Comparing frequency & recency

Now that you've created frequency and recency features, let's compare them between the legitimate transactions and the fraudulent ones. The dataset transfers contains 222 transactions from 4 accounts. The frequency features freq_channel and freq_auth, and the recency features rec_channel and rec_auth have been added as columns to the dataset.

Bu egzersiz

Fraud Detection in R

kursunun bir parçasıdır

Kursu Görüntüle

Egzersiz talimatları

Have a look at dataset transfers in the console using functions like head and str.
Get a summary of the frequency and recency channels for legitimate transactions.
Get a summary of the frequency and recency channels for fraudulent transactions.

Uygulamalı interaktif egzersiz

Bu örnek kodu tamamlayarak bu egzersizi bitirin.

library(dplyr)

# Statistics of frequency & recency features of legitimate transactions:
summary(transfers %>% filter(___) %>% select(___, ___, ___, ___))

# Statistics of frequency & recency features of fraudulent transactions:
summary(transfers %>% filter(___) %>% select(___, ___, ___, ___))

Kodu Düzenle ve Çalıştır