Pandas DataFrame Plot - Pie Chart

access_time 7 months ago visibility4765 comment 0

This article provides examples about plotting pie chart using pandas.DataFrame.plot function.


The data I'm going to use is the same as the other article Pandas DataFrame Plot - Bar Chart. I'm also using Jupyter Notebook to plot them.

The DataFrame has 9 records:


Pie chart

df.groupby(['TYPE']).sum().plot(kind='pie', y='SALES')

The above code outputs the following chart:

Shadow effect

df.groupby(['TYPE']).sum().plot(kind='pie', y='SALES', shadow = True)

Start angle

df.groupby(['TYPE']).sum().plot(kind='pie', y='SALES', shadow = True, startangle=90)

Subplots (trellis)

We can also easily implement subplots/trellis charts.

Let's add derive one more column on the existing DataFrame using the following code:

df['COUNT'] = df['SALES'] /100

The dataframe now looks like this:


Now we can plot the charts using the following code:

df.groupby(['TYPE']).sum().plot(kind='pie', subplots=True, shadow = True,startangle=90,figsize=(15,10))

In the above code, subplots=True parameter is used to plot charts on both SALES and COUNT metrics. The chart size is also increased using figsize parameter.

The chart now looks like the following screenshot:

Add percentage

df.groupby(['TYPE']).sum().plot(kind='pie', subplots=True, shadow = True,startangle=90,
figsize=(15,10), autopct='%1.1f%%')

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