Opening High Low Lines

This code calculates the maximum and minimum opening prices over a specified length and plots them on the chart. It also draws lines on the opening prices and plots the result. The security() function is used to draw the lines, with the "D" argument specifying that the lines should be drawn on daily bars.

Please note that this code is for illustration purposes only and does not guarantee any profit. It's important to thoroughly backtest and analyze any trading strategy before using it with real money.