Add wave length metric to group analysis

Regression from region analysis.

Details

2011-06-30 15:06	Mathew Topper <mathew.topper@...>	closed with disposition fixed
For group analysis the wavelength can be recorded at the time of splitting choosing the average wavelength if more than one wave should be in each split.

2011-06-29 16:08	Mathew Topper <mathew.topper@...>	changed status from unstarted to in_progress
Starting to do this. For wave groups the wave should be trimmmed to a wavelength so in theory this is easy. If it's longer than a group tho, then another method will be required.

2011-06-29 16:03	Mathew Topper <mathew.topper@...>	created