Answer / Hemant Dhanvik

In R, a tree is a recursive data structure composed of nodes where each node either represents a simple value or has branches to smaller trees. Common examples include decision trees and recursive partitioning trees.

What is reference class?

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What are statistical features of R?

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What is the difference between the library() and require() functions in R language?

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Which data structure is used to store categorical variables?

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I have a string “contact@dataflair.com”. Which string function can be used to split the string into two different strings “contact@dataflair” and “com”?

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Give a brief introduction to an array in R?

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Define Cluster.stats() ?

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Which packages are used to store and restore R objects to and from a file in R language?

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How would you measure correlation in r?

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What is R?

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Explain how to manipulate list elements in r?

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What is polynomial in r?

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