[SciPy-user] Statistics advise with scipy

Stéfan van der Walt stefan@sun.ac...
Wed Jul 23 10:16:57 CDT 2008


2008/7/23 David Huard <david.huard@gmail.com>:
> I've had some success with the following:
>
> 1. Define a simple statistical model for your data.  That is, from the
> previous data, define a distribution for the probability of the next
> point.
> 2. Define a cutoff probability separating valid data from outliers.
> 3. For each datum, compute its probability based on previous data, and
> tag it as valid or outlier.
>
> The advantage is that you can start with a simple statistical model (
> for example a gaussian centered on the last valid entry ) and
> customize it as you find cases that are not well handled.

There's also

http://www.scipy.org/Cookbook/RANSAC

Cheers
Stéfan


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