Non Linear, Regression, Data Science, Python, Least Squares.
the ith observed value of the y_obs vector which is of size (m x 1). We will assume that the regression matrix X is of size (m x n) i.e. it has m data rows and each row contains n regression variables. The y matrix is of size (m x 1) and the coefficients matrix is of size (m x 1) (or 1 x m in its