Importing matrix values into Visum matrices

1.  In the Matrices window, in the navigator, right-click the Visum matrix of your choice.

The context menu opens.

2.  Click Open from file.

The Open matrix window opens.

Note: A file name is suggested if the matrix has previously been assigned a name.

3.  Select the desired file.

4.  Click the Open button.

The matrix values are overwritten. The name of the file selected is saved with the matrix.

Tips: Alternatively, you can read values from file into a Visum matrix as follows: Open the Visum matrix and in the tool bar of the Matrix editor window and click the  Read matrix content from file symbol or select menu Matrix editor > Open from file. The Matrices list shortcut menu contains an entry for this (Opening a list).

Note: The number of zones and the zone numbers in the imported matrix do not have to be identical with those in the Visum matrix you selected. Arithmetic operations, however, are only performed on matrix values with identical OD pairs. If the matrices do not have identical OD pairs, the following applies:

  • If the matrix file does not contain an OD pair, the matrix value null is used.
  • Any OD pairs that are not in the Visum file, will not be taken into account.