R.Stat - hayeong @ ウィキ

• Prepare Data
  • csv
  • xls
  • txt
  • sav
• Data Read and Write
  • read.table
  • write.table
  • quote=F
  • row.names=F
  • as.numeric
• Data Check
  • length
  • ncol, nrow
• Data Type
  • NULL / Na / NaN / Inf
  • How to deal Na?
  • As Numeric
• Edit Data
  • edit(x)
  • scale(x)
  • round(x,2)
  • t(x)
  • merge(x)
  • replace
  • order
  • 標準化
• Analysis Data
  • sum(x)
  • mean(x)
  • sd(x)　標準偏差
  • var(x) 分散
  • skew(x)
  • kurt(x)
  • cor(x)
  • cov(x)
• Graph
  • barplot
• Matrix
  • matrix:: 10 × 10
• References
  • 青木 繁伸「R による統計処理」
• Warnings

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