people dating texas - Matlab validating inputs with input parser

For each input you have to specify a validation function.

In these examples I’ve provided an in-line anonymous function or function handle.

Let use these function to create the input schema for our variance function.

matlab validating inputs with input parser-72

% FUNCTION_NAME This is a high-level description of what function_name takes % as input, what it does and what it produces as output % % C = function_name(A, B) % C = function_name(A, B,'Parameter Name', Parameter Value) % % Inputs: % A num_cols by num_rows matrix of blah blah blah % B num_cols by num_rows matrix of blah blah blah % Optional: % 'Parameter Name1' followed by an integer blah blah % 'Parameter Name2' followed by one of 'foo','bar', blah blah % Output: % C num_cols by num_rows matrix of blah blah blah % .

The advantage though is that it can easily handle input type validation. So far without validation, though it seems clear how to add support via function handles, e.g.

As a developer, good luck extending your function to take one more argument, or one fewer, without having to rewrite your entire argument parsing logic. In our case, this means declaring x as the first argument.

If you want your function to accept optional, named arguments, you end the arguments list with the varargin keyword, which is a catch-all for any additional inputs (similar to the ... The next thing you need is an input Parser object, which is created with the input Parser function.

In this particular case, the two values could have been returned as elements of a single array, but that is not always possible or convenient.

The values to be returned may not have compatible dimensions, and it is often desirable to give the individual return values distinct names.

It is possible to use the to the number of values that are expected to be returned.

This allows you to write functions that behave differently depending on the number of values that the user of the function has requested.

If you are unfamiliar with objects in MATLAB or another programming language, you can think of objects as structs with specialized functions that can operate on them.

By convention, the input Parser object is stored as the variable p.

Input Parser is used in three easy steps: Specify All The Inputs Once you have an input parser object, you need to specify each input that you want to parse.

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