Dear all I'm currently thinking in a way to compare experimental have a bell shape, composed of points and not connected to any parametric curve (the bell shape assumption could answer to the need in a first step).
A way I can imagine is to calculate a kind of " bandwidth" (-3 db). I add a look in the Scilab help but nothing obvious appears what is the best way to proceed to: - calculate/determine the intersection points with the "pseudo"-curves, - the number of points may change and may have different abscissa ? - the points could not necessarily by expressed by a parametric curve (to fit on before calculating the intersection), Any suggestion are welcome NB: please find hereafter a basic example using a gauss curve (just to illustrate the purpose) Thanks Paul ###################################################################### mode(0) // gauss curve coef = 10; x = [-6 : 0.1 : 6]'; [nl,nc]=size(x); y1 = coef*(1/sqrt(2*%pi))*exp(-0.5*x.^2); // -3db line top_ = max(y1); three_db = top_/sqrt(2); y2=three_db*ones(nl,1); plot2d(x,y1); // gausse curve plot2d(x,y2); // -3db line EXPORT CONTROL : Cet email ne contient pas de données techniques This email does not contain technical data
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