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SQLで正規分布の乱数生成 #51

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takegue opened this issue Nov 26, 2022 · 0 comments

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takegue commented Nov 26, 2022

  select 
    -- normal distribution: box-muller
    sqrt(-2 * ln(rand())) * cos(rand() * 4 * atan(1.0)) as r
  from
    unnest(generate_array(1, 10000)) as v

takegue added BigQuery blog labels

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