How to convert a data frame without 'Date' column into time series?

[kndrtt]

Hi there,

I have a data frame that contains 2 columns like "Title" and "Value" and I need to convert it into a time series. That data frame will be renewed with new values and will be exported to a .xlsx file every month.

Is it possible to do something like this? Or at least add additional date column to that data frame?

[technocrat]

For a time series, the date field is unnecessary.

myts <- ts(my_data, start = c(2020,1), frequency = 12)

for monthly data.