Shadow Increase Signal

This indicator Calculates the average upper shadow of the previous 200 candles for issuing SELL signals.
And calculates the average lower shadow of the previous 200 candles for issuing BUY signals.

If the upper shadow of the new candle is %1000 greater than the average upper shadow of the previous 200 candles, a SELL signal is issued and a red arrow appears above the candle.
If the lower shadow of the new candle is %1000 greater than the average lower shadow of the previous 200 candles, a BUY signal is issued and a green arrow appears below the candle.