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ワンライナーで平均と標準偏差を計算する

Last updated at Posted at 2015-12-23

この計算のために、初めてRをインストールした。

コマンド

R -q -e "x <- read.csv(file='filename',header=F); summary(x); sd(x[ , 1])"

実行例

$ seq 1 10 | R -q -e "x <- read.csv(file='stdin',header=F); summary(x); sd(x[ , 1])"
> x <- read.csv(file='stdin',header=F); summary(x); sd(x[ , 1])
       V1       
 Min.   : 1.00  
 1st Qu.: 3.25  
 Median : 5.50  
 Mean   : 5.50  
 3rd Qu.: 7.75  
 Max.   :10.00  
[1] 3.02765
> 
> 

参考文献

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