MATLAB: Representation of Y axis grid

MATLABplot

When I draw a plot, y axis has grids of 0, 1, 2, 3 * 10^5. This is not very easy to understand. Thus I would like to have grids of 0, 10000, 20000, and 30000. Please advise.

Best Answer

See the section on Control Value in Exponent Label (link) in Specify Axis Tick Values and Labels (link).

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ax = gca;   %or as appropriate
yticklabels = get(ax, 'YTickLabel');
yticklabels{end} = '';   %needs to exist but make it empty
set(ax, 'YTickLabel', yticklabels);

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I don’t remember when that was introduced. It was obviously after R2015a.

One approach to a work-around:

x = linspace(0,5,1000);
y = 100*exp(x).*sin(20*x);
plot(x,y)
ax = gca;
% ax.YAxis.Exponent = 2;
yt = ax.YTick;
xpnt = 2;
new_tick_lbls = 10.^log10((10^-xpnt)*abs(yt)).*sign(yt);
ytlblc = sprintfc('%.0f',new_tick_lbls);                                % Undocumented: ‘sprintfc’;                                    % Undocumented: ‘sprintfc’
ax.YTickLabel = ytlblc;
text(min(xlim), max(ylim)*1.05, sprintf('\\times10^{%.0f}', xpnt))

Experiment to get the result you want.

Best Answer

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MATLAB: Problem in setting Yaxis value

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