECTED] Envoyé : lundi 17 septembre 2007 12:09 À : [EMAIL PROTECTED] Objet : [R] Must be easy,but haven't found the function (numerical integration) Hi, I have a data frame of 2 columns with the following types : data$day char data$value num And I plot my data with : plot(strptime(donnees$day,format="%Y-%m-%d %H:%M:%S"),donnees$value, type="l") And I'd just like to get the numerical value of the integration of this graph. I looked at ?integrate but, as far as I understood (that is, not very much, due to my poor english), it seems that it doesn't work with values in data frame. Could you please help me to do this ? Thanks in advance, Have a nice week, Ptit Bleu. -- View this message in context: http://www.nabble.com/Must-be-easy%2C-but-haven%27t-found-the-function-%28numerical-integration%29-tf4465684.html#a12732936 Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
