Hi,

I have an indicator A that on the graph that has a value of 1 or 0. 

Starting from the first bar onward,

I want to code an indicator D that plots 1 when A=1, however filters out when A=1 the next 20 days and resets, so after 20 days, when A=1, D=1 again, and then filter another 20days and so forth. My code looks like this

'# Youx = chart.YouxiaoguodingA   (this is indicator A)

Dim TempA as single

Dim D as integer

Dim C as integer

Dim i as integer

TempA = Youx.value

D =0

C=0

i=0

While true

if tempA = 1

D=1

while c<20

i = i-1

c=c+1

D=0

end while

else

i= i-1

end if

tempA = Youx.value(i)

end while

Plot = D

However this code freezes the software and won't load results. 

Is it because I didn't start from the first bar in this code? or what problems is it? 

Or what coding can achieve my goal? 

Thank you.