XRPBTC long : BTCUSD short

It will be an index using the price delivered by Bitfinex exchanges. It is a very simple indicator, but it is a recommended index for those who want to see XRP while keeping the risk of price fluctuation of BTC down. The code is simple and you can use XRP in the same way by changing it to another alto. There is a big gap in the prices of BTC and XRP, so we adjust the values ​​so that the indicators are easy to see.