Re: [Gnuplot-info] Calculating area

[warpino <nun...@gm...>]

Of course that's not going to give the area. But I'm interested in knowing
if there's a way as well.

In excel I do a trapezoidal integration sum(i)
((x(i+1)-x(i))*(y(i+1)+y(i))/2) . How can I do the same wiht gnuplot on a
data set?

Thanks,

w.


Hans-Bernhard Bröker wrote:
> 
> horatiu wrote:
>> Can I calculate with gnuplot the area under a graph. 
> 
> Depends on the graph. ;-p
> 
> If it's a function plot, have a look at the 'bivariat.dem' example 
> script that came with the program.
> 
>  > In MS Excel I add the
>> results of (x value) * (y value ). 
> 
> ... I hope you don't, because that is *not* going to give you the area 
> under the graph.
> 
> 
> 
> 
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