def add_prefix(self, prefix):
        self.prefix = prefix
Derivative of the covariance matrix with respect to X.
dataset/ETHPy150Open CiscoDevNet/yang-explorer/server/explorer/utils/dygraph.py/DYModule.add_prefix--crossover with--dataset/ETHPy150Open SheffieldML/GPy/GPy/kern/src/todo/gibbs.py/Gibbs.gradients_X