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