Advanced and Fast Data Transformation


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Documentation for package ‘collapse’ version 1.2.1

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

collapse-package Advanced and Fast Data Transformation

-- A --

A0-collapse-documentation Collapse Documentation & Overview
A1-fast-statistical-functions Fast (Grouped, Weighted) Statistical Functions for Matrix-Like Objects
A2-fast-grouping Fast (Ordered) Grouping
A3-data-frame-manipulation Fast Data Frame Manipulation
A4-quick-conversion Quick Data Conversion
A5-advanced-aggregation Advanced Data Aggregation
A6-data-transformations Data Transformations
A7-time-series-panel-series Time-Series and Panel-Series
A8-list-processing List Processing
A9-summary-statistics Summary Statistics
AA1-recode-replace Recode and Replace Values in Matrix-Like Objects
AA2-small-helpers Small (Helper) Functions
add_stub Small (Helper) Functions
add_vars Fast Select, Replace or Add Data Frame Columns
add_vars<- Fast Select, Replace or Add Data Frame Columns
all_identical Small (Helper) Functions
all_obj_equal Small (Helper) Functions
aperm.psmat Matrix / Array from Panel-Series
as.character_factor Quick Data Conversion
as.data.frame.descr Detailed Statistical Description of Data Frame
as.factor.GRP Fast Grouping / _collapse_ Grouping Objects
as.numeric_factor Quick Data Conversion
atomic_elem Find and Extract / Subset List Elements
atomic_elem<- Find and Extract / Subset List Elements
av Fast Select, Replace or Add Data Frame Columns
av<- Fast Select, Replace or Add Data Frame Columns

-- B --

B Fast Between (Averaging) and Within (Centering) Transformations
B.data.frame Fast Between (Averaging) and Within (Centering) Transformations
B.default Fast Between (Averaging) and Within (Centering) Transformations
B.grouped_df Fast Between (Averaging) and Within (Centering) Transformations
B.matrix Fast Between (Averaging) and Within (Centering) Transformations
B.pdata.frame Fast Between (Averaging) and Within (Centering) Transformations
B.pseries Fast Between (Averaging) and Within (Centering) Transformations
BY Split-Apply-Combine Computing
BY.data.frame Split-Apply-Combine Computing
BY.default Split-Apply-Combine Computing
BY.grouped_df Split-Apply-Combine Computing
BY.matrix Split-Apply-Combine Computing

-- C --

cat_vars Fast Select, Replace or Add Data Frame Columns
cat_vars<- Fast Select, Replace or Add Data Frame Columns
char_vars Fast Select, Replace or Add Data Frame Columns
char_vars<- Fast Select, Replace or Add Data Frame Columns
ckmatch Small (Helper) Functions
collap Advanced Data Aggregation
collapg Advanced Data Aggregation
collapse Advanced and Fast Data Transformation
collapse-depreciated Depreciated _collapse_ Functions
collapse-documentation Collapse Documentation & Overview
collapse-options _collapse_ Global Options
collapv Advanced Data Aggregation

-- D --

D Fast (Quasi-, Log-) Differences for Time-Series and Panel Data
D.data.frame Fast (Quasi-, Log-) Differences for Time-Series and Panel Data
D.default Fast (Quasi-, Log-) Differences for Time-Series and Panel Data
D.grouped_df Fast (Quasi-, Log-) Differences for Time-Series and Panel Data
D.list Fast (Quasi-, Log-) Differences for Time-Series and Panel Data
D.matrix Fast (Quasi-, Log-) Differences for Time-Series and Panel Data
D.pdata.frame Fast (Quasi-, Log-) Differences for Time-Series and Panel Data
D.pseries Fast (Quasi-, Log-) Differences for Time-Series and Panel Data
dapply Data Apply
Date_vars Fast Select, Replace or Add Data Frame Columns
Date_vars<- Fast Select, Replace or Add Data Frame Columns
descr Detailed Statistical Description of Data Frame
Dlog Fast (Quasi-, Log-) Differences for Time-Series and Panel Data
Dlog.data.frame Fast (Quasi-, Log-) Differences for Time-Series and Panel Data
Dlog.default Fast (Quasi-, Log-) Differences for Time-Series and Panel Data
Dlog.grouped_df Fast (Quasi-, Log-) Differences for Time-Series and Panel Data
Dlog.list Fast (Quasi-, Log-) Differences for Time-Series and Panel Data
Dlog.matrix Fast (Quasi-, Log-) Differences for Time-Series and Panel Data
Dlog.pdata.frame Fast (Quasi-, Log-) Differences for Time-Series and Panel Data
Dlog.pseries Fast (Quasi-, Log-) Differences for Time-Series and Panel Data

