Biitfinex BTC Longs-Shorts

// version 1.0 alerts of 4 types just testing things out

//@version=3

study("Biitfinex BTC Longs-Shorts")

shorts = pow(security("BITFINEX:BTCUSDSHORTS", period, close),1.0)
plot(shorts, title='Bitfinex Shorts', color=red)

longs = pow(security("BITFINEX:BTCUSDLONGS", period, close),1.0)
plot(longs, title='Bitfinex Longs', color=green)

dif=longs+shorts // calculate difference
plot(dif, color=black, title="Difference") // plot difference