Trade day of week

[helmutw]

Is there a way, to code the Trade Day of Week (TDW) in eSignal?

My idea is to calculate the average trading range (high(0)-low(0)) from the last 10 mondays, tuesdays ...

For example like this

( (high(MondayThisWeek)-low(MondayThisWeek)) + (high(MondayLastWeek)-low(MondayLastWeek )) + (high(MondayTwoWeeksbefore)-low(MondayTwoWeeksbefore)) + ...) /10