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Pandas vs Dask: What are the differences?

Pandas: High-performance, easy-to-use data structures and data analysis tools for the Python programming language. Flexible and powerful data analysis / manipulation library for Python, providing labeled data structures similar to R data.frame objects, statistical functions, and much more; Dask: A flexible library for parallel computing in Python. It is a versatile tool that supports a variety of workloads. It is composed of two parts: Dynamic task scheduling optimized for computation. This is similar to Airflow, Luigi, Celery, or Make, but optimized for interactive computational workloads Big Data collections like parallel arrays, dataframes, and lists that extend common interfaces like NumPy, Pandas, or Python iterators to larger-than-memory or distributed environments. These parallel collections run on top of dynamic task schedulers. .

Pandas and Dask belong to "Data Science Tools" category of the tech stack.

Some of the features offered by Pandas are:

  • Easy handling of missing data (represented as NaN) in floating point as well as non-floating point data
  • Size mutability: columns can be inserted and deleted from DataFrame and higher dimensional objects
  • Automatic and explicit data alignment: objects can be explicitly aligned to a set of labels, or the user can simply ignore the labels and let Series, DataFrame, etc. automatically align the data for you in computations

On the other hand, Dask provides the following key features:

  • Supports a variety of workloads
  • Dynamic task scheduling
  • Trivial to set up and run on a laptop in a single process

Pandas is an open source tool with 20.8K GitHub stars and 8.27K GitHub forks. Here's a link to Pandas's open source repository on GitHub.

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Pros of Dask
Pros of Pandas
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      Easy data frame management
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      Extensive file format compatibility

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