R: Importing Excel Files

To work with Excel files in R, you can use the readxl library

install.packages(“readxl”)

Use the read_excel() function to read and Excel workbook

> library(readxl)
>
> ## read excel file
> df1 <- read_excel("r_excel.xlsx")
> head(df1)
# A tibble: 6 x 4
  Name   Job              Hours Complete
  <chr>  <chr>            <dbl> <chr>  
1 Sally  Predictive Model    1. n      
2 Philip Maintanence        10. n      
3 Tom    Ad-hoc Report      12. y      
4 Bob    SSRS                3. y      
5 Philip Tableau             7. n      
6 Tom    Tableau             9. n

By default, read_excel() reads only the first sheet in the Excel file. To read other sheets using the sheet key word.

> ## read  sheet 2
> df2 <- read_excel("r_excel.xlsx", sheet =2)
> head(df2)

# A tibble: 6 x 2
  Animal Num_Legs
  <chr>     <dbl>
1 Dog          4.
2 Duck         2.
3 Snake        0.
4 Horse        4.
5 Spider       8.
6 Human        2.

The next example, we are reading range B2 – C6 on sheet 1 (same as Excel’s range function)

> ## read sheet 1, range B2 - C6
> df3 <- read_excel("r_excel.xlsx", sheet =1, range = "B2:C6")
> df3
# A tibble: 4 x 2
  `Predictive Model`   `1`
  <chr>              <dbl>
1 Maintanence          10.
2 Ad-hoc Report        12.
3 SSRS                  3.
4 Tableau               7.

In this last example, we are importing only the first 4 rows on sheet 2

> ## read sheet 2, first 4 rows only
> df4 <- read_excel("r_excel.xlsx", sheet = 2, n_max = 4)
> df4
# A tibble: 4 x 2
  Animal Num_Legs
  <chr>     <dbl>
1 Dog          4.
2 Duck         2.
3 Snake        0.
4 Horse        4.
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