On Wed, Dec 18, 2013 at 3:38 PM, Charles R Harris <charlesr.harris@gmail.com
wrote:
On Wed, Dec 18, 2013 at 3:23 PM, Alan G Isaac <alan.isaac@gmail.com>wrote:
For teaching it is certainly nice to have numpy.polynomial.polynomial.polyfit providing modern (vs. traditional) parameter order, but
- it is rather buried - np.polyfit uses traditional order and has the same name
I recall there was some controversy (?) over all of this, but might it not be appropriate to have a keyword argument to both specifying whether the parameter order is to be modern or traditional (in both polyfits and polyvals)?
It would be messy, as there are a lot of functions in polynomial.polynomial that depend on the coefficient order. For the higher level Polynomial class, there is a routine in ipython that will do a pretty display of Polynomial instances which might be useful. Let's see... look here http://nbviewer.ipython.org/github/ipython/ipython/blob/master/examples/note... search the page for Polynomial.
Although beginning students might find the domain/window concept used in Polynomial confusing... Strictly speaking, the polynomial should be rendered as powers of ((x - off)/scale) if the domain differs from the window. Chuck