I have a data set with two columns, house prices and the date (and time) of sale, although the time is 00:00 for all of them. The date column has the format of YYYY-MM-DD 00:00.
I want to remove the time from the column so that the column is left with just the date which I can then sort in an order and plot on a graph.
If your date is in the format you specified you can simply use as.Date()
like so:
b = '2018-09-20 12:30'
a = as.Date(b)