R - how to transform days in years R

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how to transform days in years R

The lubridate package contains a built-in function, time_length, which can help perform this task.

time_length(difftime(as.Date("2003-04-05"), as.Date("2001-01-01")), "years")
[1] 2.257534

time_length(difftime(as.Date("2017-03-01"), as.Date("2012-03-01")),"years")
[1] 5.00274

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