Unfortunately, Linear Regression calculation based on pine script v4 is unavailable
The code has been removed. However, the huge code base still remains at your disposal allowing you to find a suitable code.
Check out other MetaTrader 5 codes:
WPR for Overbought and Oversold
Overbought and oversold indicators aim to determine where the price may experience a reversal.
ZigZag BOS CHoCH Detection
ZigZag BOS CHoCH Detection indicator is based on the original MetaQuotes ZigZag algorithm and extends it by detecting and marking market structure events. It tracks recent ZigZag swing points and automatically identifies Break of Structure (BOS) and Change of Character (CHoCH) using pivot trend confirmation. BOS and CHoCH levels are drawn directly on the chart with labeled horizontal lines for clearer price action analysis.