Taking the logarithm of all matrix data

1.  Open a Matrix editor window with the matrix of your choice (Opening matrices).

2.  In the Matrix editor window toolbar, click the  Apply natural logarithm symbol.

Note: If the matrix data selected contain any negative values or null, the function is cancelled.

Tip: Alternatively, from the Matrix editor menu, choose Arithmetic operations > Apply natural logarithm.

For each OD pair, the natural logarithm of the matrix value is taken to the base e (Eulerian number, e ≈ 2.71828183) and stored in the matrix.