Main idea:

It simply iterates through all combinations of pairs and adds difference between open and close in percent.

Parameters:

• List of currencies - what currencies will be calculated (maximum is 8)
• Calculation type - from which data will be strength calculated
• Calculation data input - used as input related to calculation type
• Symbol suffix - used in case of suffix on symbols, e.g: when your symbols look like EURUSDm, EURUSDmicro etc. (suffix is "m", "micro")
• Colors of each line

Calculation type:

From which source are open and close prices taken.

• RAW - raw data
• MA - simple moving average with period taken from "Calculation data"