python-matplotlibHow to plot data from CSV
import matplotlib.pyplot as plt
import pandas as pd
df = pd.read_csv("/var/www/examples/data.csv")
plt.plot(df.a, df.b)
plt.show()ctrl + cimport matplotlib.pyplot as pltloads Matplotlib module to use plotting capabilities | import pandas as pdload Pandas module |
pd.read_csvread specified | /var/www/examples/data.csvpath to sample |
.plot(plot specified data | df.a, df.buse column |
.show()render chart in a separate window | |
Usage example
import pandas as pd
import matplotlib.pyplot as plt
with open('/var/www/examples/data.csv', 'r') as f:
print(f.read()) # print CSV file contents
df = pd.read_csv("/var/www/examples/data.csv")
plt.plot(df.a, df.b)
plt.show()output
a,b
1,4
2,3
3,6