​RSI​指标是什么意思？

VAR50:=COST(85);

VAR51:=COST(15);

VAR52:=VAR50-VAR51;

VAR53:=(VAR50+VAR51)/2;

VAR54:=VAR52/VAR53*100<30;

VAR55:=HHV(HIGH,250);

VAR56:=LLV(LOW,250);

VAR57:=VAR55-VAR56;

VAR58:=VAR53-VAR56;

VAR59:=VAR53<VAR57*4+VAR56;

VAR60:=VAR54 AND VAR59;

VAR61:=CLOSE/REF(CLOSE,1)>1.04;

VAR62:=EMA(100*(CLOSE-LLV(LOW,30))/(HHV(HIGH,30)-LLV(LOW,30)),3);

VAR63:=VAR62>=75 AND CLOSE>0 AND CLOSE>OPEN;

筹码强势突破:=VAR63 AND VAR60 AND VAR58 AND WINNER(CLOSE)>=0.9 AND VAR61,COLORMAGENTA;

筹码集中买入:=VAR60 AND VAR46>0 AND CROSS(VAR46,VAR49) AND VAR48 AND WINNER(CLOSE)>=0.9;