An array containing numerical data
OptionalisOptionalisIf defined indicates if the data series is monotonic.
1 means that the data is increasing.
-1 means that the data is decreasing.
0 means that the data is not monotonic.
Long name of the column
OptionalmaxIf defined contain the maximal value of the data
OptionalminIf defined contain the minimal value of the data
OptionalsymbolOne letter that allows to define the variable
OptionalunitsUnit of the data in the column
Describe a variable that can only contains as data an array of number