# The Clustering Coefficient

Learn about the clustering coefficient metric and how to assess network connectivity and clustering.

The **clustering coefficient** is a metric that doesn’t try to measure the centrality of a node. Instead, it aims to estimate the degree to which nodes of the network tend to cluster together.

## The global clustering coefficient: Transitivity

The **global clustering coefficient** tries to summarize the degree of aggregation of the network with a single number. One of its names is the **transitivity of the network**.

Its main idea is to measure the number of triplets of the network. A **triplet** is a set of three nodes that are connected by either two or three edges.

When these nodes are connected by two edges, we call it an **open triplet**, such as the following:

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