matlab-validate-function-arguments

Declare each input with an optional size spec, class spec, and validator functions inside an arguments block. Use validators like mustBeNumeric or mustBeA to reject invalid types, since class specs alone silently convert inputs instead of rejecting them.

Map addRequired to positional arguments, addOptional to arguments with defaults, and addParameter to name-value struct fields. Replace anonymous validators with built-in equivalents like mustBePositive or mustBeMember, and use mustBeA instead of class specs when the original code rejected types.

Size specs reshape inputs rather than reject them, so a column vector passed to (1,:) is silently transposed to a row. To actually reject column vectors, use the mustBeRow validator (R2024b or later) without a size spec.

No, class specs convert rather than reject, so char input like 'hello' becomes ASCII codes before validators run. Use mustBeA(x, "double") or mustBeNumeric without a class spec to reject non-double input.

Avoid arguments blocks for conditional parameters, runtime-computed validation rules, partial parsing with KeepUnmatched, and nested functions where they are unsupported. Also do not use them inside .mlx Live Scripts or .mlapp App Designer files, which are binary containers.