search for: eospansite

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2009 Aug 07
0
Problem with area()
I'm using area() to evaluate the area under 2 functions (defined using approxfun()) and the result is in contradiction with visual inspection (please see: http://sites.google.com/site/eospansite/dummy/problem_area.jpg ) The area under the red curve should be larger than the one under the black curve, but I'm geting the opposite result using area(). This is what I'm doing: require(MASS) f1 <- approxfun(x,y1) f2 <- approxfun(x,y2) plot(x,y1,ylim=range(c(y1,y2))) lines(x,...