matlab dateadd

Matlab does not have a specific function called `dateadd`. However, you can achieve the same functionality using the `datetime` function and basic arithmetic operations.

For example, to add 3 days to a given date, you can do the following:

mydate = datetime('2021-01-01');  % replace with your own date
newdate = mydate + days(3);

Similarly, you can subtract days, add or subtract months or years, etc. For example:

newdate = mydate - weeks(2);  % subtract 2 weeks
newdate = mydate + months(6);  % add 6 months
newdate = mydate - years(1);  % subtract 1 year

For more information on working with dates and times in Matlab, see the official documentation: https://www.mathworks.com/help/matlab/datetime.html