Support and resistance indicator script

Open pine editor and paste below script and click on add to chart.

//@version=4
study(“Support and resistance by Koli”, overlay=true)

closebarcrnt = close
lowbarprevious = low[1]

highbarprevious = high[1]

redtwocandle = closebarcrnt <= lowbarprevious
greentwocandle = closebarcrnt >= highbarprevious

vol1 = volume[1]
vol0 = volume

highvol = vol0 > vol1

redtwocandlewithvolume = redtwocandle and highvol
greentwocandlewithvolume = greentwocandle and highvol

plotshape(redtwocandlewithvolume, style=shape.triangledown, location=location.abovebar, color=color.red, size=size.tiny)

plotshape(greentwocandlewithvolume, style=shape.triangleup, location=location.belowbar, color=color.green, size=size.tiny)