eeptools (version 1.2.2)

cutoff: A function to calculate thresholds of cumulative sums in a vector.

Description

This function tells us how far we have to go before reaching a cutoff in a variable by sorting the vector, then finding how far to go. Note that the cutoff is expressed in percentage terms (fixed cumulative sum)

Usage

cutoff(x, cutoff, na.rm = TRUE)

Arguments

x

a numeric vector, missing values are allowed

cutoff

a user defined numeric value to stop the cutoff specified as a proportion 0 to 1

na.rm

logical, should missing values be excluded?

Value

An integer for the minimum number of elements necessary to reach cutoff

Details

Calculates the distance through a numeric vector before a certain proportion of the sum is reached by sorting the vector and calculating the cumulative proportion of each element

Examples

# NOT RUN {
# for vector
a <- rnorm(100, mean=6, sd=1)
cutoff(a, .7) #return minimum number of elements to account 70 percent of total

# }