R Data StructuresLesson 18Free preview

R Vectors

This lesson is part of R · All levels

Summary

This lesson is going into the vector, which is the most basic data structure in R. All the single scalar data in R is actually a one-dimensional vector. Developers will learn the making of vectors with c() or seq(), element naming, positive/negative indexing operations, as well as the long adjustment rule (recycling rule).

Key points

Vectors are a collection of sequential elements with the same data type
Vector indexes in R start with the number 1 (not 0)
Indexing with a negative number (e.g.: v[-2]) will discard the element at that position
The recycling rule automatically repeats shorter vector elements when operated with long vectors

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