Miscellaneous Helper Functions for B. Bischl


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Documentation for package ‘BBmisc’ version 1.11

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A B C D E F G H I L M N O P R S T V W misc

-- A --

addClasses A wrapper to add to the class attribute.
argsAsNamedList Parses '...' arguments to a named list.
asMatrixCols Extracts a named element from a list of lists.
asMatrixRows Extracts a named element from a list of lists.
asQuoted Converts a string into a quoted expression.

-- B --

binPack Simple bin packing.

-- C --

capitalizeStrings Capitalize strings in a vector
catf Wrapper for cat and sprintf.
cFactor Combine multiple factors and return a factor.
checkArg Check for a function argument.
checkListElementClass Check that a list contains only elements of a required type.
chunk Chunk elements of vectors into blocks of nearly equal size.
clipString Shortens strings to a given length.
coalesce Returns first non-missing, non-null argument.
collapse Collapse vector to string.
collapsef Collapse vector to string.
computeMode Compute statistical mode of a vector (value that occurs most frequently).
convertColsToList Convert rows (columns) of data.frame or matrix to lists.
convertDataFrameCols Converts columns in a data frame to characters, factors or numerics.
convertDfCols Deprecated function. Do not use!
convertInteger Conversion for single integer.
convertIntegers Conversion for integer vector.
convertListOfRowsToDataFrame Convert a list of row-vector of equal structure to a data.frame.
convertMatrixType Converts storage type of a matrix.
convertRowsToList Convert rows (columns) of data.frame or matrix to lists.
convertToShortString Converts any R object to a descriptive string so it can be used in messages.

-- D --

dapply Call 'lapply' on an object and return a data.frame.
deprecated Deprecated function. Do not use!
do.call2 Execute a function call similar to 'do.call'.
dropNamed Drop named elements of an object.

-- E --

ensureVector Blow up single scalars / objects to vectors / list by replication.
explode Split up a string into substrings.
extractSubList Extracts a named element from a list of lists.

-- F --

filterNull Filter a list for NULL values

-- G --

getAttributeNames Helper function for determining the vector of attribute names of a given object.
getBestIndex Return index of maximal/minimal/best element in numerical vector.
getClass1 Wrapper for 'class(x)[1]'.
getFirst Get the first/last element of a list/vector.
getLast Get the first/last element of a list/vector.
getMaxIndex Return index of maximal/minimal/best element in numerical vector.
getMaxIndexOfCols Find row- or columnwise the index of the maximal / minimal element in a matrix.
getMaxIndexOfRows Find row- or columnwise the index of the maximal / minimal element in a matrix.
getMinIndex Return index of maximal/minimal/best element in numerical vector.
getMinIndexOfCols Find row- or columnwise the index of the maximal / minimal element in a matrix.
getMinIndexOfRows Find row- or columnwise the index of the maximal / minimal element in a matrix.
getOperatingSystem Functions to determine the operating system.
getRelativePath Construct a path relative to another
getUnixTime Current time in seconds.
getUsedFactorLevels Determines used factor levels.

-- H --

hasAttributes Check if given object has certain attributes.

-- I --

insert Insert elements from one list/vector into another list/vector.
is.error Is return value of try an exception?
isDarwin Functions to determine the operating system.
isDirectory Is one / are several files a directory?
isEmptyDirectory Is one / are several directories empty?
isExpensiveExampleOk Conditional checking for expensive examples.
isFALSE A wrapper for 'identical(x, FALSE)'.
isLinux Functions to determine the operating system.
isProperlyNamed Are all elements of a list / vector uniquely named?
isScalarCharacter Is given argument an atomic vector or factor of length 1?
isScalarComplex Is given argument an atomic vector or factor of length 1?
isScalarFactor Is given argument an atomic vector or factor of length 1?
isScalarInteger Is given argument an atomic vector or factor of length 1?
isScalarLogical Is given argument an atomic vector or factor of length 1?
isScalarNA Checks whether an object is a scalar NA value.
isScalarNumeric Is given argument an atomic vector or factor of length 1?
isScalarValue Is given argument an atomic vector or factor of length 1?
isSubset Check subset relation on two vectors.
isSuperset Check superset relation on two vectors.
isUnix Functions to determine the operating system.
isValidName Can some strings be used for column or list element names without problems?
isWindows Functions to determine the operating system.
itostr Convert Integers to Strings

-- L --

lib A wrapper for 'library'.
listToShortString Deprecated function. Do not use!
load2 Load RData file and return objects in it.
lsort A wrapper for 'sort' to sort using the "C" collating rules.

-- M --

makeDataFrame Initialize data.frame in a convenient way.
makeFileCache A caching wrapper around load2.
makeProgressBar Create a progress bar with estimated time.
makeS3Obj Simple constructor for S3 objects based on lists.
makeSimpleFileLogger Simple logger which outputs to a file.
mapValues Replace values in atomic vectors
messagef Wrapper for message and sprintf.

-- N --

namedList Create named list, possibly initialized with a certain element.
names2 Replacement for names which always returns a vector.
normalize Normalizes numeric data to a given scale.

-- O --

optimizeSubInts Naive multi-start version of 'optimize' for global optimization.

-- P --

pause Pause in interactive mode and continue on <Enter>.
printHead More meaningful 'head(df)' output.
printStrToChar Print 'str(x)' of an object to a string / character vector.
printToChar Prints object to a string / character vector.
ProgressBar Create a progress bar with estimated time.

-- R --

rangeVal Calculate range statistic.
requirePackages Require some packages.
rowLapply Apply function to rows of a data frame.
rowSapply Apply function to rows of a data frame.

-- S --

save2 Save multiple objects to a file.
seq_col Generate sequences along rows or cols.
seq_row Generate sequences along rows or cols.
setAttribute A wrapper for 'attr(x, which) = y'.
setClasses A wrapper for 'class(x) = classes'.
setColNames Wrapper for 'rownames(x) = y', 'colnames(x) = y'.
setRowNames Wrapper for 'rownames(x) = y', 'colnames(x) = y'.
setValue Set a list element to a new value.
SimpleFileLogger Simple logger which outputs to a file.
sortByCol Sort the rows of a data.frame according to one or more columns.
splitPath Split a path into components
splitTime Split seconds into handy chunks of time.
stopf Wrapper for stop and sprintf.
strrepeat Repeat and join a string
suppressAll Suppresses all output except for errors.
symdiff Calculates symmetric set difference between two sets.
system3 Wrapper for system2 with better return type and errorhandling.

-- T --

toRangeStr Convert a numerical vector into a range string.

-- V --

vcapply Apply a function with a predefined return value
viapply Apply a function with a predefined return value
vlapply Apply a function with a predefined return value
vnapply Apply a function with a predefined return value

-- W --

warningf Wrapper for warning and sprintf.
which.first Find the index of first/last 'TRUE' value in a logical vector.
which.last Find the index of first/last 'TRUE' value in a logical vector.

-- misc --

%btwn% Check if some values are covered by the range of the values in a second vector.
%nin% Simply a negated 'in' operator.