March 2018
Intermediate to advanced
528 pages
13h 2m
Portuguese (Portugal, Brazil)
Content preview from R para Data Science
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CAPÍTULO 12
Fatores com forcats
Introdução
Em R, fatores são usados para trabalhar com variáveis categóricas, que têm um conjunto
fixo e conhecido de valores possíveis. Eles também são úteis quando você quer exibir
vetores de caracteres em ordem não alfabética.
Historicamente, era muito mais fácil trabalhar com fatores do que com caracteres.
Como resultado, muitas das funções no R base convertem automaticamente caracteres
em fatores. Isso significa que fatores normalmente surgem em lugares onde não são
realmente úteis. Felizmente, você não precisa se preocupar com isso no tidyverse, e
pode focar em situações em que os fatores são genuinamente ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.