Matlab function to parse a Polar brand heart rate monitor .hrm files into matlab.

Created by: Cameron Stewart 23/03/2017 [email protected]

https://hackingismakingisengineering.wordpress.com/ https://github.com/cstewart000/polarHRM

@Input Arguments: path = the absolute path of the ".hrm" file to read in. Ues a period ('.') before the path to make the path relative to the working directory

@Output Values dataDate - the start date of the data set as a string in: 'yyyyMMdd' format time - the start time of the data set as a string in: 'HH:mm:ss.s' format heartRateBpm - a vector of the heart rate in BPM at each reading interval elapsedtimeSS - a vector of the elapsed time in seconds between each HR value.

Note: The heart rate monitor records the time between beats in ms. The frequency of the reading is therefore iregular. The rate is measured as the inverse of the time between each reading:

HR_{bps} = 1/(T_{reading.ms}/1000)

Example call: [dataDate, dataTime, heartRateBpm,elapsedtime] = readInHRMfile(".<your_file>.hrm")