Code Studio: Parse Messy Numbers (readr)

Real data arrives messy. Parsing a Vector shows readr's parse_number(), which pulls the number out of text like "$1,234.50" or "45%".

The program reads several lines of messy values, one per line. Using parse_number():

Convert every line to a number.
Print how many values there are, their total and their mean, the total and mean rounded to 2 decimal places:

Count: 3
Total: 1291.5
Mean: 430.5

What does parse_number() do with the text "about 12 people"? And with a line that has no number at all?

Real data arrives messy. Parsing a Vector shows readr's parse_number(), which pulls the number out of text like "$1,234.50" or "45%".

The program reads several lines of messy values, one per line. Using parse_number():

Convert every line to a number.
Print how many values there are, their total and their mean, the total and mean rounded to 2 decimal places:

Count: 3
Total: 1291.5
Mean: 430.5

What does parse_number() do with the text "about 12 people"? And with a line that has no number at all?

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