Effective Data Manipulation with pandas/

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Aggregate Methods

Aggregate Methods

Learn how to do aggregation on a Series.

We'll cover the following...

Aggregate methods collapse the values of a Series down to a scalar. It allows us to take detailed data and collapse it to a single value.

Aggregations

If we want to calculate the mean value of a Series, we can use the aggregation method mean:

Python 3.8
print(city_mpg.mean())

There are also a few aggregate properties. These start with is_. These are not functions but are rather the attributes of the Series class. We do not call them, and they evaluate to True or False:

Python 3.8
print(city_mpg.is_unique)
print(city_mpg.is_monotonic_increasing)

One method we need to be aware of is the quantile method. By default, it returns the 50 percent ...