Description: Calculate the covariance matrix for a matrix. Syntax: covm(A) Note: The external library function (See Extecovariance, matrix
Description: Fill missing values using the specified constant value. Syntax: A.fillcons(v) Note: The function uses constfill, missing value, vector, matrix
Description: Fill missing values according to the specified method. Syntax: A.fillmthd(m) Note: The function fills missifill, missing value, vector, matrix
Description: Calculate the product of two matrices or vectors. Syntax: mul(A, X) Note: The function calculates the produvector, matrix, multiplication