Pair Strength CAD

study("Pair Strength EUR CAD USD GBP", precision=3)
fast=input(5)
slow=input(15)

v1=security('EURGBP',period,close)
v2=security('EURCAD',period,close)
v3=security('EURUSD',period,close)
v4=security('GBPCAD',period,close)
v5=security('GBPUSD',period,close)
v6=security('USDCAD',period,close)
EUR=(v1+v2+v3)/3
GBP=((100-v1)+v4+v5)/3
CAD=((100-v2) + (100-v4) + (100-v6)) /3
USD=((100-v3) + (100-v5) +v6)/3
eur=tsi(EUR,fast,slow)
gbp=tsi(GBP,fast,slow)
cad=tsi(CAD,fast,slow)
usd=tsi(USD,fast,slow)
plot(eur,color=fuchsia,title='EUR')
plot(cad,color=aqua,title='CAD', linewidth=3)
plot(usd,color=green,title='USD')
plot(gbp,color=blue,title='GBP')
hline(0,title='midpoint')
hline(0.5,title='overbought')
hline(-0.5,title='oversell')