R Language: A Quick Reference – III

R language: A Quick Reference is about learning R Programming with a short description of the widely used commands. It will help the learner and intermediate user of the R Programming Language to get help with different functions quickly. This Quick Reference is classified into different groups. Let us start with R Language: A Quick …

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R Language: A Quick Reference – II

R language: A Quick Reference is about learning R Programming with a short description of the widely used commands. It will help the learner and intermediate user of the R Programming Language to get help with different functions quickly. This Quick Reference is classified into different groups. Let us start with R Language: A Quick …

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Factors in R (Categorical Data)

Factors in R Language are used to represent categorical data in the R language. Factors can be ordered or unordered. One can think of a factor as an integer vector where each integer has a label. Factors are specially treated by modeling functions such as lm() and glm().  Factors are the data objects used for …

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Introduction: Matrices in R

While dealing with matrices in R, all columns in the matrix must have the same mode (numeric, character, etc.), and the same length. A matrix is a two-dimensional rectangular data set. It can be created using a vector input to the matrix( ) functions. The general syntax of creating matrices in R is: byrow = …

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