Last 4-Hour High and Low

一昨日

//version=5
indicator("Last 4-Hour High and Low", overlay=true)

// Get the high and low values for the last 4 hours (240 minutes)
high_4h = request.security(syminfo.tickerid, "240", high)
low_4h = request.security(syminfo.tickerid, "240", low)

// Plot the high and low values for the last 4 hours
plot(high_4h, color=color.green, linewidth=2, title="Last 4-Hour High")
plot(low_4h, color=color.red, linewidth=2, title="Last 4-Hour Low")