+ def __matmul__(self, other):
+ "x.__mul__(y) <==> x@y"
+ if self.ismatrix() and isinstance(other, (int, float)):
+ return numpy.asarray(self.__C) * other
+ elif self.ismatrix() and isinstance(other, (list, numpy.matrix, numpy.ndarray, tuple)):
+ if numpy.ravel(other).size == self.shape[1]: # Vecteur
+ return numpy.ravel(self.__C @ numpy.ravel(other))
+ elif numpy.asarray(other).shape[0] == self.shape[1]: # Matrice
+ return numpy.asarray(self.__C) @ numpy.asarray(other)
+ else:
+ raise ValueError("operands could not be broadcast together with shapes %s %s in %s matrix"%(self.shape,numpy.asarray(other).shape,self.__name))
+ elif self.isvector() and isinstance(other, (list, numpy.matrix, numpy.ndarray, tuple)):
+ if numpy.ravel(other).size == self.shape[1]: # Vecteur
+ return numpy.ravel(self.__C) * numpy.ravel(other)
+ elif numpy.asarray(other).shape[0] == self.shape[1]: # Matrice
+ return numpy.ravel(self.__C).reshape((-1,1)) * numpy.asarray(other)
+ else:
+ raise ValueError("operands could not be broadcast together with shapes %s %s in %s matrix"%(self.shape,numpy.ravel(other).shape,self.__name))
+ elif self.isscalar() and isinstance(other,numpy.matrix):
+ return numpy.asarray(self.__C * other)
+ elif self.isscalar() and isinstance(other, (list, numpy.ndarray, tuple)):
+ if len(numpy.asarray(other).shape) == 1 or numpy.asarray(other).shape[1] == 1 or numpy.asarray(other).shape[0] == 1:
+ return self.__C * numpy.ravel(other)
+ else:
+ return self.__C * numpy.asarray(other)
+ elif self.isobject():
+ return self.__C.__matmul__(other)
+ else:
+ raise NotImplementedError("%s covariance matrix __matmul__ method not available for %s type!"%(self.__name,type(other)))
+