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Randy Sargent on Using Spectrograms to Visualize Heart Rate Variability
Gary Wolf
January 4, 2016
Let’s start 2016 with a very interesting talk by Randy Sargent about how to visualize the very large data sets produced by some kinds of self-tracking. Randy’s idea about using spectrograms, normally used for audio signals, to create a portrait of your own time series data, is completely novel as far as I know. If…