Still exploring data; added histograms to determine decision boundaries.
Implemented two new signals for the Time-series.
1.) On-Off signal. On indicated by a "1", Off by a "0".
2.) Switch signal.
2a.) 1 --> "First On" in a sequence of contiguous "on"s.
2b.) -1 --> "First Off" in a sequence of contigous 'off's.
2c.) 0 --> everything else.
Further analysis of test data in the explore_data script. Implemented
some visualizations of distribution of 'off' state lengths/window sizes.
Also created a spectrogram of data to identify harmonic behaviors in the
data.