word choice - Hypernym for "interpolation" and "extrapolation"


Interpolation typically means modeling the values of some curve inside the given data, and extrapolation — outside the given data. For example, if I know the temperature on Monday and Wednesday, and ask for what it was on Tuesday — this is interpolation. If I ask for what it was on Sunday before or Thursday after, it is extrapolation.


I am looking for a word that would encompass both. I thought of modeling, but is there perhaps something better?



Answer



"data fitting" or "curve fitting" - depending on the context.


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