Re: [Gnuplot-info] fit-error for acsplines fit

[<lyn...@fr...>]

On 11/10/09 23:04:50, Hans-Bernhard Bröker wrote:
> lyn...@fr... wrote:
>
>>  I'm  wondering  if  there  is  some  way  to  get  a kind of fit-error for
acsplines.
>
> No.  Nor would it make much sense to try.  An acspline isn't a fit ---
> its parameters have no meaning to the actual curve, they don't model
> anything.

Thanks for Your quick answer.
If the acspline paramaters have no meaning to the actual  curve  I  wonder  if
there  is  a kind of measure that tells how big the average difference between
the actual data points to according spots of the acsplines curve is.
Basicly taking the y-value of the acspline curve  at  each  data  x-value  and
cumputing the difference to the data y-value. I just don't know how to get the
function of the acsplines. Since the computer nows where  to  plot  the  curve
points  it  must  know  the  y-values. The ugliest way to get them would be to
count the y-pixels in the plot...
Is there any better way to do this?

Regards,
Lynx