Our first plots with Matplotlib
We have just revised the basic ways of data handling with Python. Without further ado, let's create our first "Hello World!" plot example.
Importing the pyplot
To create a pandas DataFrame from objects such as lists and ndarrays, you may call:
importpandasaspd
To start creating Matplotlib plots, we first import the plotting API pyplot
by entering this command:
importmatplotlib.pyplotasplt
This will start your plotting routine.
Note
In Jupyter Notebook, you need to import modules once you begin a notebook session after starting the kernel.
Line plot
After importing matplotlib.pyplot
as plt
, we draw line plots with the plt.plot()
command.
Here is a code snippet for a simple example of plotting the temperature of the week:
# Import the Matplotlib module importmatplotlib.pyplotasplt # Use a list to store the daily temperature t = [22.2,22.3,22.5,21.8,22.5,23.4,22.8] # Plot the daily temperature t as a line plot plt.plot(t) # Show the plot plt.show()
After you run the code...