Mercurial > octave
view scripts/plot/draw/pareto.m @ 22302:1c4cd12987f5
Use Octave syntax in graphics demos.
* inputdlg.m, listdlg.m, waitbar.m, autumn.m, bone.m, cool.m, copper.m,
cubehelix.m, flag.m, gray.m, hot.m, hsv.m, jet.m, lines.m, ocean.m, pink.m,
prism.m, rainbow.m, rgbplot.m, spring.m, summer.m, viridis.m, white.m,
winter.m, annotation.m, axis.m, clabel.m, daspect.m, datetick.m, grid.m,
legend.m, lighting.m, material.m, pbaspect.m, shading.m, text.m, xlim.m,
ylim.m, zlim.m, area.m, bar.m, barh.m, camlight.m, colorbar.m, comet.m,
comet3.m, contour.m, contour3.m, contourf.m, cylinder.m, ellipsoid.m,
errorbar.m, ezcontour.m, ezcontourf.m, ezmesh.m, ezmeshc.m, ezplot.m,
ezplot3.m, ezsurf.m, ezsurfc.m, feather.m, fill.m, fplot.m, isocaps.m,
isonormals.m, isosurface.m, light.m, line.m, loglog.m, loglogerr.m, mesh.m,
meshc.m, meshz.m, pareto.m, patch.m, pcolor.m, pie.m, pie3.m, plot.m, plot3.m,
plotmatrix.m, plotyy.m, polar.m, quiver.m, quiver3.m, rectangle.m, ribbon.m,
rose.m, scatter.m, scatter3.m, semilogx.m, semilogxerr.m, semilogy.m,
semilogyerr.m, shrinkfaces.m, slice.m, smooth3.m, sombrero.m, stairs.m, stem.m,
stem3.m, stemleaf.m, surf.m, surfc.m, surfl.m, surfnorm.m, tetramesh.m,
trimesh.m, triplot.m, trisurf.m, waterfall.m, copyobj.m, hold.m, linkaxes.m,
linkprop.m, printd.m, refreshdata.m, subplot.m, zoom.m, pcr.m, dump_demos.m:
Use Octave syntax in graphics demos.
author | Rik <rik@octave.org> |
---|---|
date | Mon, 15 Aug 2016 15:15:30 -0700 |
parents | 516bb87ea72e |
children | bac0d6f07a3e |
line wrap: on
line source
## Copyright (C) 2007-2015 David Bateman ## Copyright (C) 2003 Alberto Terruzzi ## ## This file is part of Octave. ## ## Octave is free software; you can redistribute it and/or modify it ## under the terms of the GNU General Public License as published by ## the Free Software Foundation; either version 3 of the License, or (at ## your option) any later version. ## ## Octave is distributed in the hope that it will be useful, but ## WITHOUT ANY WARRANTY; without even the implied warranty of ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ## General Public License for more details. ## ## You should have received a copy of the GNU General Public License ## along with Octave; see the file COPYING. If not, see ## <http://www.gnu.org/licenses/>. ## -*- texinfo -*- ## @deftypefn {} {} pareto (@var{y}) ## @deftypefnx {} {} pareto (@var{y}, @var{x}) ## @deftypefnx {} {} pareto (@var{hax}, @dots{}) ## @deftypefnx {} {@var{h} =} pareto (@dots{}) ## Draw a Pareto chart. ## ## A Pareto chart is a bar graph that arranges 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 magnitude from left to right along the x-axis. ## ## 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. For quality improvement, the first few contributing causes ## (leftmost bars as presented on the diagram) 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. ## ## Typically only the magnitude data @var{y} is present in which case ## @var{x} is taken to be the range @code{1 : length (@var{y})}. If @var{x} ## is given it may be a string array, a cell array of strings, or a numerical ## vector. ## ## If the first argument @var{hax} is an axes handle, then plot into this axis, ## rather than the current axes returned by @code{gca}. ## ## The optional return value @var{h} is a 2-element vector with a graphics ## handle for the created bar plot and a second handle for the created line ## plot. ## ## 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 ## @seealso{bar, barh, hist, pie, plot} ## @end deftypefn function h = pareto (varargin) [hax, varargin, nargin] = __plt_get_axis_arg__ ("pareto", varargin{:}); if (nargin != 1 && nargin != 2) print_usage (); endif y = varargin{1}(:).'; if (nargin == 2) x = varargin{2}(:).'; if (! iscell (x)) if (ischar (x)) x = cellstr (x); else x = cellstr (num2str (x(:))); endif endif else x = cellstr (int2str ([1:numel(y)]')); endif [y, idx] = sort (y, "descend"); x = x(idx); cdf = cumsum (y); maxcdf = cdf(end); cdf ./= maxcdf; idx95 = find (cdf < 0.95, 1, "last") + 1; if (isempty (hax)) [ax, hbar, hline] = plotyy (1 : idx95, y(1:idx95), 1 : length (cdf), 100 * cdf, @bar, @plot); else [ax, hbar, hline] = plotyy (hax, 1 : idx95, y(1:idx95), 1 : length (cdf), 100 * cdf, @bar, @plot); endif axis (ax(1), [1 - 0.6, idx95 + 0.6, 0, maxcdf]); axis (ax(2), [1 - 0.6, idx95 + 0.6, 0, 100]); set (ax(2), "ytick", [0, 20, 40, 60, 80, 100], "yticklabel", {"0%", "20%", "40%", "60%", "80%", "100%"}, "ycolor", get (ax(1), "ycolor")); set (hline, "color", get (ax(1), "colororder")(1,:)); set (ax(1:2), "xtick", 1:idx95, "xticklabel", x(1:idx95)); if (nargout > 0) h = [hbar; hline]; endif endfunction %!demo %! clf; %! colormap (jet (64)); %! Cheese = {"Cheddar", "Swiss", "Camembert", "Munster", "Stilton", "Blue"}; %! Sold = [105, 30, 70, 10, 15, 20]; %! pareto (Sold, Cheese); %!demo %! clf; %! ## Suppose that we want establish which products makes 80% of turnover. %! Codes = {"AB4","BD7","CF8","CC5","AD11","BB5","BB3","AD8","DF3","DE7"}; %! Value = [2.35 7.9 2.45 1.1 0.15 13.45 5.4 2.05 0.85 1.65]'; %! SoldUnits = [54723 41114 16939 1576091 168000 687197 120222 168195, ... %! 1084118 55576]'; %! pareto (Value.*SoldUnits, Codes);