climdex.pcic (version 0.6-2)

get.series.lengths.at.ends: Get series length at ends

Description

This function takes a series of boolean values and returns a list of integers of the same length corresponding to the lengths at the ends of sequences of TRUE values.

Usage

get.series.lengths.at.ends(x, na.value=FALSE)

Arguments

x

Sequence of booleans.

na.value

Value to replace NAs with.

Value

• A vector consisting of the lengths of sequences of TRUE values at the location of the last TRUE value in the sequence, and zeroes elsewhere.

Details

It can often be useful to know how long a series of boolean values is. This function provides a method of knowing where and how long such sequences are.

Examples

## Get lengths of sequences of TRUE values in a sequence
series.lengths <- get.series.lengths.at.ends(c(TRUE, TRUE, TRUE, FALSE, TRUE, FALSE, TRUE, TRUE,
TRUE, TRUE, FALSE))