【转载】interpolation(插值)和 extrapolation(外推)的区别

【转载】interpolation(插值)和 extrapolation(外推)的区别

根据已有数据以及模型(函数)预测未知区域的函数值,预测的点在已有数据范围内就是interpolation(插值),

范围外就是extrapolation(外推)。

The Difference Between Extrapolation and Interpolation

figure: The left is an example of interpolation and the right is an example of extrapolation.