一个关于相对强弱的指标

cw123en

通达信第1个代码
============================
RS1:=CLOSE/INDEXC;
RSA:= REF(RS1,51)+REF(RS1,50)+REF(RS1,49)+REF(RS1,48)+REF(RS1,47)+REF(RS1,46)+REF(RS1,45)+REF(RS1,44)+REF(RS1,43)+REF(RS1,42)+REF(RS1,41)+REF(RS1,40)+REF(RS1,39)+REF(RS1,38)+REF(RS1,37)+REF(RS1,36)+REF(RS1,35)+REF(RS1,34)+REF(RS1,33)+REF(RS1,32)+REF(RS1,31)+REF(RS1,30)+REF(RS1,29)+REF(RS1,28)+REF(RS1,27)+ REF(RS1,26);
RSB:= REF(RS1,25)+REF(RS1,24)+REF(RS1,23)+REF(RS1,22)+REF(RS1,21)+REF(RS1,20)+REF(RS1,19)+REF(RS1,18)+REF(RS1,17)+REF(RS1,16)+REF(RS1,15)+REF(RS1,14)+REF(RS1,13)+REF(RS1,12)+REF(RS1,11)+REF(RS1,10)+REF(RS1,9)+REF(RS1,8)+REF(RS1,7)+REF(RS1,6)+REF(RS1,5)+REF(RS1,4)+REF(RS1,3)+REF(RS1,2)+REF(RS1,1)+RS1;
RSS:=(RSA+RSB)/52;
RS:((RS1/RSS)-1)*10;
RS2:((RS1/RSS)-1)*10,COLORSTICK;

通达信第2个代码
=======================

RS1:=CLOSE/INDEXC;
RSS:=SUM(RS1,N)/N;
RSA:((RS1/RSS)-1)*10;
RSB:((RS1/RSS)-1)*10,COLORSTICK;

==============================
基金50ETF通达信截图,第1个代码比第2个代码好：