Trend Score indicator by Tushar S. Chande was described in the article "Rating Trend Strength" in S&C magazine (September 1993).
It displays both the power and direction of a trend.
There are five inputs:
Price method - applied prices
Open/Close - current Open and Close
Close/Close - past and current Close
Period method - use the range in calculation
Use period
Do not use period
Overbought - overbought level
Oversold - oversold level
Fig. 1. Period method = Use period
Fig. 2. Period method = Do not use period