Tag: Randy Sargent


Randy Sargent on Using Spectrograms to Visualize Heart Rate Variability

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…