Util

Library "Util"
defines commonly used utility functions and constants

calc_shares(entry_price, stop, fund, riskPerc)
  Calculate number of shares for a trade
  Parameters:
    entry_price (float)
    stop (float): stop loss price
    fund (float): amount of fund to put in this trade
    riskPerc (float): percentage of fund to be risked in this trade. Default is 5%
  Returns: number of shares

trade_exist(trade_id)
  Returns if a trade with the specific ID is already open
  Parameters:
    trade_id (string)
  Returns: true/false

trade
  Fields:
    id (series string)
    direction (series TradeDir)
    entry_price (series float)
    shares (series float)
    bars_open (series int)