Displaying 1 result from an estimated 1 matches for "xplus".
Did you mean:
plus
2004 Jun 23
1
Fitting function with if-clause (nls; e.g. heaviside)
Hallo!
I want to fit a function. The function is e.g.:
y = c+m1*x if x<0, c+m2*x if x>=0
where m1, m2 and c is a parameter and x, y are
variables of a data frame.
I think using nls is appropriate. But I do not know,
how to type this formula in nls. Can anybody help?
(If there is a possibility to use a Heaviside-function
this would be enough.)
Karl