#169 help fitting

[Vincio]

Hi,

I do fit these data:

0 50414
17 46909
37.4 43600
77.8 38450
159 31637
316 24043

with the function
f(x)=a+b/(x-c)

I use the command:

fit f(x) 'data' via a,b,c

but the fit is not good.

Thanks in advances for help

Vincenzo

[Christoph Bersch]

You need reasonable starting values. If you don't specify any values for a, b and c, they are set to 1, which is very far away from your expected solution and doesn't converge properly.

Try with the starting values

a = 7000
b = 9e6
c = -200

[Vincio]

Thanks for the help ... now is good