-- F --

F Fast Lags and Leads for Time-Series and Panel Data
F.data.frame Fast Lags and Leads for Time-Series and Panel Data
F.default Fast Lags and Leads for Time-Series and Panel Data
F.grouped_df Fast Lags and Leads for Time-Series and Panel Data
F.matrix Fast Lags and Leads for Time-Series and Panel Data
F.pdata.frame Fast Lags and Leads for Time-Series and Panel Data
F.pseries Fast Lags and Leads for Time-Series and Panel Data
fact_vars Fast Select, Replace or Add Data Frame Columns
fact_vars<- Fast Select, Replace or Add Data Frame Columns
fbetween Fast Between (Averaging) and Within (Centering) Transformations
fbetween.data.frame Fast Between (Averaging) and Within (Centering) Transformations
fbetween.default Fast Between (Averaging) and Within (Centering) Transformations
fbetween.grouped_df Fast Between (Averaging) and Within (Centering) Transformations
fbetween.matrix Fast Between (Averaging) and Within (Centering) Transformations
fbetween.pdata.frame Fast Between (Averaging) and Within (Centering) Transformations
fbetween.pseries Fast Between (Averaging) and Within (Centering) Transformations
fcompute Fast Transform and Compute Columns on a Data Frame
fdiff Fast (Quasi-, Log-) Differences for Time-Series and Panel Data
fdiff.data.frame Fast (Quasi-, Log-) Differences for Time-Series and Panel Data
fdiff.default Fast (Quasi-, Log-) Differences for Time-Series and Panel Data
fdiff.grouped_df Fast (Quasi-, Log-) Differences for Time-Series and Panel Data
fdiff.list Fast (Quasi-, Log-) Differences for Time-Series and Panel Data
fdiff.matrix Fast (Quasi-, Log-) Differences for Time-Series and Panel Data
fdiff.pdata.frame Fast (Quasi-, Log-) Differences for Time-Series and Panel Data
fdiff.pseries Fast (Quasi-, Log-) Differences for Time-Series and Panel Data
fdim Small (Helper) Functions
ffirst Fast (Grouped) First and Last Value for Matrix-Like Objects
ffirst.data.frame Fast (Grouped) First and Last Value for Matrix-Like Objects
ffirst.default Fast (Grouped) First and Last Value for Matrix-Like Objects
ffirst.grouped_df Fast (Grouped) First and Last Value for Matrix-Like Objects
ffirst.matrix Fast (Grouped) First and Last Value for Matrix-Like Objects
fFtest Fast F-test of Linear Models (with Factors)
fgroup_by Fast Grouping / _collapse_ Grouping Objects
fgroup_vars Fast Grouping / _collapse_ Grouping Objects
fgrowth Fast Growth Rates for Time-Series and Panel Data
fgrowth.data.frame Fast Growth Rates for Time-Series and Panel Data
fgrowth.default Fast Growth Rates for Time-Series and Panel Data
fgrowth.grouped_df Fast Growth Rates for Time-Series and Panel Data
fgrowth.list Fast Growth Rates for Time-Series and Panel Data
fgrowth.matrix Fast Growth Rates for Time-Series and Panel Data
fgrowth.pdata.frame Fast Growth Rates for Time-Series and Panel Data
fgrowth.pseries Fast Growth Rates for Time-Series and Panel Data
fHDbetween Higher-Dimensional Centering and Linear Prediction
fHDbetween.data.frame Higher-Dimensional Centering and Linear Prediction
fHDbetween.default Higher-Dimensional Centering and Linear Prediction
fHDbetween.matrix Higher-Dimensional Centering and Linear Prediction
fHDbetween.pdata.frame Higher-Dimensional Centering and Linear Prediction
fHDbetween.pseries Higher-Dimensional Centering and Linear Prediction
fHDwithin Higher-Dimensional Centering and Linear Prediction
fHDwithin.data.frame Higher-Dimensional Centering and Linear Prediction
