Curve Fitting by Points with Polynomial Regression

[Start14]

Hello, good afternoon, I would like to know how I can make a graph through a list of points by polynomial regression. I know that the values have to be calculated through a matrix, but I do not know how to enter them into Qt?
so that each list of data that I enter calculates the polynomial and fits a curve to the points.

[ChrisW67]

Nothing in Qt will do polynomial regression for you. For that you need a suitable library (maybe Eigen, or maybe something else already in your project) or to write your own code.