Adding month values to datetime function
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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)?
回答（2 个）
Andrei Bobrov
2016-5-26
编辑：Andrei Bobrov
2016-5-26
out = datetime('now') + calmonths([3,6])
before R2014b
out = addtodate(now ,[3,6],'month')
5 个评论
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
2016-5-27
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])
Andrei Bobrov
2016-5-27
Yes, if your date(ObsDate) - scalar serial date number (read doc about addtodate)
Andrei Bobrov
2016-5-27
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)
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2016-5-27
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