fHDwithin.default Higher-Dimensional Centering and Linear Prediction
fHDwithin.matrix Higher-Dimensional Centering and Linear Prediction
fHDwithin.pdata.frame Higher-Dimensional Centering and Linear Prediction
fHDwithin.pseries Higher-Dimensional Centering and Linear Prediction
finteraction Fast Factor Generation and Vector Grouping
flag Fast Lags and Leads for Time-Series and Panel Data
flag.data.frame Fast Lags and Leads for Time-Series and Panel Data
flag.default Fast Lags and Leads for Time-Series and Panel Data
flag.grouped_df Fast Lags and Leads for Time-Series and Panel Data
flag.matrix Fast Lags and Leads for Time-Series and Panel Data
flag.pdata.frame Fast Lags and Leads for Time-Series and Panel Data
flag.pseries Fast Lags and Leads for Time-Series and Panel Data
flast Fast (Grouped) First and Last Value for Matrix-Like Objects
flast.data.frame Fast (Grouped) First and Last Value for Matrix-Like Objects
flast.default Fast (Grouped) First and Last Value for Matrix-Like Objects
flast.grouped_df Fast (Grouped) First and Last Value for Matrix-Like Objects
flast.matrix Fast (Grouped) First and Last Value for Matrix-Like Objects
fmax Fast (Grouped) Maxima and Minima for Matrix-Like Objects
fmax.data.frame Fast (Grouped) Maxima and Minima for Matrix-Like Objects
fmax.default Fast (Grouped) Maxima and Minima for Matrix-Like Objects
fmax.grouped_df Fast (Grouped) Maxima and Minima for Matrix-Like Objects
fmax.matrix Fast (Grouped) Maxima and Minima for Matrix-Like Objects
fmean Fast (Grouped, Weighted) Mean for Matrix-Like Objects
fmean.data.frame Fast (Grouped, Weighted) Mean for Matrix-Like Objects
fmean.default Fast (Grouped, Weighted) Mean for Matrix-Like Objects
fmean.grouped_df Fast (Grouped, Weighted) Mean for Matrix-Like Objects
fmean.matrix Fast (Grouped, Weighted) Mean for Matrix-Like Objects
fmedian Fast (Grouped) Median Value for Matrix-Like Objects
fmedian.data.frame Fast (Grouped) Median Value for Matrix-Like Objects
fmedian.default Fast (Grouped) Median Value for Matrix-Like Objects
fmedian.grouped_df Fast (Grouped) Median Value for Matrix-Like Objects
fmedian.matrix Fast (Grouped) Median Value for Matrix-Like Objects
fmin Fast (Grouped) Maxima and Minima for Matrix-Like Objects
fmin.data.frame Fast (Grouped) Maxima and Minima for Matrix-Like Objects
fmin.default Fast (Grouped) Maxima and Minima for Matrix-Like Objects
fmin.grouped_df Fast (Grouped) Maxima and Minima for Matrix-Like Objects
fmin.matrix Fast (Grouped) Maxima and Minima for Matrix-Like Objects
fmode Fast (Grouped, Weighted) Statistical Mode for Matrix-Like Objects
fmode.data.frame Fast (Grouped, Weighted) Statistical Mode for Matrix-Like Objects
fmode.default Fast (Grouped, Weighted) Statistical Mode for Matrix-Like Objects
fmode.grouped_df Fast (Grouped, Weighted) Statistical Mode for Matrix-Like Objects
fmode.matrix Fast (Grouped, Weighted) Statistical Mode for Matrix-Like Objects
fncol Small (Helper) Functions
fNdistinct Fast (Grouped) Distinct Value Count for Matrix-Like Objects
fNdistinct.data.frame Fast (Grouped) Distinct Value Count for Matrix-Like Objects
fNdistinct.default Fast (Grouped) Distinct Value Count for Matrix-Like Objects
fNdistinct.grouped_df Fast (Grouped) Distinct Value Count for Matrix-Like Objects
fNdistinct.matrix Fast (Grouped) Distinct Value Count for Matrix-Like Objects
fnlevels Small (Helper) Functions
fNobs Fast (Grouped) Observation Count for Matrix-Like Objects
