MATLAB 图中的左右轴不同? [英] Different right and left axes in a MATLAB plot?

问题描述

我使用 plot() 在 MATLAB 中绘制了一条轨迹.我想添加一个带有一组不同刻度线(线性缩放)的右 y 轴.这可能吗?

解决方案

对于

I plot a single trace in MATLAB with plot(). I'd like to add a right-y axis with a different set of tick marks (scaled linearly). Is this possible?

解决方案

There are a number of good suggestions on this closely related question, although they deal with a more complicated situation than yours. If you want a super-simple DIY solution, you can try this:

plot(rand(1, 10));       % Plot some random data
ylabel(gca, 'scale 1');  % Add a label to the left y axis
set(gca, 'Box', 'off');  % Turn off the box surrounding the whole axes
axesPosition = get(gca, 'Position');           % Get the current axes position
hNewAxes = axes('Position', axesPosition, ...  % Place a new axes on top...
                'Color', 'none', ...           %   ... with no background color
                'YLim', [0 10], ...            %   ... and a different scale
                'YAxisLocation', 'right', ...  %   ... located on the right
                'XTick', [], ...               %   ... with no x tick marks
                'Box', 'off');                 %   ... and no surrounding box
ylabel(hNewAxes, 'scale 2');  % Add a label to the right y axis

And here's what you should get:

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