Function finished to going to next

How i make sure that the function 1 is completely finished and the function 2 will be started normally in the second ordre after the 1. Thanks

[Walter Roberson]

Is this referring to the parallel toolkit ?

[Lila wagou]

Thanks for the comment, for a pre-processing with an external programme i used the matlab function 1 and for its post-processing i used the function 2, for an logical fonctionnement for my matlab program i must provide a wait for the second function until the sure finish of the first one, please any suggestion ?

Answer 1

[Jan]

You cannot control the activity of an external program from inside Matlab reliably. A soltuion would be to allow the external program to set a kind of flag, when it is finished, e.g. writing certain data to a specific file. Do you have an access to the external program?

[Lila wagou]

Thanks, When it is finished; the external program write 'Completed Treatment' in a specific file 'xx.dat', is there any way to provide a wait for the second function until the sure reading inside the 'xx.dat' the 'Completed Treatment' expression ?

[Lila wagou]

Please, any help

Answer 2

[Walter Roberson]

if you use system() to invoke the external program, then if the program does not start up graphics windows, then system() will not return until the program finishes.

[Lila wagou]

Thanks, i have not any idea about the system(), for my invoking i use the eval function. Please can you explain more ?

[Walter Roberson]

Please show the code you use for starting the program.

Is the external program one that starts up a GUI?

[Lila wagou]

The external program does not starts up a GUI it is a dos command with an input file for an output file.

The starting up is identical to: eval(['!notepad ']) for notepad invoking.

[Lila wagou]

Please, any help

[Walter Roberson]

I do not know what notepad is in this context.

If you are using eval() of a '!' string, then instead use system() of the string without the leading '!'.

When you use ! or system() of a command that does not start a GUI, then control does not return to MATLAB until the command completes.