How get average value of all 15minutes candle within 4 hour candle

Question

There are 16 15minutes candles in 4hour candle. How get average value of all 15minutes candle within a 4 hour candle.

Answer 1

//@version=5
indicator("My script", overlay = true)
lower = request.security_lower_tf(syminfo.tickerid, '15', close)
avg = lower.avg()

if barstate.islast
    label.new(bar_index, high, str.tostring(avg,format.mintick), color=color.aqua)