Help and contact

If you have any questions or comments about this website, please email us using this address. We would especially like to hear:

• Questions about how to use the online calculators
• Bug reports (e.g. crashes, or questionable results). When reporting a bug, please provide the input you used when the problem occurred.
• Ideas for new functionality, such as graphs, statistical tests, visualizations, etc. If we get enough interest in a particular type of analysis we'll do our best to add it.

Unfortunately we are unable to help with the analysis or interpretation of data.