______ are similar to matrices but can have more than two dimensions. - R Quiz

R - Quiz(MCQ)

______ are similar to matrices but can have more than two dimensions.

A)

Columns

B)

Functions

C)

Packages

D)

Arrays

Correct Answer : Arrays

Explanation : Arrays are similar to matrices which can have more than two dimensions. See help(array) for details. Factors are created using the factor() function. We can Identify elements of a list using the [[]] convention.

Recently Updated in R Questions

_____ is simplest class of analytics.

A)

Predictive

B)

Prescriptive

C)

Summarization

D)

Descriptive

Correct Answer : Descriptive

Explanation : Descriptive is the simplest class of analytics. Predictive analytics can only forecast what might happen in the future because all predictive analytics are probabilistic in nature.

Which of the following involves predicting a categorical response?

A)

Classification

B)

Clustering

C)

Regression

D)

Summarization

Correct Answer : Classification

Explanation : Classification techniques are widely used in data mining to classify data.

________ is proprietary tool for predictive analytics.

A)

R

B)

EDR

C)

SAS

D)

SSAS

Correct Answer : SAS

Explanation : SAS (Statistical Analysis System) is a software suite developed by SAS Institute for advanced analytics.

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