March 2018
Intermediate to advanced
528 pages
13h 2m
Portuguese (Portugal, Brazil)
Content preview from R para Data Science
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228 | Capítulo 12: Fatores com forcats
relig <- gss_cat %>%
group_by( relig ) %>%
summarize(
age = mean( age, na.rm = TRUE ),
tvhours = mean( tvhours, na.rm = TRUE ),
n = n()
)
ggplo
t(
relig
, aes(
tvhours
,
relig
)) + geom_point
()
É difícil interpretar esse gráfico, porque não há um padrão geral. Podemos melhorá-
-lo reordenando os níveis de relig usando fct_reorder(). A fct_reorder() recebe
três argumentos:
• f, o fator cujos níveis você quer modificar.
• x, um vetor numérico que você quer usar para reordenar os níveis.
• Opcionalmente, fun, uma função que é usada se houver múltiplos valores de x
para cada valor de f. O valor ...
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