Look at the help for warning: http://www.mathworks.com/help/techdoc/ref/warning.html (has optional inputs for formatting and placing values into the string) (see example 2) or you can use sprintf for the string.

–Loren

how can I put dynamically defined text into a warning message, e.g.
warning(‘File:NotFound’, …
['Input file in location: \n', pwd, '\', myfilename, '\n was not found. Defaults being used insted'])

As far as I can tell, if a warning is off, it just means the warning won’t be displayed, but lastwarn still gets updated. I don’t think there’s a way around that.

–Loren

I need a way to ‘record’ messages/warnings from several functions.
The reason I need this is as follows:

I have a big application with several ‘jobs’ where each job logs its succes/failure and a message to a database table at the end. Some ‘failures in the application are critical and cause an error. In this case the app terminates and i write the lasterr to the database. This is no problem because there can be only one ‘error’ since that ends the job.

Some things are bad, but not critical, and I have programme a specific warning mesages in the code. Howver, there can be more than one such ‘warning’ over the runtime, but all these non-critical ‘warning messages’ still need to be stored in the datatbase table at the very end.
Obviously, lastwarn doesnt work natively for this purpose because it only gives me the last warning.

Of course, I could define my own global variable called ‘my_message’ or something like that and write all my warnings to that variable. But this seems rather clumsy and I wanted to use Matlab’s built-in error/warning capabilities for this as described above. I would need a function like ‘allwarn’ (with corresponding ‘allwarn reset’).

Alternative: If I turn off a warning, is there a way to make sure that it also does not change the content of lastwarn? Then I could just turn off all Matlab-built-in warnings and ‘keep’ only the ones I issed.

Thank you for your help!
Janice

I don’t know of a good way. You could use the diary function and then parse what goes to the command window for warnings, but I don’t know if it will catch all of them, besides being tedious.

Out of curiosity, why do you need all the warnings?

–Loren

warning([lastwarn ' Additional warning message.' ])

and get all the warning messages at the end with lastwarn.
However, if there are any warnings thrown by Matlab itself,
this will delete the stack.

How do I get all warnings?

I am not aware of any way of doing that without changing your code to check for warnings each step along the way.

–Loren

Can we trace down all the warning messages(in a cell array), that appear on the command prompt after running a model simulation?

-Sunny

The code is already in Try/Catch block and the message still prompts on command prompt.

I have tried to set the following property:
MCRComponentState.MCC_ContourPlot_Lib_NET_set_warning_state

But its not working.

It would really help me if I can find out the appropriate syntax for suppressing all error messages.

Thanks,
Sam.

I have no idea. It’s possible that putting the code inside a try/catch will be part of the solution. I don’t know VB so I don’t know if you can call make a call and get the status – if that’s available, it may also help.

–Loren