Create a time vector

Hey guys, thanks in advance

I have a program that reads samples from hardware, and counts the time it takes to read that samples, so I have two variables of time in val2( the first time is the time it starts receiving, and the final time in val2 is the time it stops receiving).

I want to creat a time array in format :

Format = 'hh:mm:ss.SSS';

fs=10e6; % Frequency sampling of receiving the samples

And I want that this array is: first time: 1/fs : end time, basiccaly the values between the vector, should have the time dependent on the frequency sampling.

val2=['17-10-58_086'
    '17-11-09_923'];

Answer 1

[Fangjun Jiang]

My answer to your previous question is the answer. Just change seconds(1) to seconds(1/fs)

https://www.mathworks.com/matlabcentral/answers/1751395-create-a-time-array

[Miguel Albuquerque]

That code, gives me a vector in datetime, how Can I pass it to number?

[Fangjun Jiang]

datenum(TimeVector)

[Miguel Albuquerque]

Im doing this

RS_time=datenum(RS_time,'HH:MM:SS');

But it gives this error:

RS_time is the time vector= 1 x 1367 datetime

Error using datetime/datenum
Too many input arguments.

[Fangjun Jiang]

RS_time=datenum(RS_time)

[Steven Lord]

You don't need to use datenum here. Note that the last line of code in the answer I posted in the thread linked above returns the number of seconds between the two times as a double array. If you want the number of minutes, hours, or days just replace seconds in that code with the appropriate one of those functions.

[Miguel Albuquerque]

I have this vector in appendix, that starts with the first time: 1/fs: last time. But htis vector is in datetime and I needed it in number, but with this format ('HH-mm-ss_SSS'),

Can I do this, thanks