nothing stupifjlbklv

study(title="KRACH", shorttitle="KRACH")

src = close, len = input(6, minval=1, title="Length")
up = rma(max(change(src), 0), len)
down = rma(-min(change(src), 0), len)
rsi = down == 0 ? 100 : up == 0 ? 0 : 100 - (100 / (1 + up / down))
plot(rsi, color=purple)
band1 = hline(70)
band0 = hline(30)
fill(band1, band0, color=purple, transp=90)

src1 = close, len1 = input(9, minval=1, title="Length")
up1 = rma(max(change(src1), 0), len1)
down1 = rma(-min(change(src1), 0), len1)
rsi1 = down1 == 0 ? 100 : up == 0 ? 0 : 100 - (100 / (1 + up1 / down1))
plot(rsi1, color=red)
band11 = hline(70)
band01 = hline(30)
fill(band1, band0, color=purple, transp=90)



src23 = close, len23 = input(18, minval=1, title="Length")
up23 = rsi(max(change(src23), 0), len23)
down23 = rsi(-min(change(src23), 0), len23)
rsi23 = down23 == 0 ? 100 : up == 0 ? 0 : 100 - (100 / (1 + up23 / down23))
plot(rsi23, color= orange)
band123 = hline(70)
band023 = hline(30)
fill(band1, band0, color=yellow, transp=90)