Institut für Astronomie und AstrophysikAbteilung AstronomieSand 1, D-72076 Tübingen, Germany |
cafe_minimize_chisqdx
chi^2 metric function which takes x-error (dx) also into account
cafe
minimize,chisqdx
- x, y, error, model(x),x_error - parameter of the model
Returns the chi^2-value for given set of parameters: chi^2 = sum((y-model(x))^2/err^2) The error err is constructed by: err^2 = error^2 + (d(model)/dx * x_error)^2 (R. Bevington, p. 100).
None.
$Id: cafe_minimize_chisqdx.pro,v 1.2 2005/01/04 10:56:05 goehler Exp $
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