fNobs.data.frame Fast (Grouped) Observation Count for Matrix-Like Objects
fNobs.default Fast (Grouped) Observation Count for Matrix-Like Objects
fNobs.grouped_df Fast (Grouped) Observation Count for Matrix-Like Objects
fNobs.matrix Fast (Grouped) Observation Count for Matrix-Like Objects
fnrow Small (Helper) Functions
fprod Fast (Grouped, Weighted) Product for Matrix-Like Objects
fprod.data.frame Fast (Grouped, Weighted) Product for Matrix-Like Objects
fprod.default Fast (Grouped, Weighted) Product for Matrix-Like Objects
fprod.grouped_df Fast (Grouped, Weighted) Product for Matrix-Like Objects
fprod.matrix Fast (Grouped, Weighted) Product for Matrix-Like Objects
fscale Fast (Grouped, Weighted) Scaling and Centering of Matrix-like Objects
fscale.data.frame Fast (Grouped, Weighted) Scaling and Centering of Matrix-like Objects
fscale.default Fast (Grouped, Weighted) Scaling and Centering of Matrix-like Objects
fscale.grouped_df Fast (Grouped, Weighted) Scaling and Centering of Matrix-like Objects
fscale.matrix Fast (Grouped, Weighted) Scaling and Centering of Matrix-like Objects
fscale.pdata.frame Fast (Grouped, Weighted) Scaling and Centering of Matrix-like Objects
fscale.pseries Fast (Grouped, Weighted) Scaling and Centering of Matrix-like Objects
fsd Fast (Grouped, Weighted) Variance and Standard Deviation for Matrix-Like Objects
fsd.data.frame Fast (Grouped, Weighted) Variance and Standard Deviation for Matrix-Like Objects
fsd.default Fast (Grouped, Weighted) Variance and Standard Deviation for Matrix-Like Objects
fsd.grouped_df Fast (Grouped, Weighted) Variance and Standard Deviation for Matrix-Like Objects
fsd.matrix Fast (Grouped, Weighted) Variance and Standard Deviation for Matrix-Like Objects
fselect Fast Select, Replace or Add Data Frame Columns
fselect<- Fast Select, Replace or Add Data Frame Columns
fsubset Fast Subsetting
fsubset.data.frame Fast Subsetting
fsubset.default Fast Subsetting
fsubset.matrix Fast Subsetting
fsum Fast (Grouped, Weighted) Sum for Matrix-Like Objects
fsum.data.frame Fast (Grouped, Weighted) Sum for Matrix-Like Objects
fsum.default Fast (Grouped, Weighted) Sum for Matrix-Like Objects
fsum.grouped_df Fast (Grouped, Weighted) Sum for Matrix-Like Objects
fsum.matrix Fast (Grouped, Weighted) Sum for Matrix-Like Objects
ftransform Fast Transform and Compute Columns on a Data Frame
funique Small (Helper) Functions
fvar Fast (Grouped, Weighted) Variance and Standard Deviation for Matrix-Like Objects
fvar.data.frame Fast (Grouped, Weighted) Variance and Standard Deviation for Matrix-Like Objects
fvar.default Fast (Grouped, Weighted) Variance and Standard Deviation for Matrix-Like Objects
fvar.grouped_df Fast (Grouped, Weighted) Variance and Standard Deviation for Matrix-Like Objects
fvar.matrix Fast (Grouped, Weighted) Variance and Standard Deviation for Matrix-Like Objects
fwithin Fast Between (Averaging) and Within (Centering) Transformations
fwithin.data.frame Fast Between (Averaging) and Within (Centering) Transformations
fwithin.default Fast Between (Averaging) and Within (Centering) Transformations
fwithin.grouped_df Fast Between (Averaging) and Within (Centering) Transformations
fwithin.matrix Fast Between (Averaging) and Within (Centering) Transformations
fwithin.pdata.frame Fast Between (Averaging) and Within (Centering) Transformations
fwithin.pseries Fast Between (Averaging) and Within (Centering) Transformations

