The common package is set of useful functions that enhance base R. These functions make up for some deficiencies in the base package. For example, there are functions to sort a data frame by multiple columns, and manipulate data frame labels. These are common activities, and can be used in almost any R program.
The functions included in the common package are as follows:
v: A generalized NSE quoting function.
sort.data.frame: An overload of the sort
function for data frames.
labels.data.frame: An overload of the labels function
for data frames.
%p%: An infix operator for
%eq%: An enhanced equality infix operator.
roundup: A rounding function that matches SAS® software.
Sys.path: A function to return the path of the current program.
file.find: A function to search for a file on the file system.
dir.find: A function to search for directories on the file system.
find.names: A function to search for variable names on a data frame.
copy.attributes: A function to copy column attributes from one data
frame to another.
spaces: A function to create a string of blank spaces.
supsc: A function to get UTF-8 superscript characters.
subsc: A function to get UTF-8 subscript characters.
symbol: A function to get UTF-8 symbol characters.
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