readr: read_csv & read_tsv

Pengantar Mengimpor Data di R

Filip Schouwenaars

Instructor, DataCamp

Gambaran umum

  • Sebelumnya: paket utils

  • Paket R khusus

    • readr

    • data.table

Pengantar Mengimpor Data di R

readr

  • Hadley Wickham

  • Cepat, mudah dipakai, konsisten

  • utils: banyak keluaran, lebih lambat

install.packages("readr")
library(readr)
Pengantar Mengimpor Data di R

File CSV

read.csv("states.csv")

         state    capital pop_mill area_sqm
1 South Dakota     Pierre    0.853    77116
2     New York     Albany   19.746    54555
3       Oregon      Salem    3.970    98381
4      Vermont Montpelier    0.627     9616
5       Hawaii   Honolulu    1.420    10931

read_csv("states.csv")

# A tibble: 5 × 4
         state    capital pop_mill area_sqm
         <chr>      <chr>    <dbl>    <int>
1 South Dakota     Pierre    0.853    77116
2     New York     Albany   19.746    54555
3       Oregon      Salem    3.970    98381
4      Vermont Montpelier    0.627     9616
5       Hawaii   Honolulu    1.420    10931
Pengantar Mengimpor Data di R

File TSV

read.delim("states.txt")

         state    capital pop_mill area_sqm
1 South Dakota     Pierre    0.853    77116
2     New York     Albany   19.746    54555
3       Oregon      Salem    3.970    98381
4      Vermont Montpelier    0.627     9616
5       Hawaii   Honolulu    1.420    10931

read_tsv("states.txt")

# A tibble: 5 × 4
         state    capital pop_mill area_sqm
         <chr>      <chr>    <dbl>    <int>
1 South Dakota     Pierre    0.853    77116
2     New York     Albany   19.746    54555
3       Oregon      Salem    3.970    98381
4      Vermont Montpelier    0.627     9616
5       Hawaii   Honolulu    1.420    10931
Pengantar Mengimpor Data di R

Membungkus di utils dan readr

ch_2_1_slides.002.png

Pengantar Mengimpor Data di R

Membungkus di utils dan readr

ch_2_1_slides.003.png

Pengantar Mengimpor Data di R

Ayo berlatih!

Pengantar Mengimpor Data di R

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