I have a function which is ranged from 0 microseconds to 50 microseconds. I just want to plot its exact copies from 0to50 microsecond,50 to 100microseconds,100 to 150 and so on

Clc; Clear all; Ts=1/200e6; t=Ts:Ts:0.00005; Y=[ones(1,2000) zeros(1,8000)]; x=sin(1256e6*t + 2198e10*t.^2); z=x.*y; plot(t,z)

[Steven Lord]

Instead of calling plot to show the function, it sounds like you might want a stairstep plot as created by the stairs function.

[Devesh Yadav]

I am not understanding properly.Please wite the code if possible

[Steven Lord]

Take a look at the pictures on the documentation page for the stairs function. If they look like what you want your plots to look like, use those examples as a model for your code.

[Devesh Yadav]

Thanks but, that's not what I was looking for.

Answer 1

[Star Strider]

Try this:

Ts=1/200e6; 
t=Ts:Ts:0.00005; 
y=[ones(1,2000) zeros(1,8000)]; 
x=sin(1256e6*t + 2198e10*t.^2); 
z=x.^y; 
NR = 3;                                                 % Number Of Repeats Desired
z_extended = reshape(repmat(z(:), NR, 1), [], 1).';     % Duplicate & Convert To Vector
t_extended = linspace(Ts, max(t)*NR, numel(t)*NR);      % Time Vector

figure
plot(t,z)

figure
plot(t_extended, z_extended)

Change ‘NR’ to get more copies. Note that ‘NR’ must always be an integer.

[Devesh Yadav]

I want to generate the delayed version of this function(delay by 20 microseconds)

[Star Strider]

Add 2E-5 to ‘t_extended’:

Ts=1/200e6; 
t=Ts:Ts:0.00005; 
y=[ones(1,2000) zeros(1,8000)]; 
x=sin(1256e6*t + 2198e10*t.^2); 
z=x.^y; 
NR = 3;                                                 % Number Of Repeats Desired
z_extended = reshape(repmat(z(:), NR, 1), [], 1).';     % Duplicate & Convert To Vector
t_extended = linspace(Ts, max(t)*NR, numel(t)*NR);      % Time Vector
figure
plot(t,z)
figure
plot(t_extended, z_extended)                            % Plot Original
xlim([0 max(t_extended)])
figure 
plot(t_extended+2E-5, z_extended)                       % Plot Delayed
xlim([0 max(t_extended)])

It is necessary to set xlim to begin at 0 or the delay will not appear in the plot.

[Devesh Yadav]

What should I do to make the value 0[zero(instead of 1) ]where the curve is not repeating

[Star Strider]

Replace the element-wise exponentiation with an element-wise multiplication:

z=x.*y; 

That worked when I tried it.

[Devesh Yadav]

Thank you

[Star Strider]

As always, my pleasure!