{{outline}}

!!!相関と回帰式
!相関係数
 > cor(Type, Token)
 [1] 0.889026



!相関関係の検定
 > cor.test(Type, Token)
 
         Pearson's product-moment correlation
 
 data:  Type and Token
 t = 32.665, df = 283, p-value < 2.2e-16
 alternative hypothesis: true correlation is not equal to 0
 95 percent confidence interval:
  0.8618637 0.9111023
 sample estimates:
     cor 
 0.889026 
!相関関係の散布図と回帰直線（xとyが入れ替わる点に注意）
 > plot(Type, Token)
 > abline(lm(Token ~ Type))