% -*- texinfo -*- % @deftypefn {Function File} {} pareto (@var{x}) % @deftypefnx {Function File} {} pareto (@var{x}, @var{y}) % @deftypefnx {Function File} {} pareto (@var{h}, @dots{}) % @deftypefnx {Function File} {@var{h} =} pareto (@dots{}) % Draw a Pareto chart, also called ABC chart. A Pareto chart is a bar graph % used to arrange information in such a way that priorities for process % improvement can be established. It organizes and displays information % to show the relative importance of data. The chart is similar to the % histogram or bar chart, except that the bars are arranged in decreasing % order from left to right along the abscissa. % % The fundamental idea (Pareto principle) behind the use of Pareto % diagrams is that the majority of an effect is due to a small subset of the % causes, so for quality improvement the first few (as presented on the % diagram) contributing causes to a problem usually account for the majority % of the result. Thus, targeting these 'major causes' for elimination % results in the most cost-effective improvement scheme. % % The data are passed as @var{x} and the abscissa as @var{y}. If @var{y} is % absent, then the abscissa are assumed to be @code{1 : length (@var{x})}. % @var{y} can be a string array, a cell array of strings or a numerical % vector. % % An example of the use of @code{pareto} is % % @example % @group % Cheese = @{'Cheddar', 'Swiss', 'Camembert', ... % 'Munster', 'Stilton', 'Blue'@}; % Sold = [105, 30, 70, 10, 15, 20]; % pareto(Sold, Cheese); % @end group % @end example % @end deftypefn

- axis % Set axis limits for plots.
- bar % Produce a bar graph from two vectors of x-y data.
- plot % Produces two-dimensional plots. Many different combinations of
- plotyy % Plots two sets of data with independent y-axes. The arguments @var{x1} and

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