Not understand function/command

Hello everyone i am a new learner of matlab and trying to read and understand code line by line. For that i use matlab help to understand the command. But in many cases, when i enter any command in matlab help it shows not found. I am attaching a code here below. In the last line there is a command 'frames' which i didn't understand and could not find in matlab help as well. Please help me..

Frames = zeros(540, 960, 40);

c = 0;

%for t=470:519

for t=1:100

      c = c + 1;

%   name=sprintf('lightswicth/%d.bmp', t);

%   name = strcat('foregroundaperture/b00',num2str(t),'.bmp');

      name = strcat('vid/Image',num2str(t),'.jpg');

  display(name)

  img=imread(name);

  imggray=rgb2gray(img);

  Frames(:, :, c)=imggray;

 end

[Torsten]

A three-dimensional matrix named "Frames" of dimension 540x960x40 is created in the very first line of the code. So this is no command, but a data structure created by the person who wrote the code.

[Shahrin Islam]

Thank you so much. But do I understand the purpose of writing this? Or what does it mean by 'Frames(:, :, c)=imggray;' . Thanks in advance

Answer 1

[Matt J]

It is not a command. Frames is the name of a variable which was created in the first line of the code you have posted.