Programmatically finding "significant" data points

Ganesan Rajagopal rganesan at
Tue Nov 14 15:36:58 CET 2006

>>>>> Jeremy Sanders <jeremy+complangpython at> writes:

>> How do I sort through this data and pull out these points of
>> significance?

> Get a book on statistics. One idea is as follows. If you expect the points
> to be centred around a single value, you can calculate the median or mean
> of the points, calculate their standard deviation (aka spread), and remove
> points which are more than N-times the standard deviation from the median.

Standard deviation was the first thought that jumped to my mind
too. However, that's not what the OP is after. He's seems to be looking for
points when the direction changes. 


Ganesan Rajagopal

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