A quick Google suggests that sintegral is in the Bolstad2 package: http://cran.r-project.org/web/packages/Bolstad2/
"R. Michael Weylandt" <michael.weyla...@gmail.com> wrote in message news:CAAmySGOCtNxWNHJDka=68criphxnppwap6fm7ufkhtx7xsz...@mail.gmail.com... > You can't just decide a command exists and try to use it by your > arbitrarily chosen name .... did you look at the function integrate() > which does exist? It uses a smarter algorithm than Simpson's rule. > > Alternatively, Simpson's rule is very easy to code with vectorization > -- you should be able to implement it yourself in just a few lines > after reading "An Introduction to R". > > Michael > > On Mon, Apr 30, 2012 at 6:17 AM, sappy <robert.wittk...@gmx.de> wrote: >> Hello, >> >> i have a question calculating the shaped area between the two curves (see >> image). >> >> http://r.789695.n4.nabble.com/file/n4597813/test.png >> >> I try to use a Simpson-Integral but it doesn't work. "R" doesn't know the >> command! >> It is possible, that i need a library? >> >> Curve 1: y >> Curve 2: z >> >> q<-abs(y-z); est<-sintegral(x,z) >> >> Greetings >> >> -- >> View this message in context: >> http://r.789695.n4.nabble.com/Area-between-2-curves-tp4597813.html >> 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. > ______________________________________________ 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.
