Factor summary
As any good bond investor would do, you would like to keep track of how many bonds you are holding of each credit rating. A way to present a table of the counts of each bond credit rating would be great! Luckily for you, the summary() function for factors can help you with that.
The character vector credit_rating and the factor credit_factor are both in your workspace.
Questo esercizio fa parte del corso
Introduction to R for Finance
Istruzioni dell'esercizio
- First call
summary()oncredit_rating. Does this seem useful? - Now try
summary()again, but this time oncredit_factor.
Esercizio pratico interattivo
Prova a risolvere questo esercizio completando il codice di esempio.
# Summarize the character vector, credit_rating
# Summarize the factor, credit_factor