Machine Learning for hackers讀書筆記(八)PCA：構建股票市場指數

library('ggplot2') prices <- read.csv('G:\\dataguru\\ML_for_Hackers\\ML_for_Hackers-master\\08-PCA\\data\\stock_prices.csv',stringsAsFactors = FALSE) library('lubridate') #把日期列轉成日期對象 prices <- transfo

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