Adding month values to datetime function

If I have a datetime value of today, can I add 3 or 6 months to that value without splitting the date into 3 separate arrays (dd, MM, yyyy)?

Answer 1

[Andrei Bobrov]

out = datetime('now') + calmonths([3,6])

before R2014b

out = addtodate(now ,[3,6],'month')

[Jay]

Hi Andrei,

I tried using the datetime command before writing this question had an error come up ( I can't remember what the error stated).

All though I have the 2016 version I would like to use the addtodate command as it is more intuitive (for me atleast).

When I have the command

CalWin = addtodate('now', 3, 'month')

I have the following error returned

Date number must be a numeric scalar.

I have used the 'addtodate' help on function ( fx)in the toolstrip.

When I use addtodate(now ,[3,6],'month') I still get the same scalar error.

[Andrei Bobrov]

use now instead of 'now'

CalWin = addtodate(now, 3, 'month')

For Quantity in vector with arrayfun

out = arrayfun(@(x)addtodate(now,x,'month'),[3,6])

[Jay]

Using

CalWin = addtodate(now, 3, 'month')

I get an output of

   CalWin = 7.3657e+05

as a double.

Do I need to specify the format or do something else to add 3 months onto the current date?

If I want to use another specified date (ObsDate) other than the current date. The addtodate does not work in its current command form using a values name but only now.

Is it possible to use another value specified with a name rather than now ?

[Andrei Bobrov]

Yes, if your date(ObsDate) - scalar serial date number (read doc about addtodate)

[Andrei Bobrov]

if ObsDate and Q - array example:

ObsDate = [2016 5 29;2016 6 14];
Q = [3 4 15];

D = datenum(ObsDate);
a = bsxfun(@(x,y)addtodate(x,y,'month'),D(:),Q(:)');
out = arrayfun(@datestr,a,'un',0)

Answer 2

[Jay]

Never mind I figured out what was wrong.

CalWin = datenum(ObsDate)
CalWin = addtodate(CalWin, 3, 'month')
datestr(CalWin)