Intro to Dplyr

Code and Text for Quiz 3

Katie Kuehn
2022-02-14

Load the packages that we need.

library(tidyverse)
library(readxl)
library(here)

Read the data into R.

corp_tax <- read_excel(here("corp_tax.xlsx"))

Let’s look at DISH Network in the corp_tax tibble.

result  <- corp_tax  %>%
  filter(company == "DISH Network")

result

# A tibble: 1 × 5
  company      profit   tax tax_rate industry          
  <chr>         <dbl> <dbl>    <dbl> <chr>             
1 DISH Network  2145.  44.5   0.0207 Telecommunications

DISH Network is in the Telecommunications industry. It had profit of $2145.257 million and tax of $44.451 million. Its tax rate was 2.1%.

Let’s find the company in the Health care industry with the highest profit.

result  <- corp_tax %>%
  filter(industry == "Health care") %>%
  slice_max(profit, n=1)
result

# A tibble: 1 × 5
  company profit   tax tax_rate industry   
  <chr>    <dbl> <dbl>    <dbl> <chr>      
1 Anthem    4990  1128    0.226 Health care

Anthem is the company in the Health care industry with the highest profit. It had profit of $4990 million and tax of $1128 million. Its tax rate was 22.6%.