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Scala Project - Churn Emails - Find Average Spam Confidence

In the previous exercise, we saw a couple of examples of startswith. Let's do one more hands-on with startswith. Here we will split a line and calculate an average based on the second element from the line based on certain conditions.

You can split a line using the split function as follows:

splittedContent = stringToSplit.split(" ")

INSTRUCTIONS

Define a function average_spam_confidence which calculates the average spam confidence and returns it
Open the file mbox-short.txt which is located at /cxldata/datasets/project/mbox-short.txt
Loop through the file handle
Select only those lines starts with X-DSPAM-Confidence:
Split the lines at : and take the string value which is spam confidence
Convert that string value into float
Find the average of this spam confidence in the entire file and return it
Finally print the average spam confidence by calling the function from a new cell.

Note: If your logic is correct then the correct spam confidence score should be 0.7507186.

See Answer

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Scala Project - Churn Email Inbox with Scala

Scala Project - Churn Emails - Find Average Spam Confidence

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