Question 1

library(readr)
HR_comma_sep <- read_csv("~/Downloads/HR_comma_sep.csv")
## Rows: 14999 Columns: 10
## ── Column specification ────────────────────────────────────────────────────────
## Delimiter: ","
## chr (2): Department, salary
## dbl (8): satisfaction_level, last_evaluation, number_project, average_montly...
## 
## ℹ Use `spec()` to retrieve the full column specification for this data.
## ℹ Specify the column types or set `show_col_types = FALSE` to quiet this message.

Question 2

  • satisfaction_level: continuous variable, and numeric data type
  • number_project: discrete variable, numeric data type (should be integer)
  • work_accident: binary variable, numeric data type (Should be logical OR integer)
  • salary: ordinal variable, character data type (should be ordinal factor)
  • last_evaluation: continuous variable, numeric data type
  • average_monthly_hours: discrete variable, numeric data type (should be integer)
  • time_spend_company: discrete variable, numeric data type (should be integer)
  • left: binary variable, numeric data type (should be integer OR logical)
  • promotion_last_5_years: binary variable, numeric data type (should be integer OR logical)
  • department: ordinal variable, character data type (should be ordinal factor)