On 16/08/11 05:07, Mariana Varela wrote:
HI there, I have been trying to use a code posted on R help to be able to calculate area
under the curve for complicated data points and there seems to be an issue with the code:
no "b" object found. I am not a good R user and can't find were the problem is.
Any help? Thanks!!
This is the code ( as a test run I gave it this info because I know the answer:
x<-seq(1:50)
y<-seq(1:50)
There is nothing wrong with the code, except for a few typographical errors
in the code *as you posted it*. (A missing "^" and a missing line feed.)
How did you actually call simp()? Your posting does not show this.
With your x and y (why wrap the 1:50 up in seq()? just x <- 1:50 is
what is required) I get
> simp(y,x=x)
[1] 1249.5
(which is the right answer! :-) )
cheers,
Rolf Turner
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