Parameter = 2
C = close
FilC = ( log( C ) )
eps = 0.0000000001
for i = 1 to barindex do
if c[i]>c*parameter then
BarsSince=barindex-barindex[i]
break
endif
next
semicupperiod = Max( BarsSince, 1 ) + 1
Ptop = highest[Semicupperiod](FilC)
Pbot = lowest[Semicupperiod](FilC)
boxheight = abs( Ptop - Pbot ) / 5
boxlength = Max( round( semicupperiod / 5 ), 1 )
bar = max(1,barindex)
b0 = bar - semicupperiod + 1
b5 = bar
b1 = Min( b0 + boxlength, b5 )
b2 = Min( b1 + boxlength, b5 )
b3 = Min( b2 + boxlength, b5 )
b4 = Min( b3 + boxlength, b5 )
L2 = Pbot + 2 * boxheight
L3 = Pbot + 3 * boxheight
Diff = FilC - FilC[1]
UpSum2 = Summation[2*boxlength]( Max( Diff, 0 ) )
DnSum2 = Summation[2*boxlength]( Max( -Diff, 0 ) )
DSX1 = abs( UpSum2 - DnSum2 ) / ( eps + UpSum2 + DnSum2 ) * 100
UpSum3 = Summation[3*boxlength]( Max( Diff, 0 ) )
DnSum3 = Summation[3*boxlength]( Max( -Diff, 0 ) )
DSX2 = abs( UpSum3 - DnSum3 ) / ( eps + UpSum3 + DnSum3 ) * 100
if(bar>b2) then
test1=summation[bar-b2](FilC>L3)=0
endif
if(bar>b4) then
test2=summation[bar-b4](FilC>L2)=0
endif
isSemicup = ( semicupperiod >= 20 ) AND ( DSX1[ b5 - b2] > 25 ) AND ( DSX2 < 25 ) AND test1 and test2
LIS = isSemicup
screener[lis]
