error in my code

I can't use csview() command, when I run the program, my command shows an error (' Unrecognized function or variable 'csview'.' )

and my code

% generate two clusters of color points

rgb = min(abs(randn(2000,3).*[0.5 0.3 0.1] + [0 0 0]),1);

rgb = [rgb; 1-rgb];

xyz = rgb2xyz(rgb);

xlabel('X');

ylabel('Z');

zlabel('Y');

hold on;

% plot the points

scatter3(xyz(:,1),xyz(:,3),xyz(:,2),10,rgb,'.');

view(3); grid on;

axis equal

axis([0 1 0 1.1 0 1]);

set(gca,'color','k','gridcolor','k','gridalpha',0.3)

set(gca,'projection','perspective');

view('xyz','alpha'0.2,'invert',1); hold on; % do this before scatter3()

how to fix this

many thanks ^^

Answer 1

[Stephen23]

You need to download this FEX submission (by clicking on the big blue "Download button"):

https://www.mathworks.com/matlabcentral/fileexchange/53786-image-manipulation-toolbox

and unzip it onto your MATLAB Search Path or into the current folder.

Have you done that?

[thelong le]

I have downloaded and unzipped them according to the path in (C:\Users\DELL\Downloads\_temp_matlab_R2021a_win64\bin\win64)

but my program still shows the above error, is there any other solution, many thanks

Stephen Cobeldick!

[Stephen23]

Do NOT add, remove, alter, edit, or change in any way the files in the MATLAB installation directories!

This is a very odd path, it looks like an installation or temporary installation path:

C:\Users\DELL\Downloads\_temp_matlab_R2021a_win64\bin\win64

A BIN directory is a big red flag, telling you "no, do not work in this directory". As a beginner you should put all of your own files (and any files you download, etc) into the default MATLAB startup directory, which on Windows is:

C:\Users\<user>\Documents\MATLAB

https://www.mathworks.com/help/matlab/matlab_env/matlab-startup-folder.html

You can also save MATLAB files in other locations and change the Search Path to suit:

https://www.mathworks.com/help/matlab/matlab_env/what-is-the-matlab-search-path.html

but NEVER in any installation directories of ANY application installed on your computer.