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多分これが一番早いと思います
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Susisu
February 07, 2016
Programming
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多分これが一番早いと思います
JavaScript でデータ加工・統計コマンドを書いた話
http://connpass.com/event/25197/
Susisu
February 07, 2016
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Transcript
ガチソツケン たくさんਐをग़せ!
None
ͨ ͘ ͞ Μ σ ʔ λ ͕ ग़ Δ
Ճ ɾ ౷ ܭ ϓ ϩ ά ϥϜ Λ
ຖ ճ ॻ ͖ ͨ ͘ ͳ ͍
ϑ Ν Πϧ ͷ ಡ Έ ࠐ Έ σ ʔ
λ ͷ ύʔε ͳ Μͯ ઈ ର ʹ ॻ ͖ ͨ ͘ ͳ ͍
ߦ ͝ ͱ ͷ ܭ ࢉ ↓ a w k
$ awk '{print 2*$1+$2}' foo.dat
૯ ฏ ۉ ࢄ ૬ ؔ
e t c .
$ awk '{sum+=$1}END{print sum}' foo.dat
$ awk '{sum1+=$1;sumSq1+=$1*$1;sum2+= $2;sumSq2+=$2*$2}END{print sum1/NR, sqrt((sumSq1-sum1*sum1/NR)/(NR-1)), sum2/NR,sqrt((sumSq2-sum2*sum2/NR)/ (NR-1))}' foo.dat
a w k w a rd
None
s u m $ 1
$ npm install -g @susisu/est
ߦ ͝ ͱ ͷ ܭ ࢉ + ྻ ͝ ͱ
ͷ ܭ ࢉ ↓ e s t
$ est 'sum $1' foo.dat
$ est '2*$1+$2' foo.dat
$ est -t '[avg $1,stddev $1, avg $2,stddev $2]' foo.dat
▪ ෳͷσʔλϑΝΠϧͷಡΈࠐΈ ▪ ࣜͷ࠷దԽʢࣗಈϝϞԽʣ ▪ JavaScript ʹΑΔػೳ֦ு
໐ ͔ ͵ ͳ Β ࡞ ͬͯ ͠ ·
͑ ΄ ͱ ͱ ͗ ͢ 2 0 1 6 2 ݄ 7 ୈ 3 ճ O U C C LT ձ @ s u s i s u 2 4 1 3 ϝΧ
ଟ ͜ Ε ͕ Ұ ൪ ૣ ͍
ͱ ࢥ ͍ · ͢ 2 0 1 6 2 ݄ 7 ୈ 3 ճ O U C C LT ձ @ s u s i s u 2 4 1 3