IT-Academy

Tabulky a data frames

Apr 27th, 2018
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  1. # https://1drv.ms/u/s!AlrLrycbTQ1at8d6PsiJSdGbpmmykA
  2.  
  3. summary(DemographicData)
  4. describe(DemographicData)
  5. max(c(-5,6,9,10,18,-3,2))
  6. mean(c(-5,6,9,10,18,-3,2))
  7. sort(c(-5,6,9,10,18,-3,2))
  8. sort(c(-5,6,9,10,18,-3,2),decreasing = TRUE)
  9. length(c(-5,6,9,10,18,-3,2))
  10. length(DemographicData)
  11. length("Karol")
  12. ?cor
  13. head(DemographicData)
  14. head(DemographicData, 3L)
  15. tail(DemographicData, 5L)
  16. DemographicData$`Country Name`
  17. DemographicData$`Internet users`
  18. t(DemographicData$`Country Name`)
  19. DemographicData$`Birth rate`
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