Explain the different data structures in r?

79

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What is a random forest? How do you build and evaluate a random forest in r?

88

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Give examples of “rbind()” and “cbind()” functions in r

156

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What is the use of stringr package.

85

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Explain about confusion matrix in r?

84

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How would you extract one particular word from a string?

81

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Given a vector of values, how would you convert it into a time series object?

105

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What do you know about the evaluate_model() function from “statisticalmodeling” package

115

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How would you fit a linear model over a scatter-plot?

89

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What are the different data structures in r? Briefly explain about them.

74

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Name some functions which can be used for debugging in r?

86

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How would you measure correlation in r?

97

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How would you create a scatterplot using ggplot2 package?

78

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how would you build a scatter-plot using plotly?

81

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What are the different import functions in r?

92

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