如何在Matlab中调整y轴绘图范围? [英] How to Adjust y axis plot range in Matlab?

问题描述

我需要在matlab中绘制以下函数

I need to plot the following functions in matlab

y1=sign(x)
y2=tanh(x)
y3=(x)/(x+1)

x范围是-5,5，间距为0.1 y-图的范围应该在-1.5到1.5之间.

The x-range is -5,5 with 0.1 spacing The y-plot range should be between -1.5 to 1.5.

每个图应在x和y轴上标记一个标签，并在右下角显示一个图例.

Each plot should have a labeled x and y axis and a legend in the lower right corner.

我唯一不知道的事情是如何调整y绘图范围.香港专业教育学院试图编辑实际的数字，但似乎要做的就是使图形失真. matlab中是否有一个命令可以让我调整y轴的绘制范围?

The only things I cant figure out is how to adjust the y plot range. Ive tried editing the actual figure but all that seems to do is distort the graph. Is there a command within matlab that will let me adjust the y axis plot range?

我还没有想出的另一件事是添加了一个图例，我可以在创建完图后完成，但我想它需要通过matlab命令来完成.

The other thing I havent figured out yet is adding a legend, I can do it after the figure is created but I guess it needs to be done by matlab command.

推荐答案

是的，请使用

Yes, use axis after the plot command:

axis([-5 5 -1.5 1.5])

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