This code snippet demonstrates how to calculate the angle of a moving average slope over a specific period using trigonometry in the ProBuilder language. The example focuses on a 200-period moving average and evaluates its slope over the last 10 periods to determine its angle relative to the horizontal.

period = 200
decay = 10
ma = average[Period](close)
ADJASUROPPO = (ma-ma[decay]*pipsize) / decay
ANGLE = (ATAN(ADJASUROPPO))
test = angle >0 and angle <10
screener[test]

Explanation of the Code:

• period = 200 - This line sets the period of the moving average to 200. This means the average is calculated over the last 200 data points.
• decay = 10 - This line sets the decay or the number of periods over which the slope of the moving average is evaluated.
• ma = average[Period](close) - This line calculates the moving average of the closing prices over the specified period (200 periods in this case).
• ADJASUROPPO = (ma-ma[decay]*pipsize) / decay - This line calculates the adjusted slope of the moving average. It subtracts the moving average value 10 periods ago (scaled by 'pipsize') from the current moving average value, then divides by the decay to normalize the slope.
• ANGLE = (ATAN(ADJASUROPPO)) - This line calculates the angle of the slope in radians using the arctangent function, which converts the slope ratio into an angle.
• test = angle >0 and angle <10 - This line defines a condition to test if the angle is between 0 and 10 degrees. This is useful for identifying when the moving average slope is relatively flat but slightly positive.
• screener[test] - This line uses the condition defined in 'test' to filter or screen data points. It effectively selects periods where the moving average's slope angle meets the specified criteria.

This snippet is useful for analyzing trends in data where the angle of the moving average can indicate the direction and strength of the trend.