[Q] What is Linear(30) that is shown here: https://dotnet.stockindicators.dev

[dehghani-mehdi]

Is that trendline? I could not find any related info in the documentation.

[dehghani-mehdi]

I got it, it's Linear Regression

[DaveSkender]

Yah, it's just an ordinary least-squares linear regression, which is a generated alongside related Slope calculations, and would look like this when plotted.

You can visualize most indicators here: charts.stockindicators.dev