Q. The four most frequently used types of data objects in R are vectors, matrices, data frames and ________

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Q. A __________ is a set of elements appearing in rows and columns where the elements are of the same mode whether they are logical, numeric (integer or double), complex or character.

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Q. What is the simplest way of creating the vector?

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Q. Which function replicates elements of vectors?

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Q. The ________ function creates a regular sequence of values to form a vector.

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Q. Which function is used to enter in data at the terminal?

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Q. Computation with vectors is achieved using an element-by-element operation for avoiding _________

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Q. To bind a row onto an already existing matrix, the ______ function can be used.

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Q. Which of the following is a 3-dimensional dataset?

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Q. Which dimension corresponds to the explanatory variables collected for each species?

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Q. Using the ________ vector, we create a species factor and bind it to the columns of iris.df.

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Q. Accessing elements is achieved through a process called ________

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Q. Which are indexed by either row or column using a specific name or number?

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Q. What should we use to access elements with a value greater than five?

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Q. Lists can be created using the _______ function.

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Q. First component of the list can be accessed by _____________

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Q. How can we access the first component of the list?

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Q. The first component can be accessed using __________ operator.

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Q. To extract a sublist, we use _________ brackets.

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Q. The length of a list is ______ to the number of components in that list.

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