March 2018
Intermediate to advanced
528 pages
13h 2m
Portuguese (Portugal, Brazil)
Content preview from R para Data Science
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140 | Capítulo 8: Importando Dados com readr
#> 4 1004 x no trailing characters .723450553836301
#> 5 1005 x no trailing characters .614524137461558
#> 6 1006 x no trailing characters .473980569280684
#> # ... with 994 more rows
Uma boa estratégia é trabalhar coluna por coluna até que não haja problema restante.
Aqui podemos ver que há vários problemas de análise com a coluna x — há caracteres
à direita depois do valor inteiro. Isso sugere que precisamos usar um analisador double.
Para corrigir o chamado, comece copiando e colando a especificação de coluna na sua
chamada original:
challenge <- read_csv(
readr_example( "challenge.csv"
),
col_types ...
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