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DataFrames and Types with Julia

Kiichi
October 20, 2018

DataFrames and Types with Julia

Presentation at JuliaTokyo #8 https://juliatokyo.connpass.com/event/100780/

Kiichi

October 20, 2018
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Transcript

  1. %BUB'SBNF 4FQBM-FOHUI 4FQBM8JEUI 1FUBM-FOHUI 1FUBM8JEUI 4QFDJFT    

    4FUPTB     4FUPTB     4FUPTB     4FUPTB     4FUPTB     4FUPTB     4FUPTB     4FUPTB ộ *SJT
  2. 2VFSZWFSTF "ONFUBQBDLBHFPGNVMUJQMFQBDLBHFT w %BUB7BMVFT w *UFSBCMF5BCMFT w2VFSZ w 7FHB-JUF w

    'JMF*0 w &YDFM'JMFT w 4UBU'JMFT w $47'JMFT w 'FBUIFS'JMFT w%BUB'SBNFT w %BUB7PZBHFS 
  3. 1. A list 2. With (unique) names 3. Containing vectors

    (including lists!) 4. With equal NROW() 5. Optional row names best avoided — Hadley Wickham at TokyoR “What is a data frame?” 4FQBM-FOHUI 4FQBM8JEUI 1FUBM-FOHUI 1FUBM8JEUI 4QFDJFT     4FUPTB     4FUPTB     4FUPTB     4FUPTB     4FUPTB     4FUPTB     4FUPTB     4FUPTB
  4. 4FQBM-FOHUI 4FQBM8JEUI 1FUBM-FOHUI 1FUBM8JEUI 4QFDJFT     4FUPTB

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  5. 4FQBM-FOHUI 4FQBM8JEUI 1FUBM-FOHUI 1FUBM8JEUI 4QFDJFT     4FUPTB

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  6. FY%BUB'SBNFT 4FQBM-FOHUI 4FQBM8JEUI 1FUBM-FOHUI 1FUBM8JEUI 4QFDJFT    

    4FUPTB     4FUPTB     4FUPTB     4FUPTB     4FUPTB     4FUPTB     4FUPTB     4FUPTB
  7. FY+VMJB%# *OEFYFE5BCMFT 4FQBM-FOHUI 4FQBM8JEUI 1FUBM-FOHUI 1FUBM8JEUI 4QFDJFT   

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  8. 4FQBM-FOHUI 4FQBM8JEUI 1FUBM-FOHUI 1FUBM8JEUI 4QFDJFT     4FUPTB

        4FUPTB     4FUPTB     4FUPTB     4FUPTB     4FUPTB     4FUPTB     4FUPTB