Bubble Chart –
A bubble chart is a scatter plot in which a third dimension of the data is shown through the size of markers.
To create a Bubble chart we will use the gapminder data. So, Let’s read the data first.
import plotly.express as px
df = px.data.gapminder()
df.head()
Let’s check the minimum and maximum year in the dataframe.
print("Min Year: ", df['year'].min())
print("Max Year: ", df['year'].max())#output
Min Year: 1952
Max Year: 2007Let’s create a Bubble chart for the year 2007
# select only 2007 data
df_2007 = df[df['year']==2007]1 . Create a Bubble Chart with Plotly Express –
Let’s create a bubble chart with plotly express which makes it easy to create various kinds of plots easily in plotly.
We will plot gdpPercap on the x-axis and lifeExp on the y-axis. We will use the pop column for the size of the markers and use the continent column for the color parameter to distinguish between different continents.
fig = px.scatter(df_2007, x='gdpPercap', y='lifeExp',size='pop',
color='continent', log_x=True, size_max=60)
fig.show()
2 . Create an animated Bubble Chart with Plotly Express –
We can also create an animated bubble chart using plotly express. To create an animated bubble chart we need to use the animation_frame and animation_group arguments.
fig = px.scatter(df, x="gdpPercap", y="lifeExp", animation_frame="year",
animation_group="country", size="pop",
color="continent", log_x=True, size_max=55)
fig.show()
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