var 0:= VOL/CLOSE/2；

var 1:= SUM(IF(var 0 & gt； 100 and close & gtREF(CLOSE, 1), VAR0 0,0), 0);

var 2:= SUM(IF(var 0 & gt； 100 and close & ltREF(CLOSE, 1), VAR0 0,0), 0);

var 3:= SUM(IF(var 0 & lt； 100 and close & gtREF(CLOSE, 1), VAR0 0,0), 0);

var 4:= SUM(IF(var 0 & lt； 100 and close & ltREF(CLOSE, 1), VAR0 0,0), 0);

var 5:= var 1+var 2+var 3+var 4；

VAR6:=IF(ISLASTBAR， 100 * VAR 1/VAR5，0)；

VAR7:=IF(ISLASTBAR， 100 * VAR2/VAR5，0)；

VAR8:=IF(ISLASTBAR， 100 * VAR3/VAR5，0)；

VAR9:=IF(ISLASTBAR， 100 * VAR4/VAR5，0)；

Institutional purchase: = var 1, line thickness 9, color 031BFA;

Agency sales: =VAR2, LINETHICK9, COLORFFFF55.

Retail purchase: =VAR3, COLOR5FFFFF

Retail: =VAR4, COLOR55FF55

a787:= BARSSINCE(V & gt； 0)+ 1;

Average price is 787:=SUM(C*V, A787)/SUM(V, a787);

Machine: = filter ((cross (institutional buying, institutional selling) OR (institutional selling =0 and cross (institutional buying,10)) and c/dynainfo (3) >1.001and institutional buying >; Agency sales), 2400);

ZM: machine and c/dynainfo (3) > 0.013 and C>= average price 787 and c> dynainfo (3);