curve fitting
process of constructing a curve, or mathematical function, that has the best fit to a series of data points
en-GB/ˈkɜːv ˈfɪtɪŋ/
en-US/ˈkɝv ˈfɪtɪŋ/
process of constructing a curve, or mathematical function, that has the best fit to a series of data points