Filters all network elements by the given filter value.
None numerical features are filtered by the given regular expression e.g .*node.* (all values that contain node). Use lower cases for boolean features e.g. true and false.
Numerical features can be filtered using >, >=, <, <= and = concatenated by a & for logical 'AND' or | for logical 'OR' e.g. '> 1.0 & <= 1.5'.