How to place arrows between multiple scatter points-CodePudding

The code below produce this graph. I wonder if there is a way to make the lines between value1 and value2 into arrows, pointing in the direction of 1 to 2, from blue to green (In this case none of blues is lower than the greens).

import numpy as np
import pandas as pd
import matplotlib.pyplot as plt
 
# Create a dataframe
value1=np.random.uniform(size=20)
value2=value1 np.random.uniform(size=20)/4
df = pd.DataFrame({'group':list(map(chr, range(65, 85))), 'value1':value1 , 'value2':value2 })
 
# Reorder it following the values of the first value:
ordered_df = df.sort_values(by='value1')
my_range=range(1,len(df.index) 1)
 
# The horizontal plot is made using the hline function
plt.hlines(y=my_range, xmin=ordered_df['value1'], xmax=ordered_df['value2'], color='grey', alpha=0.4)
plt.scatter(ordered_df['value1'], my_range, color='skyblue', alpha=1, label='value1')
plt.scatter(ordered_df['value2'], my_range, color='green', alpha=0.4 , label='value2')
plt.legend()
 
# Add title and axis names
plt.yticks(my_range, ordered_df['group'])
plt.title("Comparison of the value 1 and the value 2", loc='left')
plt.xlabel('Value of the variables')
plt.ylabel('Group')

# Show the graph
plt.show()

CodePudding user response：

You can use

CodePudding user response：

The best option for multiple arrows is