OPEN-SOURCE SCRIPT

Correlation Heatmap with Relative Strength

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Why the error happened:
In Pine Script, strings are joined using +. My previous draft had a typo that looked like standard1 - "-" + standard2. The compiler saw the minus sign (-) and tried to do math on words, which is like trying to subtract "Apple" from "Banana." Replacing it with standard1 + "-" + standard2 fixes the ticker ID generation.

Would you like me to add a tooltip that explains how to read the Pearson correlation values for anyone who downloads your script?

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