The problem "Subscripted assignment dimension mismatch"?

hi all,

I want to make for loop which count the date and time for each month in one year (2009) To make all of date time values in one column

 Year=2009;
 Month=1:12;

 for i=1:size(Month);

 SD(i) = datenum(Year,Month,1,0,0,0);
 ED(i) = datenum(Year,Month+1,1,0,0,0)-(1/24);
end

But I get this error

Subscripted assignment dimension mismatch.

What does it mean!

thank you for the helping time

Answer 1

[Walter Roberson]

Your Month is a vector. datenum(Year,Month,1,0,0,0) needs to be a vector because Month is a vector. You try to store that vector result into a single location.

[Lilya]

pardon Walter what do you mean by "try to store that vector result into a single location"?

[Stephen23]

@lina se: the indexing that you use ED(i) refers to one element of ED, in particular the i-th element. A date vector has multiple elements. It is not possible to fit multiple numeric elements into one element of a numeric array.

This is covered in the introductory tutorials, which you should consider revising:

http://www.mathworks.com/help/matlab/getting-started-with-matlab.html

[Lilya]

ok thank you

[Walter Roberson]

My guess is you want

SD(i) = datenum(Year,Month(i),1,0,0,0);

and the corresponding change to ED

[Lilya]

Thank you for your response Mr. Walter