Matlab：如何在变量尚不存在时设置变量

以下代码片段展示了如何在 Matlab 中仅当变量不存在时才设置变量：

set_variable_if_not_exists.m

if ~exist('my_variable', 'var')
    my_variable = 0; % or whatever default value you want to set
end

if ~exist('my_variable', 'var')
    my_variable = 0; % or whatever default value you want to set
end

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