我有一个投资定价数据的熊猫小组,我想添加两个新的短轴列(投资组合持有和基准持有)。 最初的面板是: <class 'pandas.core.panel.Panel'>
Dimensions: 4 (items) x 463 (major) x 8 (minor)
Items: ListedEquity:BHP Billiton:BHP.AX to SavingsAccount:ING Aust
任何人都可以用一种方法来计算一系列股票交易的内部收益率吗? 假设的场景是: $10,000 of stock #1 purchased 1/1 and sold 1/7 for $11,000 (+10%)
$20,000 of stock #2 purchased 1/1 and sold 1/20 for $21,000 (+5%)
$15,000 of stock #3 purchase