1. 定義分析變量(1)讀入分析數(shù)據(jù)庫Rtest—data.csv,并定義為名為fxdeath0的數(shù)據(jù)庫。.fxdeath0<-read.csv ("Rtest-data.csv",header=TRUE,sep=’,’)(2)定義分析變量,并形成分析數(shù)據(jù)庫,取名為fxdeath。.fxdeath=mutate (fxdeath0,t=1:length(date),dow=wday(date),no21ag1=L (共 14714 字) [閱讀本文] >>