ucounts: How many times does each term in x appear?

In drmjc/mjcbase: General helper functions for dealing with \R objects/data types

Description

table does a similar job, but does not provide the option of return.unique=FALSE

Usage

ucounts(x, return.unique = TRUE, issorted = FALSE, sort = TRUE)

Arguments

x	a character vector
return.unique	logical: if TRUE, the numeric counts of the unique elements in x are returned (the names indicate the elements in x). The order of the returned elements is the same order that unique(x) returns. If FALSE, then return the numeric counts of each element in x. Useful if you then want to work out which elements have count > 1 and quickly view those elements. The order remains the same as x.
issorted	logical: to improve the speed of this code, the algorithm first sorts the data. If it's already sorted, then save time by setting issorted=FALSE.
sort	logical: whether to sort the result vector from highest counts to lowest?

Value

a vector of counts, named by the elements of x

Author(s)

Mark Cowley, 11 May 2006

Examples

ucounts(c("a", "a", "b", "c", "c"), TRUE)
# a b c
# 2 1 2
ucounts(c("a", "a", "b", "c", "c"), FALSE)
# a a b c c
# 2 2 1 2 2
ucounts(c("a", "a", "b", "c", "c"), FALSE) > 1
#	a	  a		b	  c		c
# TRUE  TRUE FALSE  TRUE	 TRUE

drmjc/mjcbase documentation built on May 15, 2019, 2:27 p.m.