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Python Data Science Essentials
book

Python Data Science Essentials

by Alberto Boschetti
April 2015
Beginner content levelBeginner
258 pages
5h 48m
English
Packt Publishing
Content preview from Python Data Science Essentials

Creating NumPy arrays

There is more than one way to create NumPy arrays. The following are some of the ways:

  • Transforming an existing data structure into an array
  • Creating an array from scratch and populating it with default or calculated values
  • Uploading some data from a disk into an array

If you are going to transform an existing data structure, the odds are in favor of you working with a structured list or a pandas DataFrame.

From lists to unidimensional arrays

One of the most common situations you will encounter when working with data is the transforming of a list into an array.

When operating such a transformation, it is important to consider the objects the lists contain because this will determine the dimensionality and the dtype of the resulting ...

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Publisher Resources

ISBN: 9781785280429Supplemental Content