Re: [Gnuplot-info] Help needed with curve fitting function

[Gopesh P. <gop...@ya...>]

Hello Mr.Br=C3=B6ker,

Thanks for your help. I got what you want to explain about pipe. I used the
pipe  to send commands to gnuplot from Visual Basic (Shell and Sendkeys
functions in VB). =20
But my gnuplot command is a curve fitting function for which initially I
guess parameter values a and b and then gnuplot will do fitting and display
final set of parameters.=20
Now my question is that is there any way by which gnuplot can store, send
back those a and b variables to VB and then I pipe these final values again
to gnuplot. This can give me complete automation.

Thanks,
Gopesh


Gopesh Patel wrote:
>=20
> Hello members,
>=20
> I have a data file containing two columns and I have a fitting function
> like this : f1(x) =3D a1 * sin(x) + b1=20
>=20
> Now I want to multiply my fitting function with 1st value of the 2nd
> column like this:
> f1(x) =3D a1 * [1st value of 2nd column * sin(x)] + b1.=20
>=20
> Is it possible to access the individual values of the column and use them
> like above ? Or can I declare some variable and store individual value in
> and use it in fitting function?
>=20
> Thanks and regards,
> Gopesh
>=20

--=20
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