Take the 2-minute tour ×
Geographic Information Systems Stack Exchange is a question and answer site for cartographers, geographers and GIS professionals. It's 100% free, no registration required.

I want to numerically integrate a set of discrete values that keep arriving at constant time intervals. Which interpolation method do I choose? how to reduce the ringing artifacts if I use cubic spline interpolation?

share|improve this question
Could you please provide some context and clarify what you need? The title says "interpolate" but the question itself says "numerically integrate"; the two are different operations. –  whuber Jun 7 '12 at 15:44
and I guess what you really want to do is extrapolate. Do you have spatial data or not? –  johanvdw Jun 7 '12 at 18:47

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.