Functionality shadowing

TitleDo not shadow built-in MATLAB functionality.
Severity level3
DescriptionFunctions, classes and variables shall not shadow MATLAB-installed functionality or other code. This includes MATLAB files (.m, .p, .mlapp, .mlx), mex-files (.mexw32 etc.) and Simulink files (.mdl, .slx). Be aware that with toolboxes installed you might shadow MATLAB-installed functions which you do not shadow with core MATLAB only.
RationaleShadowing code can result in unexpected behaviour, because it is unclear and not properly defined for example what function is called when multiple ones share the same name.