R Data StructuresLesson 17Free preview

R Data Structures

This lesson is part of R · All levels

Summary

This lesson provides a comprehensive overview of the main data structure in R. Understanding the structure of data is very important because all statistical analysis is built on these structures. R classifies data based on its dimensions (1D, 2D, nD) and homogeneity of its data type.

Key points

1 Homogeneous dimension: vector; 1 Heterogeneous dimension: list
2 homogeneous dimensions: matrix; 2 heterogeneous dimensions: data frame
Multi-dimensional (nD) homogeneous: array
Factor is a data structure specific to statistical category variables

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