Principalcomponent analysis的用法和樣例：
例句
- By using principal component analysis, turfs insect communities can be divided into three types.
經主成分分析，草坪昆蟲群落可以分為三個類型。 - Thirdly, taking southern California theme parks cluster as a case, we calculate their niche by principle components analysis utilizing the model.
以美國南加利福尼亞州主題公園群落為研究對象，依據主題公園生態位模型，利用主成分分析法進行生態位測度。
