Translation of Base R-Like Functions for 'data.table' Objects

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Documentation for package ‘R2DT’ version 0.2

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asCharacterDT Forcing the character/string data type on a selected set of columns of a data.table object
asFactorDT Forcing the character/string data type on a selected set of columns of a data.table object
asIntegerDT Forcing the integer data type on a selected set of columns of a data.table object
asLogicalDT Forcing the logical/boolean data type on a selected set of columns of a data.table object
asNumericDT Forcing the numeric data type on a selected set of columns of a data.table object
checkDT Checking if an object is a data.table object and (optional) testing if some column names are valid for it
detectWeirdLevelNamesDT Detecting which levels of which factor of a data.table object contain non-alpha numeric characters (including whitespace) characters
extractLevelDT Extracting the levels of all or a selected set of the factor columns of a data.table object
extractRefLevelDT Extracting the reference level of all or a selected set of the factor columns of a data.table object
isCharacterDT Testing if a set of columns of a data.table object corresponds to the character/string data type
isFactorDT Testing if a set of columns of a data.table object corresponds to the factor data type
isIntegerDT Testing if a set of columns of a data.table object corresponds to the integer data type
isLogicalDT Testing if a set of columns of a data.table object corresponds to the logical/boolean data type
isNumericDT Testing if a set of columns of a data.table object corresponds to the numeric data type
lowFreqLevel2MissingDT Transform levels of all the factor columns of a data.table object to missing if too little observations pertain to a given level of it.
rbindDT Glueing, not merging, two data.table objects together, by matching column names
removeEmptyLevelsDT Remove empty levels from all the factor columns of a data.table object
setRefLevelDT Setting the reference level of all or a selected set of the factor columns of a data.table object
sortByRowIndexDT Order the rows of a data.table object by index