March 2018
Intermediate to advanced
528 pages
13h 2m
Portuguese (Portugal, Brazil)
Content preview from R para Data Science
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8 | Capítulo 1: Visualização de Dados com ggplot2
palavra “valor” para descrever dados, usaremos a palavra “nível” para descrever pro-
priedades estéticas. Aqui nós mudamos os níveis do tamanho, da forma e da cor de
um ponto para torná-lo pequeno, triangular ou cinza:
Você pode transmitir informações sobre seus dados ao mapear a estética em seu gráfico
para as variáveis em seu conjunto de dados. Por exemplo, você pode mapear as cores
de seus pontos para a variável
class para revelar a classe de cada carro:
ggplot( data = mpg ) +
geom_point
( mapping
= aes
( x
=
displ ,
y
=
hwy,
color
=
class ))
7
6
5432
20
30
40
hwy
displ
classe
2 lugares
compac ...
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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.