What is status for?

I've read many codes that when calling a function it equals to status. Like this:

[status]=function(s)

What is the status for?

Answer 1

[Jan]

See movefile. Checking the status allows to check for errors:

[status,message,messageid] = movefile(File1, File2);
if ~status
  warning(message)
end

Now a warning appears, but it could be an error also. E.g. the destination could be write protected.

Equivalent for mkdir. Here the use of the status and the messages is explained in the documentation also: doc mkdir.

[chaos4u2]

Thank you very much!!!

Answer 2

[Doug Hull]

To let you know the status, or output of the function. It varies based on each function. Read the doc for each function for details.

[chaos4u2]

Could you give me an example please, I don't see the difference between using it and don't using it. Thank you!

Answer 3

[rajashekar chava]

status(1)=!

[Walter Roberson]

This is not valid syntax in MATLAB. The ! operation is only valid at the beginning of a command.