Creating a pulse for thermal noise

Hi

How can I start my Y-axis from -174

And not from 0?

*Example drawing

clc,clear
Hz = 10;
Amp = -164;
x = -10:0.01:10;
% a pulse function
f = @(xi,a,b) a*rectpuls(xi,b); 
% plot to 
plot(x,f(x,Amp,Hz),'b--');
title(['Pulse']);
xlabel('Freq');
ylabel('Amplitude');

TNX

Answer 1

[Fangjun Jiang]

clc,clear
Hz = 10;
Amp = 10;
x = -10:0.01:10;
% a pulse function
f = @(xi,a,b) a*rectpuls(xi,b)-174; 
% plot to 
plot(x,f(x,Amp,Hz),'b--');
title(['Pulse']);
xlabel('Freq');
ylabel('Amplitude');

[Shahar ben ezra]

@Fangjun Jiang

tnx:)