-- G --

G Fast Growth Rates for Time-Series and Panel Data
G.data.frame Fast Growth Rates for Time-Series and Panel Data
G.default Fast Growth Rates for Time-Series and Panel Data
G.grouped_df Fast Growth Rates for Time-Series and Panel Data
G.list Fast Growth Rates for Time-Series and Panel Data
G.matrix Fast Growth Rates for Time-Series and Panel Data
G.pdata.frame Fast Growth Rates for Time-Series and Panel Data
G.pseries Fast Growth Rates for Time-Series and Panel Data
get_elem Find and Extract / Subset List Elements
get_vars Fast Select, Replace or Add Data Frame Columns
get_vars<- Fast Select, Replace or Add Data Frame Columns
GGDC10S Groningen Growth and Development Centre 10-Sector Database
groupid Generate Run-Length Type Group-Id
group_names.GRP Fast Grouping / _collapse_ Grouping Objects
GRP Fast Grouping / _collapse_ Grouping Objects
GRP.default Fast Grouping / _collapse_ Grouping Objects
GRP.factor Fast Grouping / _collapse_ Grouping Objects
GRP.grouped_df Fast Grouping / _collapse_ Grouping Objects
GRP.pdata.frame Fast Grouping / _collapse_ Grouping Objects
GRP.pseries Fast Grouping / _collapse_ Grouping Objects
GRP.qG Fast Grouping / _collapse_ Grouping Objects
gv Fast Select, Replace or Add Data Frame Columns
gv<- Fast Select, Replace or Add Data Frame Columns

-- H --

has_elem Find and Extract / Subset List Elements
HDB Higher-Dimensional Centering and Linear Prediction
HDB.data.frame Higher-Dimensional Centering and Linear Prediction
HDB.default Higher-Dimensional Centering and Linear Prediction
HDB.matrix Higher-Dimensional Centering and Linear Prediction
HDB.pdata.frame Higher-Dimensional Centering and Linear Prediction
HDB.pseries Higher-Dimensional Centering and Linear Prediction
HDW Higher-Dimensional Centering and Linear Prediction
HDW.data.frame Higher-Dimensional Centering and Linear Prediction
HDW.default Higher-Dimensional Centering and Linear Prediction
HDW.matrix Higher-Dimensional Centering and Linear Prediction
HDW.pdata.frame Higher-Dimensional Centering and Linear Prediction
HDW.pseries Higher-Dimensional Centering and Linear Prediction

-- I --

irreg_elem Find and Extract / Subset List Elements
is.categorical Small (Helper) Functions
is.Date Small (Helper) Functions
is.GRP Fast Grouping / _collapse_ Grouping Objects
is.qG Fast Factor Generation and Vector Grouping
is.regular Regular Objects and Unlistable Lists
is.unlistable Regular Objects and Unlistable Lists

-- L --

L Fast Lags and Leads for Time-Series and Panel Data
L.data.frame Fast Lags and Leads for Time-Series and Panel Data
L.default Fast Lags and Leads for Time-Series and Panel Data
L.grouped_df Fast Lags and Leads for Time-Series and Panel Data
L.matrix Fast Lags and Leads for Time-Series and Panel Data
L.pdata.frame Fast Lags and Leads for Time-Series and Panel Data
L.pseries Fast Lags and Leads for Time-Series and Panel Data
ldepth Determine the Depth / Level of Nesting of a List
list_elem Find and Extract / Subset List Elements
list_elem<- Find and Extract / Subset List Elements
logi_vars Fast Select, Replace or Add Data Frame Columns
logi_vars<- Fast Select, Replace or Add Data Frame Columns

