Truth values (Boolean values)

There are two truth values: "True" ("Yes") and "False" ("No"). In parameter dialogs, checkboxes are usually provided for truth values: To set a truth value to "True", select the checkbox; if deactivated, it has the value "False". In MM-Talk formulas, you simply enter the truth values as a character string: Yes (or True) and No (or False).

Numbers also have a truth value: Zero has the truth value "False", all other numbers are "True". In this way, you can also apply a logical operation to a time series (which is known to consist of numerical values).