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gdata (version 2.16.1)

Various R Programming Tools for Data Manipulation

Description

Various R programming tools for data manipulation, including: - medical unit conversions ('ConvertMedUnits', 'MedUnits'), - combining objects ('bindData', 'cbindX', 'combine', 'interleave'), - character vector operations ('centerText', 'startsWith', 'trim'), - factor manipulation ('levels', 'reorder.factor', 'mapLevels'), - obtaining information about R objects ('object.size', 'elem', 'env', 'humanReadable', 'is.what', 'll', 'keep', 'ls.funs', 'Args','nPairs', 'nobs'), - manipulating MS-Excel formatted files ('read.xls', 'installXLSXsupport', 'sheetCount', 'xlsFormats'), - generating fixed-width format files ('write.fwf'), - extricating components of date & time objects ('getYear', 'getMonth', 'getDay', 'getHour', 'getMin', 'getSec'), - operations on columns of data frames ('matchcols', 'rename.vars'), - matrix operations ('unmatrix', 'upperTriangle', 'lowerTriangle'), - operations on vectors ('case', 'unknownToNA', 'duplicated2', 'trimSum'), - operations on data frames ('frameApply', 'wideByFactor'), - value of last evaluated expression ('ans'), and - wrapper for 'sample' that ensures consistent behavior for both scalar and vector arguments ('resample').

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Version

Install

install.packages('gdata')

Monthly Downloads

35,263

Version

2.16.1

License

GPL-2

Maintainer

the of this package were written by Gregory R. Warnes

Last Published

May 1st, 2015

Functions in gdata (2.16.1)

Remove or rename variables in a dataframe

Defunct Functions in Package 'gdata'

Read Excel files

Print Byte Size in Human Readable Format

List function objects

Determine Duplicate Elements

Run Multiple is.* Tests on a Given Object

Count or list sheet names in Excel spreadsheet files.

Change unknown values to NA and vice versa

Number of variable pairs

Column-bind objects with different number of rows

Remove All Objects, Except Those Specified

Write object in fixed width format

Extract or replace the upper/lower triangular portion of a matrix

Trim a vector such that the last/first value represents the sum of trimmed values

Determine if a character string "starts with" with the specified characters.

Table of conversions between Intertional Standard (SI) and US 'Conventional' Units for common medical measurements.

Report the Space Allocated for Objects

Check which file formats are supported by read.xls

Compute the Number of Non-missing Observations

Reorder the Levels of a Factor

Bind two data frames into a multivariate data frame

Get date/time parts from date and time objects

Convert a matrix into a vector, with appropriate names

installXLSXsupport

Install perl modules needed for read.xls to support Excel 2007+ XLSX format

Describe Function Arguments

Create multivariate data by a given factor

Center Text Strings

Drop unused factor levels

ConvertMedUnits

Convert medical measurements between International Standard (SI) and US 'Conventional' Units.

Value of Last Evaluated Expression

Display Information about Elements in a Given Object

Describe Objects or Elements

Remove leading and trailing spaces from character strings

Consistent Random Samples and Permutations

Map elements of a vector according to the provided 'cases'

Various R programming tools for data manipulation

Return the leftmost or rightmost columns of a matrix or dataframe

Combine R Objects With a Column Labeling the Source

Subset analysis on data frames

Describe All Loaded Environments

Return first or last element of an object

Interleave Rows of Data Frames or Matrices

Select columns names matching certain critera