Check out this new video by Greg Bethardy on CoxPH. See below for CoxPH details.
The CoxPH function is named for the Cox proportional hazards model, a statistical survival model. The function estimates coefficients by learning a set of explanatory variables.
The Cox proportional hazards model, proposed by David Cox in 1972, is a statistical survival model. The purpose of the model is to simultaneously explore the effects of several explanatory variables on survival.