<ul><li>Running Pine Script on live charts can lead to costly mistakes such as repainted signals, missed entries, and erroneous trades.</li><li>The article highlights 5 common Pine Script mistakes and provides solutions to fix them.</li><li>One of the mistakes is using the close price for generating signals, which can result in false buy/sell signals. The fix is to use hl2 (average of high and low) or bar_index for more accurate signals.</li><li>Another mistake is lookahead bias, where the script relies on future data during backtesting. The fix is to use bar_index carefully and reference previous bars to avoid this issue.</li></ul>

5 Pine Script Mistakes That Are Costing You Money (And How to Fix Them)

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