Basic Statistical Functions for Package 'ff'

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Documentation for package ‘ffbase’ version 0.13.3

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

ffbase-package Basic statistical functions for ff

-- A --

abs.ff_vector Math for ff vectors
acos.ff_vector Math for ff vectors
acosh.ff_vector Math for ff vectors
addfforder Add the order of a ff vector of the 'ff' vector 'x'
all.ff Summary methods for ff objects
any.ff Summary methods for ff objects
Arithmetic Arithmetic Operators for ff vectors
as.character.ff Character Vectors
as.Date.ff_vector Date Conversion Functions for 'ff' vector
as.ffdf.ffdf Trivial implementation, but very handy
as.ram.ffdf As ram for an ffdf to get your ffdf as a data frame in RAM
asin.ff_vector Math for ff vectors
asinh.ff_vector Math for ff vectors
atan.ff_vector Math for ff vectors
atanh.ff_vector Math for ff vectors

-- B --

bigglm.ffdf Bounded memory linear regression
binned_sum Fast summing in different bins
binned_sum.default Fast summing in different bins
binned_sum.ff Fast summing in different bins
binned_sumsq Fast squared summing in different bins
binned_sumsq.default Fast squared summing in different bins
binned_sumsq.ff Fast squared summing in different bins
binned_tabulate Fast tabulating in different bins
binned_tabulate.default Fast tabulating in different bins
binned_tabulate.ff Fast tabulating in different bins
byMean Fast conditional mean
bySum Fast conditional sum

-- C --

c.ff Concatenate 'ff' vectors
ceiling.ff_vector Math for ff vectors
chunkify Chunkify an element-wise function
compact Compact a ff vector or ffdf data frame
compact.ff Compact a ff vector or ffdf data frame
compact.ffdf Compact a ff vector or ffdf data frame
condMean Fast conditional mean
condSum Fast conditional sum
cos.ff_vector Math for ff vectors
cosh.ff_vector Math for ff vectors
cummax.ff Cumulative Sums, Products, and Extremes
cummin.ff Cumulative Sums, Products, and Extremes
cumprod.ff Cumulative Sums, Products, and Extremes
cumsum.ff Cumulative Sums, Products, and Extremes
cut.ff Convert Numeric ff vector to factor ff

-- D --

diff.ff Lagged Differences
digamma.ff_vector Math for ff vectors
droplevels.ff The function 'droplevels' is used to drop unused levels from a 'ff' factor or , more commonly, from factors in a 'ffdf'
droplevels.ffdf The function 'droplevels' is used to drop unused levels from factors in a 'ffdf'
duplicated.ff Duplicated for ff and ffdf objects
duplicated.ffdf Duplicated for ff and ffdf objects

-- E --

exp.ff_vector Math for ff vectors
expand.ffgrid Create a 'ffdf' from All Combinations of Factors
expm1.ff_vector Math for ff vectors

-- F --

ffappend Append a ff vector to another ff vector
ffbase Basic statistical functions for ff
ffdfappend Append a dataframe or an 'ffdf' to another 'ffdf'
ffdfdply Performs a split-apply-combine on an ffdf
ffdfmatch Value Matching for ff objects
ffdfrbind.fill rbind for ffdf where missing columns are added if not available in one of the ffdf objects
ffdfsave Save a ffdf data.frame in directory
ffdfwith Evaluate an expression in a ffdf data environment
ffifelse Conditional Element Selection for 'ff' vectors.
ffmatch Value Matching for ff objects
ffordered Add the order of a ff vector of the 'ff' vector 'x'
ffrandom Generate 'ff' vector with draws from distribution
ffrep.int Replicate Elements of 'ff' vectors.
ffseq Sequence Generation of 'ff' vectors.
ffseq_len Sequence Generation of 'ff' vectors.
ffsorted Add the order of a ff vector of the 'ff' vector 'x'
ffwhich Create an index from a filter statement
floor.ff_vector Math for ff vectors
format.ff_vector Date Conversion Functions for 'ff' vector

