Take note of the line item maximum value PB (i.e. using .describe ( "evaluate ( 'ITM_max', 0)") Get the maximum column) conditions

 

 

dw_1.describe ( "evaluate ( 'ITM_max', 0)"): When using the minimum and maximum values ​​describe complex (or other expression) take the evaluate column, the column must be added to calculate the summary data in the form of the column, and using corresponding expressions,

Otherwise it will prompt: Expression is not valid. The ITM_max ( "evaluate ( 'ITM_max', 0)") dw_1.describe General Name property is property page