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CUIで簡易統計関数

Posted at

実験とかしているとcutとかpasteやった後に平均とか標準偏差とか見たくなりますよね。ってことでRさんの関数をエイリアスで呼び出す。

for f in mean sd max min
do
    alias $f="R --vanilla --slave -e \"x <- scan('stdin', quiet=TRUE); cat($f(x), fill=TRUE)\""
done

こんな感じで使う。

% jot 10 | mean
5.5
% jot 10 | sd
3.02765

便利。ちょっと起動に時間がかかるけど。

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