-- M --

mctl Quick Data Conversion
mrtl Quick Data Conversion

-- N --

namlab Small (Helper) Functions
na_insert Small (Helper) Functions
na_omit Small (Helper) Functions
na_rm Small (Helper) Functions
num_vars Fast Select, Replace or Add Data Frame Columns
num_vars<- Fast Select, Replace or Add Data Frame Columns
nv Fast Select, Replace or Add Data Frame Columns
nv<- Fast Select, Replace or Add Data Frame Columns

-- P --

plot.GRP Fast Grouping / _collapse_ Grouping Objects
plot.psmat Matrix / Array from Panel-Series
print.descr Detailed Statistical Description of Data Frame
print.GRP Fast Grouping / _collapse_ Grouping Objects
print.pwcor Pairwise Correlations, Covariances and Observation Count
print.pwcov Pairwise Correlations, Covariances and Observation Count
print.qsu Fast (Grouped, Weighted) Summary Statistics for Cross-Sectional and Panel-Data
psacf Auto- and Cross- Covariance and -Correlation Function Estimation for Panel-Series
psacf.data.frame Auto- and Cross- Covariance and -Correlation Function Estimation for Panel-Series
psacf.default Auto- and Cross- Covariance and -Correlation Function Estimation for Panel-Series
psacf.pdata.frame Auto- and Cross- Covariance and -Correlation Function Estimation for Panel-Series
psacf.pseries Auto- and Cross- Covariance and -Correlation Function Estimation for Panel-Series
psccf Auto- and Cross- Covariance and -Correlation Function Estimation for Panel-Series
psccf.default Auto- and Cross- Covariance and -Correlation Function Estimation for Panel-Series
psccf.pseries Auto- and Cross- Covariance and -Correlation Function Estimation for Panel-Series
psmat Matrix / Array from Panel-Series
psmat.data.frame Matrix / Array from Panel-Series
psmat.default Matrix / Array from Panel-Series
psmat.pdata.frame Matrix / Array from Panel-Series
psmat.pseries Matrix / Array from Panel-Series
pspacf Auto- and Cross- Covariance and -Correlation Function Estimation for Panel-Series
pspacf.data.frame Auto- and Cross- Covariance and -Correlation Function Estimation for Panel-Series
pspacf.default Auto- and Cross- Covariance and -Correlation Function Estimation for Panel-Series
pspacf.pdata.frame Auto- and Cross- Covariance and -Correlation Function Estimation for Panel-Series
pspacf.pseries Auto- and Cross- Covariance and -Correlation Function Estimation for Panel-Series
pwcor Pairwise Correlations, Covariances and Observation Count
pwcov Pairwise Correlations, Covariances and Observation Count
pwNobs Pairwise Correlations, Covariances and Observation Count

-- Q --

qDF Quick Data Conversion
qDT Quick Data Conversion
qF Fast Factor Generation and Vector Grouping
qG Fast Factor Generation and Vector Grouping
qM Quick Data Conversion
qsu Fast (Grouped, Weighted) Summary Statistics for Cross-Sectional and Panel-Data
qsu.data.frame Fast (Grouped, Weighted) Summary Statistics for Cross-Sectional and Panel-Data
qsu.default Fast (Grouped, Weighted) Summary Statistics for Cross-Sectional and Panel-Data
qsu.matrix Fast (Grouped, Weighted) Summary Statistics for Cross-Sectional and Panel-Data
qsu.pdata.frame Fast (Grouped, Weighted) Summary Statistics for Cross-Sectional and Panel-Data
qsu.pseries Fast (Grouped, Weighted) Summary Statistics for Cross-Sectional and Panel-Data

