March 2018
Intermediate to advanced
528 pages
13h 2m
Portuguese (Portugal, Brazil)
Content preview from R para Data Science
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195
CAPÍTULO 11
Strings com stringr
Introdução
Este capítulo apresenta você à manipulação de strings em R. Você aprenderá o básico
sobre como funcionam as strings e como criá-las à mão, mas o foco será em expressões
regulares, ou regexps. Expressões regulares são úteis, porque as strings normalmente
contêm dados desestruturados ou semiestruturados, e regexps são uma linguagem
concisa para descrever padrões em strings. Quando você vir uma regexp pela primeira
vez, achará que um gato andou pelo seu teclado, mas à medida que sua compreensão
melhorar, elas logo começarão a fazer sentido.
Pré-requisitos
Este capítulo focará no pacote stringr para man
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