You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: checkGX_binomial.m
    path of file: ./repos/PsPM/src/ext/VBA
    
    the code of the file until where you have to start completion: function x = checkGX_binomial(x,lim)

% finesses 0/1 (inifinite precision) binomial probabilities

    
function x = checkGX_binomial(x,lim)

% finesses 0/1 (inifinite precision) binomial probabilities

% function x = checkGX_binomial(x)
% IN:
%   - x: vector of binomial probabilities
%   - lim: probability threshold
% OUT:
%   - x: vector of corrected binomial probabilities

if nargin==1
    lim = 1e-8;
end