-- G --

gamma.ff_vector Math for ff vectors
grouprunningcumsum Groups the input integer vector into several groups if the running cumulative sum increases a certain maximum number

-- H --

hist.ff hist for ff vectors

-- I --

ikey Creates a unique integer key for unique combinations of rows of an 'ffdf'
is.na.ff 'Not Available' / Missing Values for ff vectors
is.na<-.ff 'Not Available' / Missing Values for ff vectors

-- L --

laf_to_ffdf Use LaF to import data into 'ffdf' data.frame
lgamma.ff_vector Math for ff vectors
load.ffdf Loads ffdf data.frames from a directory
log.ff_vector Math for ff vectors
log10.ff_vector Math for ff vectors
log1p.ff_vector Math for ff vectors
log2.ff_vector Math for ff vectors

-- M --

Math Math for ff vectors
max.ff Minimum, maximum and range of ff vector
mean.ff Mean of ff vector
merge.ffdf Merge two ffdf by common columns, or do other versions of database join operations.
min.ff Minimum, maximum and range of ff vector
move.ffdf Moves all the columns of ffdf data.frames into a directory

-- O --

Operators Ops for ff vectors

-- P --

pack.ffdf Packs ffdf data.frames into a compressed file

-- Q --

quantile.ff quantiles

-- R --

range.ff Minimum, maximum and range of ff vector
rle_ff Compute the lengths and values of runs of equal values in a vector
round.ff_vector Math for ff vectors

-- S --

save.ffdf Save ffdf data.frames in a directory
set_ffbase_logging sets the logging of ffbase
sign.ff_vector Math for ff vectors
signif.ff_vector Math for ff vectors
sin.ff_vector Math for ff vectors
sinh.ff_vector Math for ff vectors
sqrt.ff_vector Math for ff vectors
subset.ff Subsetting a ff vector or ffdfdata frame
subset.ffdf Subsetting a ff vector or ffdfdata frame
sum.ff Sum of 'ff' vector Elements

-- T --

table Cross Tabulation and Table Creation
table.ff Cross Tabulation and Table Creation
tabulate.ff Tabulation for ff vectors
tan.ff_vector Math for ff vectors
tanh.ff_vector Math for ff vectors
transform.ffdf Transform a ffdf data.frame
trigamma.ff_vector Math for ff vectors
trunc.ff_vector Math for ff vectors

-- U --

unique.ff Unique values for ff and ffdf objects
unique.ffdf Unique values for ff and ffdf objects
unpack.ffdf Unpacks previously stored ffdf data.frame into a directory

-- W --

with.ffdf Evaluate an expression in a ffdf data environment
within.ffdf Evaluate an expression in a ffdf data environment

-- misc --

!.ff_vector Ops for ff vectors
!=.ff_vector Ops for ff vectors
%%.ff_vector Arithmetic Operators for ff vectors
%/%.ff_vector Arithmetic Operators for ff vectors
%in% Value Matching for ff objects
&.ff_vector Ops for ff vectors
*.ff_vector Arithmetic Operators for ff vectors
+.ff_vector Arithmetic Operators for ff vectors
-.ff_vector Arithmetic Operators for ff vectors
/.ff_vector Arithmetic Operators for ff vectors
<.ff_vector Ops for ff vectors
<=.ff_vector Ops for ff vectors
==.ff_vector Ops for ff vectors
>.ff_vector Ops for ff vectors
>=.ff_vector Ops for ff vectors
[.ff Reading and writing vectors extended to handle logical 'ff' vectors as indexes
[.ffdf Reading and writing data.frames (ffdf)
[<-.ff Reading and writing vectors extended to handle logical 'ff' vectors as indexes
[<-.ffdf Reading and writing data.frames (ffdf)
^.ff_vector Arithmetic Operators for ff vectors
|.ff_vector Ops for ff vectors