Logfit Problem

hello folks,

I fail to find the cause of my problem.

When fitting a function to measurement data, the continuous version; i.e. with x a dependent variable, it works like a charm. when I try the same piecewise; i.e. with the values from the data set, all but the last value are zero. Any clue to the whys and whats?

Thanks

Raiko

P.S.

As always, MC15 on win7 on a 64 bit machine