search for: square_root

Displaying 1 result from an estimated 1 matches for "square_root".

2003 Oct 22
2
non linear regression with R
Dear Colleagues, I have x, y data (pollen and seed dispersal from oaks !) that I would like to fit with a function which look like this: p(a,b,x,y)=b/(2*pi*a?gamma(2/b))*exp(-(square_root(x?+y?)/a)power(b)) I am looking for a and b values that fit my data at best. Can someone give me hints to perform such an analysis with R ? Thanks a lot Sophie Sophie Gerber gerber at pierroton.inra.fr INRA - UMR BIOGECO 69 route d'Arcachon...