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October 19, 2017

Basic Data Structures V: Arrays in R

What are Arrays in R? Arrays in R are multidimensional (sometimes called n-d) data structures that hold members of a single data type. From an implementation point of view, an array is a vector that has one or two additional attributes – dim and dimnames. Only dim attribute is mandatory for an array. Another way […]

Article by P T / R Programming / basic usage, data, data structures, Getting Started, R programming, Statistics Leave a Comment

October 18, 2017

Basic Data Structures IV: Lists in R

What are Lists in R? Lists in R are a collection of heterogeneous data types. Therefore, lists in R can contain elements of different types. One way of viewing lists in R is to perceive them as vectors that don’t care (at least while adding elements) about the types of its members. Yet another way […]

Article by P T / R Programming / data, data structures, Getting Started, Lists, R programming, Statistics Leave a Comment

October 15, 2017

Basic Data Structures III: Data Frames in R

What are Data Frames in R? Data Frames in R are a two dimensional data structure used to hold data of heterogeneous types in a table-like format. A data frame comprises of rows and columns. Columns are the variables that you record in an experiment. Rows are the observation. More specifically, each row is an […]

Article by P T / R Programming / data, data structures, R programming, Statistics Leave a Comment

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