how to plot the signal with timesteps

i have a signal value, of dimension 400 x 1.... how to plot the signal with timesteps of 7 microseconds....

Answer 1

[KSSV]

N = 400 ;
signal = rand(N,1) ;  % a random signal 
dt = 10^-6 ;  % time step 
t = zeros(N,1) ;  % initilaize time 
t(1) = 0 ;   % intial time = 0 
% generate time 
for i = 2:N
    t(i) = t(i-1)+dt ;
end
plot(t,signal)