Improved HeatMap constructor
Improved HeatMap constructor

basnijholt/holoviews,mjabri/holoviews,ioam/holoviews,ioam/holoviews,basnijholt/holoviews,mjabri/holoviews,basnijholt/holoviews,vascotenner/holoviews,ioam/holoviews,mjabri/holoviews,vascotenner/holoviews,vascotenner/holoviews