When I want to use instfreq function to acquire average frequency versus time,
eg. [frequency, time]=instfreq(signal,fs);
here if my signal length is 2240 points, and my sample frequency fs is 16Hz, my time interval is always 2.125s, and the length is always 63.
I find that time interval is fixed. I try several format about this function, but I fail to change the time interval.
I wounder if any other methods could help me to acquire feasible time interval in this function?