In R language, you can convert numerical values to dates using the function as.Date(). The syntax of this function is as follows:

Convert x to a date format, using “1970-01-01” as the reference point.

Parameter description:

1. x: numeric value that needs to be converted into a date.
2. origin: the default starting value for dates is “1970-01-01”.

Here are a few examples:

Convert the numerical value into a date.

Create a variable named “x” with a value of 18628, convert it to a date object using the origin of “1899-12-30”, and then print the date.

Output: [1] “2021-01-01”

You can specify the output date format using the format() function.

Create a variable called formatted_date and set it to the date in the format of “year-month-day”. Then print out the formatted date.

Output: [1] “2021-01-01”