都道府県別のデータを扱う機会ってありますよね. 私もとあるサービスの都道府県別データを解析しておりました. $ wc -l location_data/location-*.csv | sort | head 0 location_data/location-8.csv 0 location_data/location-9.csv 12 location_data/location-38.csv 14 location_data/location-36.csv 20 location_data/location-31.csv 26 location_data/location-32.csv 29 location_data/location-16.csv 33 location_data/location-18.csv 48 location_data/location-39.csv 52
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