Chapter 2. Vectors
The fundamental data type in R is the vector. You saw a few examples in Chapter 1, and now you’ll learn the details. We’ll start by examining how vectors relate to some other data types in R. You’ll see that unlike in languages in the C family, individual numbers (scalars) do not have separate data types but instead are special cases of vectors. On the other hand, as in C family languages, matrices are special cases of vectors.
We’ll spend a considerable amount of time on the following topics:
- Recycling
The automatic lengthening of vectors in certain settings
- Filtering
The extraction of subsets of vectors
- Vectorization
Where functions ...
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