Contenido del Curso
Ultimate Visualization with Python
1. Matplotlib Introduction
2. Creating Commonly Used Plots
5. Plotting with Seaborn
Ultimate Visualization with Python
Creating a Canvas
First of all, matplotlib consists of three layers:
- Backend layer (renders plot to screens or files);
- Artist layer (describes how data is arranged, is made up of one object,
Artist); - Scripting layer (connects the previous two layers and simplifies access to them).
We will mainly focus on the scripting layer with the pyplot module you have already seen and the artist layer. Artist layer contains the following:
- Containers (e.g.
Figure,Axes); - Primitives (e.g. Line, Rectangle, Circle, Text, etc).
Figure is the main Artist object and can be thought of as a canvas where all the plots will be located. Basically, it holds everything together.
On the other hand, Axes is an object made up of two axis objects, x-axis and y-axis.
Note
Figure= canvas,Axes= x-axis + y-axis.
Now let’s look at the creation of the Figure and its Axes:
Code Description
import matplotlib.pyplot as plt
First, we import the
pyplot submodule as plt.
fig, ax = plt.subplots()
Then we use its
subplots() function, which returns a figure and one Axes object by default.
ax.plot()
Next we apply the
plot() function to this Axes object to create an empty plot.
plt.show()
Finally, using the
show() function, we display the image of our canvas to the screen with one empty plot on it.
¿Todo estuvo claro?
Contenido del Curso
Ultimate Visualization with Python
1. Matplotlib Introduction
2. Creating Commonly Used Plots
5. Plotting with Seaborn
Ultimate Visualization with Python
Creating a Canvas
First of all, matplotlib consists of three layers:
- Backend layer (renders plot to screens or files);
- Artist layer (describes how data is arranged, is made up of one object,
Artist); - Scripting layer (connects the previous two layers and simplifies access to them).
We will mainly focus on the scripting layer with the pyplot module you have already seen and the artist layer. Artist layer contains the following:
- Containers (e.g.
Figure,Axes); - Primitives (e.g. Line, Rectangle, Circle, Text, etc).
Figure is the main Artist object and can be thought of as a canvas where all the plots will be located. Basically, it holds everything together.
On the other hand, Axes is an object made up of two axis objects, x-axis and y-axis.
Note
Figure= canvas,Axes= x-axis + y-axis.
Now let’s look at the creation of the Figure and its Axes:
Code Description
import matplotlib.pyplot as plt
First, we import the
pyplot submodule as plt.
fig, ax = plt.subplots()
Then we use its
subplots() function, which returns a figure and one Axes object by default.
ax.plot()
Next we apply the
plot() function to this Axes object to create an empty plot.
plt.show()
Finally, using the
show() function, we display the image of our canvas to the screen with one empty plot on it.
¿Todo estuvo claro?
