The Price to Earnings (P/E) ratio, a key valuation measure, is calculated by dividing the stock's most recent closing price by the sum of the diluted earnings per share from continuing operations for ...

上面代码生成的数据可能跟原始数据匹配得很好，但是却缺少变化，覆盖不到生产环境可能出现的一些组合。有几种办法可以调节真实度和约束程度。可以换个比随机森林更强或更弱的模型来生成预测，或者调它的超参数。比如随机森林可以调树的最大深度 (max depth) ...

George Wendt was a child of Beverly, that tightly-knit, leafy neighborhood on the South Side where he was celebrated Sunday. He was also a product of Old Town, that equally lovely but more frenetic ...