readxl (1)

R 数据导入入门

Filip Schouwenaars

Instructor, DataCamp

Microsoft Excel

常用数据分析工具
许多 R 包可与 Excel 交互
readxl - Hadley Wickham

Excel 数据的典型结构

多个工作表，表格数据

Screen Shot 2019-07-15 at 3.27.34 PM.png

readxl

excel_sheets()
- 列出各工作表
read_excel()
- 实际导入数据到 R

install.packages("readxl")
library(readxl)

excel_sheets()

dir()

"cities.xlsx"  "the_rest_is_secret.txt"

excel_sheets("cities.xlsx")

"year_1990" "year_2000"

read_excel()

read_excel("cities.xlsx")

# A tibble: 4 × 2
    Capital Population
      <chr>      <dbl>
1  New York   16044000
2    Berlin    3433695
3    Madrid    3010492
4 Stockholm    1683713

read_excel("cities.xlsx", sheet = 2)
read_excel("cities.xlsx", sheet = "year_2000")

# A tibble: 4 × 2
    Capital Population
      <chr>      <dbl>
1  New York   17800000
2    Berlin    3382169
3    Madrid    2938723
4 Stockholm    1942362

开始练习吧！

R 数据导入入门