R Data StructuresLesson 19Free preview

R Lists

This lesson is part of R · All levels

Summary

This study reviews List data structures in R that are capable of accommodating a variety of heterogeneous data types and objects. In one list, you can store numbers, strings, vectors, matrices, even other functions. Developers will study the indexing differences using single square brackets '[' and double '[['.

Key points

The list contains elements with different data types and structures
Created using the 'list(nama1 = val1, nama2 = val2, ...)' function
Single square brackets 'list[1]' return sub-lists that are still list-type
Square brackets double 'list[[1]]' or dollar sign 'list$name' extract the contents of the original element

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