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Load Multiple Functions from a Single File in Matlab [closed]
??? Error: File: /home/per/Documents/MATLAB/aliases.m Line: 6 Column: 1
Function definitions are not permitted in this context.

% Prevent Octave from thinking that this
% is a function file:

1;

function y = isvariable(x)
%Return non-zero if x is a function.
    y = exist(x, 'var');
end

function y = isfile(x)
%Return non-zero if x is a function.
    y = exist(x, 'file');
end

function y = isdir(x)
%Return non-zero if x is a function.
    y = exist(x, 'dir');
end

function y = isbuiltin(x)
%Return non-zero if x is a function.
    y = exist(x) == 5;
end