From: roger on
On Nov 4, 10:49 am, "milan " <milanli...(a)gmail.com> wrote:
> i have to plot a value against time & the time,the format of time is hr/min/sec/millisecond or hr:min:sec:millisecond.for eg: i have to plot a variable who's value changes with time,time is given as 15:45:12:.0078.so how i'll plot it in mat lab .

see the help for the DATENUM function