IWR6843ISK: Can I calculate Heart Rate from the heartWaveform?

Hi. I am working on a vital sign and people tracking lab using iwr6843isk. Using the vital signs demo, i removed the gui and now printing the tlv on terminal. The output is something like this:

{'id': 0, 'rangeBin': 20, 'breathDeviation': 0.048691168427467346, 'heartRate': 50.222999572753906, 'breathRate': 8.370499610900879, 'heartWaveform': array([ 0.86059463,  1.04824829,  0.42776072,  0.0727855 , -0.51534158,
       -0.74624664,  0.02245116,  0.71801144,  0.22312623, -0.54793614,
       -0.5105049 ,  0.14516413,  0.63904893,  0.36525893, -0.13669723]), 'breathWaveform': array([ 0.09731063,  0.15408069,  0.20838943,  0.22160998,  0.12035841,
       -0.16349548, -0.43794873, -0.61873639, -0.59648955, -0.49010944,
       -0.34530759, -0.20679832, -0.05008197,  0.10133719,  0.3492403 ])}