Refactor TimeSeries.coherence to use scipy.signal.coherence
This PR closes #1328 (closed) by reimplementing TimeSeries.coherence
to call out to scipy.signal.coherence
rather than mlab.cohere
.
This PR closes #1328 (closed) by reimplementing TimeSeries.coherence
to call out to scipy.signal.coherence
rather than mlab.cohere
.