How can I display a script-called function's error message without pausing the script?

7 次查看（过去 30 天）
Daniel Toth
Daniel Toth 2018-6-8
评论： methaq ali 2018-7-28
I am writing a script for documentation purposes to "verify" a function I have written. I would like to demonstrate in the script what the function's error messages look like without stopping the script. I'm thinking of using a "try-catch" statement to not pause the script when an error is returned, but I am not sure how to display the function's error message in the "catch" part of the statement.
My function's error-message code has a specific format (i.e. it displays the error between lines of asterisks) and looks like this (for example):
if input<0
msg = 'Error: Input must be greater than 0.';
error('EXAMPLE:operational', 'Sign Error\n%s\n%s\n%s\n', ...
repmat('*',1,82), msg, repmat('*',1,82));
end
I am thinking of calling the function in my verification script like this:
try
test = myFun(-5); %Test negative input
catch
%What do I put here so that the script displays the function's error
%message to the command window?
end
It may be that I must simply put 'disp('the function returned an error')' in the catch statement, but it would be very nice to display the exact error message for documentation purposes. Thank you for your time!

请先登录，再回答此问题。

采纳的回答

Walter Roberson
Walter Roberson 2018-6-8
try
test = myFun(-5); %Test negative input
catch ME
disp(ME.message)
end

更多回答（1 个）

methaq ali
methaq ali 2018-7-28
编辑：Walter Roberson 2018-7-28
when writing the statement
net=newff(p,t,3,('logsig' 'purelin'));
|(this line under letter p)
the following message appear:
Error: Unexpected MATLAB expression.
Can any one help me to locate the error?

类别

在 Help Center 和 File Exchange 中查找有关 Startup and Shutdown 的更多信息

标签

产品


版本

R2017b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by