Chapter 2. NumPy Basics
After installing NumPy and getting some code to work, it's time to cover NumPy basics. This chapter introduces you to the fundamentals of NumPy and arrays. At the end of this chapter you will have a basic understanding of NumPy arrays and their associated functions.
The topics that we shall cover in this chapter are as follows:
- Data types
- Array types
- Type conversions
- Creating arrays
- Indexing
- Fancy indexing
- Slicing
- Manipulating shapes
The NumPy array object
NumPy has a multidimensional array object called ndarray. It consists of two parts as follows:
- The actual data
- Some metadata describing the data
The majority of array operations leave the raw data untouched. The only aspect that changes is the metadata.
We have already learned in the ...
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