![Regression coefficients for orthogonal polynomials](https://blogs.sas.com/content/iml/files/2011/08/t_orthogpoly.png)
In a previous post, I discussed computing regression coefficients in different polynomial bases and showed how the coefficients change when you change the basis functions. In particular, I showed how to convert the coefficients computed in one basis to coefficients computed with respect to a different basis. It turns out