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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) 2000-2015 Teemu Ikonen
##
## 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  {} {} semilogxerr (@var{y}, @var{ey})
## @deftypefnx {} {} semilogxerr (@var{y}, @dots{}, @var{fmt})
## @deftypefnx {} {} semilogxerr (@var{x}, @var{y}, @var{ey})
## @deftypefnx {} {} semilogxerr (@var{x}, @var{y}, @var{err}, @var{fmt})
## @deftypefnx {} {} semilogxerr (@var{x}, @var{y}, @var{lerr}, @var{uerr}, @var{fmt})
## @deftypefnx {} {} semilogxerr (@var{x}, @var{y}, @var{ex}, @var{ey}, @var{fmt})
## @deftypefnx {} {} semilogxerr (@var{x}, @var{y}, @var{lx}, @var{ux}, @var{ly}, @var{uy}, @var{fmt})
## @deftypefnx {} {} semilogxerr (@var{x1}, @var{y1}, @dots{}, @var{fmt}, @var{xn}, @var{yn}, @dots{})
## @deftypefnx {} {} semilogxerr (@var{hax}, @dots{})
## @deftypefnx {} {@var{h} =} semilogxerr (@dots{})
## Produce 2-D plots using a logarithmic scale for the x-axis and errorbars
## at each data point.
##
## Many different combinations of arguments are possible.  The most common
## form is
##
## @example
## semilogxerr (@var{x}, @var{y}, @var{ey}, @var{fmt})
## @end example
##
## @noindent
## which produces a semi-logarithmic plot of @var{y} versus @var{x}
## with errors in the @var{y}-scale defined by @var{ey} and the plot
## format defined by @var{fmt}.  @xref{XREFerrorbar,,errorbar}, for available
## formats and additional information.
##
## If the first argument @var{hax} is an axes handle, then plot into this axis,
## rather than the current axes returned by @code{gca}.
##
## @seealso{errorbar, semilogyerr, loglogerr}
## @end deftypefn

## Created: 20.2.2001
## Author: Teemu Ikonen <tpikonen@pcu.helsinki.fi>
## Keywords: errorbar, plotting

function h = semilogxerr (varargin)

  [hax, varargin] = __plt_get_axis_arg__ ("semilogxerr", varargin{:});

  oldfig = [];
  if (! isempty (hax))
    oldfig = get (0, "currentfigure");
  endif
  unwind_protect
    hax = newplot (hax);

    set (hax, "xscale", "log");
    if (! ishold (hax))
      set (hax, "xminortick", "on");
    endif

    htmp = __errplot__ ("semilogxerr", hax, varargin{:});

  unwind_protect_cleanup
    if (! isempty (oldfig))
      set (0, "currentfigure", oldfig);
    endif
  end_unwind_protect

  if (nargout > 0)
    h = htmp;
  endif

endfunction


%!demo
%! clf;
%! x = exp (log (0.01):0.2:log (10));
%! y = wblpdf (x, 2, 2);
%! ey = 0.5*rand (size (y)) .* y;
%! semilogxerr (x, y, ey, "#~x-");
%! xlim (x([1, end]));
%! title ({"semilogxerr(): semilogx() plot with errorbars", ...
%!         "X-axis is logarithmic"});