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: stat_summary.m
    path of file: ./repos/gramm/@gramm
    
    the code of the file until where you have to start completion: function obj=stat_summary(obj,varargin)
% stat_
    
function hndl=my_summary(obj,draw_data,params)

%Advanced defaults
if isempty(params.dodge)
    if sum(strcmp(params.geom,'bar'))>0 && draw_data.n_colors>1 %If we have a bar as geom, we dodge
        params.dodge=0.6;
    else
        params.dodge=0;
    end