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qcaxis Plot colorbar axis
Help text:

qcaxis([c0 c1], cc) plots a colorbar axis with ticks at represented values cc with the bar stretching to c0 and c1. (cc may be empty.)
qcaxis(cc) calculates c0 and c1 from cc.
qcaxis(..., lbls) where lbls is either a cell array or numeric vector the same size as cc overrides the default tick labels. Labels are suppressed if lbls is empty.
qcaxis(..., ttl) adds a title to the axis.
qcaxis normally places the axis to the right or below the color bar.
qcaxis('t', ...) places the axis above, and qcaxis('l', ...) places the axis to the left instead.

qcaxis interprets settings from qticklen, qtextdist, and qaxshift differently from qxaxis and qyaxis: positive values are away from the colorbar.
Note that currently qmticks doesn't understand about this convention, so qmticks will produce unexpected results when used with qcaxis.

Example:

qfigure('qcaxis', 3, 3);

xx = repmat([1:10], 10, 1);

yy = xx';

zz = cos(xx).*sin(yy);

qimsc([0 0 1 1], zz, -1, 1);

qat 1 0

qcbar(10, [], 10, 0, 1);

qcaxis([-1:1:1], {'negv', '0', 'posv'});

qcaxis('l', [-1:.2:1],{});

qat 0 0

qcbarh([], 10, 0, 10, 1);

qcaxis([-1:1:1]);

qcaxis('t', [-1:.5:1],{});

qshrink

QPlot Documentation — (C) Daniel Wagenaar, 2014