An indicator that only calculates and displays the correlation coefficient with bitfinex:BTCUSD close. By changing the settings, you can calculate any chart and correlation coefficient 0.7 to 1.0 There is a fairly strong positive correlation 0.4 to 0.7 Positive correlation 0.2 to 0.4 with a weak positive correlation －0.2 ～ 0 ～ 0.2 Little correlation -0.4 to -0.2 Weak negative correlation -0.7 to -0.4 Negative correlation -1 to -0.7 Significantly negative correlation