MATLAB: How to generate a date vactor of weekly intervals.

Question

Hello,

How can I generate a date vactor in which I know the start date let say end of last month (03/31/2012) and I know the frequency say weekly and I know how many rows I want let say 100 rows.

Answer 1

Start by defining the beginning of the vector using datenum:

start = datenum(2012, 3, 31, 0, 0, 0)

Next, use datenum again to define the interval of 7 days:

offset = datenum(0, 0, 7, 0, 0, 0);

Finally, make a 100-element vector by multiplying the numbers 0 through 99 by the offset and adding them to the start date:

vec = start + (0:99)*offset;

You can verify the results by converting the serial date numbers in vec back to strings:

datestr(vec)