This code snippet demonstrates how to create a fractal-like indicator that depends on the direction of moving averages rather than just price movements. The indicator uses two moving averages and checks their relative positions to determine potential buy or sell signals.

p = 3
a = average[7]
b = average[21]

if a > b then
    test1 = summation[p+1](a>b)=p
    test2 = summation[(p*2)+1](ab)=p+1
    if test1 and test2 then
        drawarrowdown(barindex[2],max(a[2],b[2])) coloured(200,0,0)
        drawvline(barindex) coloured(200,0,0)
    endif
endif

return a, b

Explanation of the Code:

• Initialization: The variable p is set to 3, representing the number of candles before and after a crossover needed to validate the fractal. Two moving averages are calculated: a as a 7-period average and b as a 21-period average.
• Conditional Checks: The code first checks if the shorter moving average (a) is above the longer moving average (b). If true, it performs further checks to confirm a fractal pattern where a remains above b for p periods and then goes below b for p+1 periods.
• Drawing Indicators: If the conditions are met, an upward green arrow and a vertical green line are drawn to indicate a potential buy signal. The position and color of these indicators are specified in the code.
• Opposite Condition: Similarly, if a is below b, the script checks for the opposite fractal pattern and, if found, draws a downward red arrow and a vertical red line to indicate a potential sell signal.
• Output: The function returns the values of the two moving averages, a and b, which can be used for further analysis or display.

This code snippet is a practical example of how to implement custom indicators in ProBuilder, leveraging moving averages and conditional logic to identify specific market conditions.