Attempt to execute SCRIPT <filename> as a function

Hi all, I am a new user of Matlab. Im learning how to debug a .m file called "test.m". I was asked to copy one backup, I made the name "test_debug.m". When I run the test_debug.m file, there is a error msg,

Attempt to execute SCRIPT test as a function: D:\ProgramFiles\Reference_src\test.m

test.m is not in path. But it could still successful run. It has called several functions inside the script. What should I add into/make changes for test_debug.m?

Thank you!

[zakria qadir]

i am getting this error?

Attempt to execute SCRIPT newplot as a function:

D:\MATLAB\R2017a\toolbox\matlab\graphics\newplot.m

Error in contour (line 66)

cax = newplot(cax);

Error in PSO_simulation (line 19)

contour(x_new, y_new, z , 20);

>>

[Image Analyst]

Chances are you named your m-file after a built-in function. Attach your m-file with the paper clip icon in a new question.

[Walter Roberson]

You would get that error message if you had accidentally corrupted newplot.m such as accidentally typing in a few characters before the 'function' line.

Answer 1

[Image Analyst]

Does the first line of test_debug say either

function test()

or

function test_debug()

or does it not have a function line at all?

It should say function test_debug - if it does not but has included other functions declared within the same m-file, then you will get that message since you can't have a script and a function in the same m-file. It has to be just a single script (meaning no function line) or it has to be one or more functions that are declared in it. ?

[Image Analyst]

Ivy's "Answer" moved here because it's not an Answer to her original question but a reply to me:

The first line of test_debug does not say neither these two. Instead, it first load a .dat file. Then it uses "size" to save the data into variables.

close all;
clc;
clear all;
tic;
load data_offline;
[y x c n]=size(raw_data);

It has to be more functions that are declared in it. So is test_debug a script? It has some functions but I can still run it and make figure.

Thanks!

[Image Analyst]

Whatever the name of your m-file is, that name has to be preceded by the word "function" as the first line in the file (or at least the first non-comment line). So if your m-file is called test.m you need to have this as line #1:

function test()

If your m-file is called test_debug.m you need to have this as line #1:

function test_debug()