The R-Squared indicator is a popular and useful tool for Forex traders. It is a free indicator available for the MT4 platform and is used to measure the strength of a trend. The R-Squared indicator helps traders to identify when a trend is strong and when it is weak. It is an important tool for traders to determine the strength of a trend and to make informed decisions when entering and exiting the market. The R-Squared indicator is an important tool for Forex traders and can be used to help make informed trading decisions.