extrapolation of discrete data points

I have some measured data which is in a frequency band of 5-10 GHz , due to limitations of measurement i could not get the data over complete band ie from 0-10 GHz. Kindly suggest me some code or technique by which i can extrapolate the data over 0-5 GHz also.

[Andrew Newell]

In general, you can't reliably extrapolate so far outside of the data.

Answer 1

[Sean de Wolski]

Fun reading:

Mark Twain on Extrapolation