Combining HR datasets (I)
It is now time to combine datasets from various sources. Here, you will combine employee ratings with org2 using employee id as the lookup key. The rating dataset contains performance rating for the year 2013.
Performance Rating has the following levels:
- Unacceptable
- Below Average
- Acceptable
- Above Average
- Excellent
You can use the left_join() function to join two datasets.
For example, left_join(x, y, by = "z") joins y to x. The second dataset you specify is joined to the first dataset using "z" as the lookup key.
Este exercício faz parte do curso
HR Analytics: Predicting Employee Churn in R
Instruções do exercício
- Use
glimpse()to view the structure of theratingdataset. - Left join
ratingtoorg2using"emp_id"as the lookup key. - Calculate the turnover rate for each
ratinglevel.
Exercício interativo prático
Experimente este exercício completando este código de exemplo.
# View the structure of rating dataset
___
# Complete the code to join rating to org2 dataset
org3 <- ___(org2, ___, by = "emp_id")
# Calculate rating wise turnover rate
df_rating <- org3 %>%
___(rating) %>%
___(turnover_rating = mean(turnover))
# Check the result
df_rating