Computing means and standard deviations for data can be hard. Naively implementing the formula can result in large numerical errors.
A better way is to use Welford's Algorithm, which is numerically stable.
Below is a gist for doing just that.
Wednesday, March 21, 2012
Python Email Notification
So, I occasionally want to run a long simulation, and not really pay attention to when it finishes.
Ideally, I could have python email me when it was done. Even more ideal, I could have it use gmail to send the email notification.
Well, I've done just that, along with using netrc to hold the password configuration so I know its secure.
The Gist is up at https://gist.github.com/2150894, or copied below.
Ideally, I could have python email me when it was done. Even more ideal, I could have it use gmail to send the email notification.
Well, I've done just that, along with using netrc to hold the password configuration so I know its secure.
The Gist is up at https://gist.github.com/2150894, or copied below.
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