matlab 作图x轴对数

在MATLAB中，要将x轴设置为对数坐标，可以使用set(gca,'XScale','log')的方法。这将将当前的坐标轴设置为对数刻度。例如，对于二维数据的绘图，你可以使用以下代码：

x = linspace(-10,10,200);
y = cos(x);
plot(x,y)
set(gca,'XScale','log')

这段代码会生成一个x轴为对数刻度的余弦函数图像。如果你想要进行三维数据的绘图，并将x、y和z轴都设置为对数刻度，你可以使用如下的方法：

subplot(121)
contourf(peaks,30,'lines','none')
colormap jet
axis equal

subplot(122)
contourf(peaks,30,'lines','none')
colormap jet
axis equal
set(gca,'XScale','log','YScale','log','ZScale','log')

这段代码将会绘制两个子图，每个子图都有双对数坐标。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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