Write a function that restricts the size and class of the input argument to a matrix of numeric values. For more information on using arguments blocks, see arguments Block Syntax.

function [m,s] = Stat(x)
    arguments
        x (:,:) {mustBeNumeric}
    end
    m = mean(x,'all');
    s = std(x,1,'all');
end

Call the function on an input of the wrong size. An error results.

[m,s] = Stat(rand(10,10,10))

Invalid input argument at position 1. Value must be a matrix.

Repeating arguments are single or groups of arguments that can be repeated zero or more times in a function call. The fRepeat function accepts repeating groups of arguments x, y, and style. x and y must be vectors of doubles or convertible to doubles. style must be the character string '--' or ':' .

For more information on repeating arguments, see Repeating Arguments.

function fRepeat(x,y,style)
    arguments (Repeating)
        x (1,:) double
        y (1,:) double
        style {mustBeMember(style,{'--',':'})}       
    end
    
    % Interleave inputs and call plot function
    z = reshape([x;y;style],1,[]);
    if ~isempty(z)
        plot(z{:});
    end
end

Call fRepeat with two groups of inputs.

x1 = 1:10; x2 = 1:5;
y1 = 1:10; y2 = 1:5;
s1 = ':'; s2 = '--';
fRepeat(x1,y1,s1,x2,y2,s2)