I think there must be a better way to code the following but can´t figure out how. The idea is to check several more days wich would make this code a really mess..

bWidth:= (BBandTop(C,20,S,2)-BBandBot(C,20,S,2));
bWidth4:= (BBandTop(Ref(C,-4),20,S,2)-BBandBot(Ref(C,-4),20,S,2));
bWidth5:= (BBandTop(Ref(C,-5),20,S,2)-BBandBot(Ref(C,-5),20,S,2));
bWidth6:= (BBandTop(Ref(C,-6),20,S,2)-BBandBot(Ref(C,-6),20,S,2));
bolTop:= BBandTop(C,20,S,2);
bolBot:= BBandBot(C,20,S,2);

minBolWidth:= ATR(21)*4;

crossTop:= bWidth >= minBolWidth
AND Cross(C,bolTop);

crossWidth4:= bWidth4 >= minBolWidth
AND Ref(Cross(C,bolBot),-4);

crossWidth5:= bWidth5 >= minBolWidth
AND Ref(Cross(C,bolBot),-5);

crossWidth6:= bWidth6 >= minBolWidth
AND Ref(Cross(C,bolBot),-6);

crossTop AND crossWidth4
OR
crossTop AND crossWidth5
OR
crossTop AND crossWidth6

My idea with this code is to find stocks who has gone from bottom bollingerband to top bollingerband within x days and where bolingerband has a min width at the day the upper bollingerband crosses and also check the min width at the -day where the lower bollingerband crosses for first time since the upper band was crossed.

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Instead of testing for each day back from the day it crosses the upper bollingerband if it has crosses the bottom bollingerband I would like to use a function like ALERT() where I can put x days and scan back x days instead of using a variable for each day like I do now. Another problem with my code now is that if I want to scan 20 days back the system wont allow me to have that many variables.

I cant understand how to monitor the first -day who crosses the lower bollingerband and from there check that days width between upper and lower bollingerband with a simpler method.