You are not logged in.
login | register

Discussion: All Topics
Topic: Tool: Polynomial Fitting
Related Item:

Post a new topic to the tool: ScatterPlotApplet discussion
<< see all messages in this topic
<previous message | next message >

Subject:   RE: Tool: Polynomial Fitting
Author: Alan Cooper
Date: Jul 23 2004
On Mar  6 2004, Steve wrote:
> ...I am curious as to why the program limits itself to a
> polynomial of degree (n-2), where n is the number of data points...

I believe that the purpose of the applet is just to illustrate approximate
fitting (by least squares) when an exact fit is not possible, and since degree
n-2 gives an exact fit, the limit has been set at n-1. This intent might
have been more clearly stated perhaps, and it might have been paedagogically
useful to also allow the user to set higher degrees and see the exact fit. I
would also like to see more explanation of the "error bounds" as in fact I have
no idea what they are supposed to represent.


Reply to this message          Quote this message when replying?
yes  no
Post a new topic to the tool: ScatterPlotApplet discussion
Visit related discussions:
ScatterPlotApplet tool

Discussion Help