Check if a matrix is empty
Takes a matrix and asks if it's empty (either 0x0 or 1x1 with a value of NA)
IsMatrixEmpty(x)
| x | A matrix | 
Whether or not x is empty
IsMatrixEmpty(new("matrix"))
IsMatrixEmpty(matrix())
IsMatrixEmpty(matrix(1:3))Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.