Definitions for "Curve fitting"
The creation of a curved line, often based on a nonlinear regression model, that best represents a set of data points.
The attempt to find a pattern in data by drawing a line through a set of points so that it goes as close as possible to all of them. This could be a straight line but is more generally a curved one, ideally with an underlying equation which would help to analyse the data.
An automated mapping function that converts a series of short connected straight lines into smooth curves to represented entities that do not have precise mathematical definitions (such as rivers, shorelines, and contour lines).
The sketching of a line or curve to best describe a relationship between two variables on a scatter plot.
Plotting data and observing the pattern to predict trends.