waterfall plot show error

I have three signals of 4096 time amplitudes in each.

signal1 = channel1(1:4096);
signal2 = channel2(1:4096);
signal3 = channel3(1:4096);
figure(1); 
% waterfall(signal1',signal2',signal3');
waterfall(signal1,signal2,signal3);

it says

Error using horzcat
Dimensions of matrices being concatenated are not consistent.

but my signal is of same duration(length). How plot it ? I want to compare the amplitudes of the signals in waterfall plot rather than subplots. Do I need to input any other things for the plot ?

Answer 1

[Star Strider]

Try this:

channel1 = sin(pi*[1:4096]/1024);                           % Create Data
channel2 = cos(pi*[1:4096]/1024);                           % Create Data
channel3 = sin(pi*[1:4096]/1024).*cos(pi*[1:4096]/2048);    % Create Data

signal1 = channel1(1:4096);
signal2 = channel2(1:4096);
signal3 = channel3(1:4096);
figure(1); 
% waterfall(signal1',signal2',signal3');
waterfall([signal1; signal2; signal3]);                     % Concatenate Vectors Into A Matrix