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데이터 전처리 2024.05.23해당카페글 미리보기
cust.head() # null값 -> 15로 변경 cust=cust.fillna(15) # null값 -> 다음행 값으로 변경 cust=cust.fillna(method='backfill') # null값 -> 이전행 값으로 변경 cust=cust.fillna(method='ffill') # 'age'칼럼 null값 -> 평균값으로 변경 cust['age...
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24-04 Understanding Your Body(자신의 몸 이해하기) 2024.02.01해당카페글 미리보기
of me just after I fell off. The ladder building the ablution block here. And since that time there's been lots of backfill. To actually to make, you know, the front corner of that building. It doesn't look as high as it used to because...
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Cathodic protection Part1. 2023.10.28해당카페글 미리보기
a structure by galvanic action NOTE Previously termed “galvanic anode” or “reactive anode”. 1.2.2.5 anode backfill a low-resistance moisture-retaining material immediately surrounding a buried anode for the purpose of decreasing the...
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폴란드와 슬로바키아, 우크라이나에 MiG-29 지원 2023.03.20해당카페글 미리보기
it had an agreement in place to send its MiG-29 fleets to Ukraine with the US sending older F-16 fighters as Polish backfill. However, that announcement was met with confusion in Washington where no such agreement had been reached, and...
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Joe Biden makes surprise visit to 2023.02.20해당카페글 미리보기
week his government "would announce additional sanctions against elites and companies that are trying to evade or backfill Russia’s war machine." Biden is set to visit Poland later this week as he marks the anniversary of Russia's...