[FIXED] Drawing vertical and horizontal lines at each point x,y point using python

Issue

As the title states I have some random X and Y data points:

+-----+-----+
| P1X | P1Y |
+-----+-----+
|   1 |   2 |
|   2 |   3 |
|  -1 |   4 |
+-----+-----+

d = {'P1X': [1,2,-1], 'P1Y': [2,3,4]}
df_data = pd.DataFrame(data=d)

and then I graph them using a scatterplot like so:

import seaborn as sns
from matplotlib import pyplot as plt

ax = sns.scatterplot(data=df_data, x='P1X', y='P1Y', legend=False)
plt.show()
 

Now how would I draw a black line horizontally and vertically at each point? Any and all answers are apprecatied!

Solution

You could simply loop over the x and y values, and call axvline and axyline from plt.

import matplotlib.pyplot as plt

x_data = [-1, 2, 3]
y_data = [2, 3, 5]

plt.scatter(x_data, y_data, c='red')

for x, y in zip(x_data, y_data):
    plt.axvline(x=x, color='b', linestyle='-')
    plt.axhline(y=y, color='g', linestyle='-')

Answered By - Sandertjuhh