Variance
// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © gulls

//@version=5
indicator("Variance")
plot(ta.ema((close-close[1]),60))
hline(0, color=color.new(color.red,50))
hline(1)
hline(2)
hline(3)
hline(-1)
hline(-2)