Opt args

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Handles optional input arguments for functions

Other toolboxes required none
Function category Helper functions
This is a helper function that only exists to aid other functions in QETLAB. If you are an end-user of QETLAB, you likely will never have a reason to use this function.

opt_args is a function that provides a simple way of handling optional arguments within other functions. It reads in a cell of default values of variables and replaces them by optional argument values if those values were provided by the end-user. This reduces a check for optional arguments from what is often 8 or 9 lines of code down to 1 line of code, and also makes code easier to read. End-users of QETLAB have no reason to use this function.



Argument descriptions

  • DEF_ARGS: A cell containing default argument values. These same values will be output by opt_args unless they are overwritten by one of the optional arguments.
  • EXTRA_ARGn (optional): If provided, the n-th optional argument to this function will be its n-th output argument (in place of DEF_ARGS{n}).


Please see the source code of functions such as PermuteSystems to see examples of this function in use.

Source code

Click on "expand" to the right to view the MATLAB source code for this function.