matplotlib 交换 x 和 y 轴

Question

Hello I have made a plot in matplot lib using pandas however I need to swap my x and y axis.

Here is my plot:

broomstick plot

however i need it to look like this:

correct broomstick plot

I'm using a pandas dataframe to plot the data.

I've looked over some documentation and other posts regarding swapping the x and y axis and haven't found any easy way to do this. Here some of my python code:

python code

Any resources or ideas would be greatly appreciated.

Answer 1

Try this. You need to include your y_vals as an additional column. So with this you can just specify your axis here df.plot(x=, y=) :

Code:

import numpy as np
import pandas as pd
import matplotlib.pyplot as plt


x = np.linspace(0, 10, 100)
y = np.cos(x)

df = pd.DataFrame({'y': y, 'x': x})

df.plot(x='x')
plt.show()

df.plot(x='y')
plt.show()

Plots: