initialize gradient array with sensible values (non-NaNs).
initialize gradient array with sensible values (non-NaNs).

mhdella/deeppy,hendrikTpl/deeppy,mqyqlx/deeppy,bssrdf/deeppy,appapantula/deeppy,rajat1994/deeppy,MohammedWasim/deeppy,deepesch/deeppy,andersbll/deeppy,andersbll/deeppy_experimental