-- R --

radixorder Fast Radix-Based Ordering
radixorderv Fast Radix-Based Ordering
rapply2d Recursively Apply a Function to a List of Data Objects
Recode Depreciated _collapse_ Functions
recode_char Recode and Replace Values in Matrix-Like Objects
recode_num Recode and Replace Values in Matrix-Like Objects
reg_elem Find and Extract / Subset List Elements
replace_Inf Recode and Replace Values in Matrix-Like Objects
replace_NA Recode and Replace Values in Matrix-Like Objects
replace_non_finite Depreciated _collapse_ Functions
replace_outliers Recode and Replace Values in Matrix-Like Objects
rm_stub Small (Helper) Functions

-- S --

sbt Fast Subsetting
select-replace-vars Fast Select, Replace or Add Data Frame Columns
seqid Generate Group-Id from Integer Sequences
seq_col Small (Helper) Functions
seq_row Small (Helper) Functions
setColnames Small (Helper) Functions
setDimnames Small (Helper) Functions
setRownames Small (Helper) Functions
settfm Fast Transform and Compute Columns on a Data Frame
settransform Fast Transform and Compute Columns on a Data Frame
slt Fast Select, Replace or Add Data Frame Columns
slt<- Fast Select, Replace or Add Data Frame Columns
ss Fast Subsetting
STD Fast (Grouped, Weighted) Scaling and Centering of Matrix-like Objects
STD.data.frame Fast (Grouped, Weighted) Scaling and Centering of Matrix-like Objects
STD.default Fast (Grouped, Weighted) Scaling and Centering of Matrix-like Objects
STD.grouped_df Fast (Grouped, Weighted) Scaling and Centering of Matrix-like Objects
STD.matrix Fast (Grouped, Weighted) Scaling and Centering of Matrix-like Objects
STD.pdata.frame Fast (Grouped, Weighted) Scaling and Centering of Matrix-like Objects
STD.pseries Fast (Grouped, Weighted) Scaling and Centering of Matrix-like Objects

-- T --

tfm Fast Transform and Compute Columns on a Data Frame
TRA Transform Data by (Grouped) Replacing or Sweeping out Statistics
TRA.data.frame Transform Data by (Grouped) Replacing or Sweeping out Statistics
TRA.default Transform Data by (Grouped) Replacing or Sweeping out Statistics
TRA.grouped_df Transform Data by (Grouped) Replacing or Sweeping out Statistics
TRA.matrix Transform Data by (Grouped) Replacing or Sweeping out Statistics

-- U --

unattrib Small (Helper) Functions
unlist2d Recursive Row-Binding / Unlisting in 2D - to Data Frame

-- V --

varying Fast Check of Variation in Data
varying.data.frame Fast Check of Variation in Data
varying.default Fast Check of Variation in Data
varying.grouped_df Fast Check of Variation in Data
varying.matrix Fast Check of Variation in Data
varying.pdata.frame Fast Check of Variation in Data
varying.pseries Fast Check of Variation in Data
vclasses Small (Helper) Functions
vlabels Small (Helper) Functions
vlabels<- Small (Helper) Functions
vtypes Small (Helper) Functions

-- W --

W Fast Between (Averaging) and Within (Centering) Transformations
W.data.frame Fast Between (Averaging) and Within (Centering) Transformations
W.default Fast Between (Averaging) and Within (Centering) Transformations
W.grouped_df Fast Between (Averaging) and Within (Centering) Transformations
W.matrix Fast Between (Averaging) and Within (Centering) Transformations
W.pdata.frame Fast Between (Averaging) and Within (Centering) Transformations
W.pseries Fast Between (Averaging) and Within (Centering) Transformations
wlddev World Development Dataset

-- misc --

%!in% Small (Helper) Functions
.COLLAPSE_ALL Collapse Documentation & Overview
.COLLAPSE_DATA Collapse Documentation & Overview
.COLLAPSE_GENERIC Collapse Documentation & Overview
.COLLAPSE_TOPICS Collapse Documentation & Overview
.FAST_FUN Fast (Grouped, Weighted) Statistical Functions for Matrix-Like Objects
.FAST_STAT_FUN Fast (Grouped, Weighted) Statistical Functions for Matrix-Like Objects
.OPERATOR_FUN Data Transformations
[.psmat Matrix / Array from Panel-Series