Machine Learning

This quiz contains multiple-choice problems on caret, prediction with motivation, regression and model and cross-validation.

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Which of the following functions is a wrapper for different lattice plots to visualize the data?

levelplot

featurePlot

plotsample

None of the above

Which of the following functions can be used to identify near zero-variance variables?

zeroVar

nearVar

nearZeroVar

All of the above

Which of the following functions can be used by flag predictors for removal?

searchCorrelation

findCausation

findCorrelation

None of the above

Which of the following can be used to impute data sets based only on the information in the training set?

postProcess

preProcess

process

All of the above

The function preProcess estimates the required parameters for each operation. True or false?

True

False

Which of the following can also be used to find new variables that are linear combinations of the original set with independent components?

ICA

SCA

PCA

None of the above

Which of the following functions is used to generate the class distances?

preprocess.classDist

predict.classDist

predict.classDistance

All of the above

The preProcess class can be used for many operations on predictors. True or false?

True

False

Which of the following functions can be used to create balanced data splits?

newDataPartition

createDataPartition

renameDataPartition

None of the above

Which of the following can be used to generate balanced cross–validation groupings from a set of data?

createFolds

createSample

createResample

None of the above

Which of the following functions can be used to maximize the minimum dissimilarities?

sumDiss

minDiss

avgDiss

All of the above

Which of the following functions can create the indices for the time series’ type of splitting?

newTimeSlices

createTimeSlices

binTimeSlices

None of the above

Which of the following can be used to create sub–samples using a maximum dissimilarity approach?

minDissim

maxDissim

inmaxDissim

All of the above

Caret does not use the proxy package. True or false?

True

False

Caret stands for classification and regression training. True or false?

True

False

Quiz/Test Summary

Title: Machine Learning

Questions: 15

Contributed by:

Ivan Tue, Apr 05, 2022 08:13 AM UTC

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