matplotlib basic example: Importing libraries - Creating data sets - Creating data frames - Reading from CSV - Exporting to CSV - Finding maximums - Plotting data

pandas_matplot_csv.py

import pandas as pd #this is how I usually import pandas
import matplotlib.pyplot as plt

names = ['Bob','Jessica','Mary','John','Mel']
births = [968, 155, 77, 578, 973]
BabyDataSet = list(zip(names,births))
df = pd.DataFrame(data = BabyDataSet, columns=['Names', 'Births'])

# Create graph
df['Births'].plot()

# Maximum value in the data set
MaxValue = df['Births'].max()

# Name associated with the maximum value
MaxName = df['Names'][df['Births'] == df['Births'].max()].values

# Text to display on graph
Text = str(MaxValue) + " - " + MaxName

# Add text to graph
plt.annotate(Text, xy=(1, MaxValue), xytext=(8, 0),
                 xycoords=('axes fraction', 'data'), textcoords='offset points')

print("The most popular name")
df[df['Births'] == df['Births'].max()]
#Sorted.head(1) can also be used
plt.show()