在 matplotlib - python 中使 x 轴和 y 轴共用零点（在限制 x 轴之后）

Question

I have limited x axis and due to this I get two different zeros for x and y axis, I want to make it common origin and have link drawn from it, please have a look at code and figure -

    x=[0 , flow]
    y=[0 , pressure]
    plt.plot(x,y)
    plt.xlim(0,fr_value[len(fr_value)-1])
    plt.xlabel('Flow Rate')

Answer 1

You can set ylim

plt.ylim(bottom=0)

Sample:

x=[0 , 8]
y=[0 , 9]
plt.plot(x,y)
plt.xlim(0,8)
plt.ylim(bottom=0)
plt.xlabel('Flow Rate')