Let's say I measure temperature at locations on a regular 3x5 grid but I am missing data at the 4 grid corners. If I use the available measurements to estimate the grid corner values, am I performing extrapolation or interpolation? It seems like it's extrapolation because at an given corner, I have measurements at only 3 of the 8 neighboring points, and no 2 neighboring points which have measurements can be connected with a line that goes through the grid corner. So does that mean it's extrapolation?

  • 3
    $\begingroup$ That's what I would say. Go for it. $\endgroup$ – Ethan Bolker Apr 22 at 12:03

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.