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: get_design_param_plot_pareto.m
    path of file: ./repos/AI-mag/run_design/param
    
    the code of the file until where you have to start completion: function [fct_data, plot_param, text_param] = get_design_param_plot_pareto()
% Return the data required for the Pareto plots of the inductor designs.
%
%    Define the variables.
%    Define the plots.
%    Define the display format.
%
%    Returns:
%        fct_data (fct): function for getting the designs be plotted and getting the user defined custom figures of merit
%        plot_param (struct): definition of the different plots
%        text_param (struct): definition of variable to be shown in the text field
%
%    (c) 2019-2020, ETH Zurich, Power Electronic Systems Laboratory, T. Guillod

% extract the data for the GUI:
%    - select which designs should be plotted
%    - extract variables for plotting and displaying (name, scaling, value, and unit)
fct_data = @get_data;

% select the different Pareto plots to be shown
%    - choice of the variable (x, y, and color) for the scatter plot
%    - the variable are chosen from the data created by the extraction function
%    - contro
    
function plot_param = get_plot_param(x_var, y_var, c_var, c_lim)
% Return the data for a single Pareto plot (scatter plot).
%
%    Parameters:
%        x_var (str): name of the x variable, chosen from the data created by the extraction function
%        y_var (str): name of the y variable, chosen from the data created by the extraction function
%        c_var (str): name of the x variable, chosen from the data created by the extraction function
%        c_lim (str): axis limit for the color axis
%
%    Returns:
%        plot_param (struct): definition of the scatter plot

% assign the variable names (names not the data)
plot_param.x_var = x_var;
plot_param.y_var = y_var;
plot_param.c_var = c_var;

% axis limit (empty for automatic)
plot_param.x_lim = [];
plot_param.y_lim = [];
plot_param.c_lim = c_lim;

% axis scale ('lin' or 'log')
plot_param.x_scale = 'lin';
plot_param.y_scale = 'lin';
plot_param.c_scale = 'lin';

% marker size for the scatter plot
plot_param.marker_pts_size = 20;

% marker size and color for the selected design
plot_param.marker_select_size = 10;
plot_param.marker_select_color = 'r';

% plot order for the scatter points
%    - 'none': original order
%    - 'ascend