Matlab图中的自定义X轴值 [英] Custom x-axis values in a matlab plot

问题描述

当前，当我绘制一个9 x 6数组时，该图的x轴仅为1、2、3，最多9个.Y轴显示正确的值.

Currently when I plot a 9 by 6 array, the x-axis of the figure is just 1, 2, 3 up to 9. The Y-axis shows the correct values.

我希望自定义x轴值，而不是1到9.他们应该是

Instead of 1 to 9 I would like the x-axis values to be custom. They should be

1002004001000 2000 5000 10000 20000 50000

100 200 400 1000 2000 5000 10000 20000 50000

相反.我尝试过

set(gca,'XTick', [100 200 400 1000 2000 5000 10000 20000 50000])

但这不是正确的方法.是否有Matlab选项为x轴提供这些自定义值?为什么Matlab仍然只使用1到9?

But that's not the correct way to do it. Is there a Matlab option to have these custom values for the x-axis? Why is Matlab just using 1 to 9 anyway?

推荐答案

您应该使用 xTickLabel 代替了XTick.

MATLAB将每一列绘制为单独的曲线.因此，这意味着您有6条曲线和每条曲线9个数据点. x轴数据为1-9，因为您没有提供任何数据供MATLAB进行绘制.

MATLAB plots every column as a seperate curve. So, that means you have 6 curves and 9 data points for each curve. x-axis data is 1-9 because you did not provide any data for MATLAB to plot with.

此外，您可能想要错的东西.这样做将为您提供相等的间距.它只会将1-9替换为您的数组.由于您的x轴数据分布不均，因此很奇怪.

Furthermore, you probably want the wrong thing. Doing this will give you equal spacing. It will just replace 1-9 with your array. Since your x-axis data is not equally spaced, it will be weird.

您可能想要这样做:

xdat = [100 200 400 1000 2000 5000 10000 20000 50000];
ydat = rand(9,6); % Your y-axis data
plot(xdat, ydat)

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