• Technical Studies Reference
• Common Study Inputs (Opens a new page)
• Using Studies (Opens a new page)

This study calculates and displays the Difference of two study Subgraphs.

The study Subgraphs can be part of different studies on the chart, including the Add Additional Symbol study, or any of the main price graph Subgraphs. So it is possible to calculate the difference between the main price graph and the Add Additional Symbol study.

Let \(X^{(1)}\) and \(X^{(2)}\) be random variables respectively denoting the Input Study 1 and Input Study 2 Inputs, and let \(X^{(1)}_t\) and \(X^{(2)}_t\) be their respective values at Index \(t\). Let the Input Study 2 Subgraph Offset be denoted as \(k\).

If \(k = 0\), then the displayed value of Study Subgraphs Subtract at Index \(t\) is given by \(X^{(1)}_t - X^{(2)}_t\). If \(k \neq 0\), then the displayed value of Study Subgraphs Subtract is given by \(X^{(1)}_t - X^{(2)}_0\) for \(t \leq k\), and \(X^{(1)}_t - X^{(2)}_{t - k}\) for \(t > k\).

If the Draw Zeros Input is set to No, then Study Subgraphs Subtract is not drawn at Index \(t\) if its value is zero. Otherwise, it is drawn at Index \(t\) even if its value is zero.

If the Perform Subtract With Zero Values Input is set to No, then the value of Study Subgraphs Subtract is replaced with \(0\) at Index \(t\) if either term in the difference is zero. Otherwise, the two terms are subtracted even if either of them is zero.