# Technical Studies Reference

### Study Angle

This study calculates the angle of a line (Subgraph) from another study on the chart. The angle is calculated based on the change in points of the Input Data over the specified Length.

The Length is a number of bar columns in the chart. The Value Per Point Input is used to set what the value of a Point is. The output is given in degrees, and the range of the output is between 90 and -90, where a positive value means the study Subgraph line is sloping up and a negative value means the study Subgraph line is sloping down.

To use this study, set the Based On setting in the Study Settings window for the Study Angle study to the study that you want to calculate the angle from. After this, set the Input Data Input to the specific study Subgraph name that you want to calculate the angle for.

The Study Angle $$\theta$$ is calculated from the change in points $$C$$ of the Input Data and the Length $$L$$ using the formula $$\theta = \tan^{-1}\left(\frac{180^oC}{2\pi L}\right)$$

#### Inputs

• Input Data
• Length
• Value Per Point: For more information about the Value Per Point Input, see the explanation in the Drawing a Line with a Specific Angle or Slope section on the Tools page.
• Skip Calculation at Start of Trading Day: When this Input is set to Yes , then at the start of the trading day according to the Session Times in the chart, the study angle calculation will not be done at that chart bar and the subsequent chart bars from that bar up to the number of bars specified by the Length Input minus 1.