explanation of the matlab code

for j=0:8

if(decision==j)

rentedforVector(count, j+1) = 1;

else

rentedforVector(count, j+1) = 0;

end

prevmov= mov;

end

please explain this slice of code?

Answer 1

[Walter Roberson]

Equivalent code:

rentedforVector(count, 1:9) = decision == (0:8);

With no for loop.

If decision is 0 then the first column is set to 1. If decision is 1 then set the second column to 1, and so on.

In the special case that the array already exists and is already the correct size and is already initialized to 0, and decision is in the range 0 to 8,then you can simplify to

rentedforVector(count, decision+1) = 1;

Answer 2

[siva sreedhar]

clc;

clear all;

b=input('Enter Quantization Interval:: ');

t = 0:0.0005:10;

% Representation of the Message Signal

x = sin(t);

subplot(3,1,1);

plot(t,x,'black');

title('Message Signal');

xlabel('Time(s) ---->')

ylabel('Amplitude(V) ---->')

legend('Message Signal ---->');

grid on

% Representation of the Quantized Signal

partition = -1:0.1:b;

codebook = -1:0.1:(b+0.1);

[index,quants] = quantiz(x,partition,codebook);

subplot(3,1,2);

plot(t,quants);

title('Quantized Signal');

xlabel('Samples ---->')

ylabel('Amplitude(V) ---->')

legend('Quantized Signal ---->');

grid on

% Representation of the PCM Signal

y = uencode(quants,3);

subplot(3,1,3);

plot(t,y,'red');

title('PCM Signal');

xlabel('Samples ---->');

ylabel('Amplitude(V) ---->')

legend('PCM Signal ---->');

grid on

% Add title to the Overall Plot

ha = axes ('Position',[0 0 1 1],'Xlim',[0 1],'Ylim',[0 1],'Box','off','Visible','off','Units','normalized', 'clipping' , 'off');

text (0.5, 1,'\bf Pulse Code Modulation ','HorizontalAlignment','center','VerticalAlignment', 'top')

[Walter Roberson]

This does not appear to answer the question created by Waseem?