Elder Ray and the power index in MetaStock for Windows

Elder Ray and the power index in MetaStock for Windows
Please refer to Dr. Elder for interpretation.
Here's the formula for calculating the Elder Ray, and the strength index.
Bull Power: N - Mov (C, 13 E) (high average range from minus)
Bear Power: L - Mov (C, 13 E) (Low minus moving average)
To plot Elder Ray:
• Creating two custom formulas from above.
• Open database security.
• Rental 13 Period Exponential Moving Average closing price of a new inner window.
• Drag the Bear Power formula and drop it into a new inner window.
• Drag the Bull Power formula and drop it into a new inner window.
• Or, you can reject all three indicators in the same inner window if you want.
The formula for strength index is:
This formula requires the presence of the volume of data to work
V * (C-code (C, -1))
To plot this formula as a histogram, by reducing the formula in the inner window, right click on the indicator and select properties. Select styles and choose the histogram.