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view default_arg.m @ 1061:c7b619cf5e34

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author Martin Almquist <malmquist@stanford.edu>
date Thu, 07 Feb 2019 18:42:50 -0800
parents 48b6fb693025
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function default_arg(s, val)
    if evalin('caller',sprintf('~exist(''%s'',''var'') || isempty(%s)',s,s))
        assignin('caller',s,val)
    end
end