MATLAB - arguments

Documentation Function Argument Validation

---

Restrict Size and Type of Input

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

Define Name-Value Arguments

function myRectangle(X,Y,options)
    arguments
       X double
       Y double
       options.LineStyle (1,1) string = "-" 
       options.LineWidth (1,1) {mustBeNumeric} = 1
    end
    % Function code
    ...
end

% THIS ARE ALL VALID
myRectangle(4,5)
myRectangle(4,5,LineStyle=":",LineWidth=2)
myRectangle(4,5,LineWidth=2,LineStyle=":")
myRectangle(4,5,LineStyle=":")
myRectangle(4,5,LineWidth=2)

Or how i liked to do it:

function myRectangle(X,Y,LineStyle,LineWidth)
   arguments
      X double
      Y double
      LineStyle.LineStyle (1,1) string = "-" 
      LineWidth.LineWidth (1,1) {mustBeNumeric} = 1
   end
    Function code
   ...
end

NOTE: not too useful, but it works nontheless