How to generate random function with respect to time ??

How to generate random function with respect to time knowing that the magnitude limit and time duration is predefined ????

[Michael Haderlein]

What do you mean with random function with respect to time?

Answer 1

[Thomas Koelen]

clc
clear all
close all
sf=50;
time=60;
mag=1;
S=zeros(1,sf*time);
for iT=1:length(S)
S(iT)=-mag+2*rand*mag;
end

where sf is your sample frequency, time is your time, and mag is your magnitude. S is the signal.

[Moataz Mohsen]

I want for example to generate random Power magnitudes for 2 hours time duration. So I can get at time equal 4 min. and 30 second the power is equal 50 Watt (for example)...........Is this work ?? and what is iT referring to ???

[Thomas Koelen]

so you change your time to 7200, your mag to 50. you might want to change mag+2*rand*mag to just rand*mag since you are talking about power. if you want to look what the power was at that time you simply do: S(4.5*60).

Answer 2

[Mahdiyar]

There are many random function that you may use, such as randperm, randi and so on. Can you explore more what you want to implement?

[Moataz Mohsen]

I want for example to generate random Power magnitudes for 2 hours time duration. So I can get at time equal 4 min. and 30 second the power is equal 50 Watt (for example)