eeptools (version 1.2.5)

thresh: A function to return the maximum percentage of the cumulative sum represented by a subset of the vector

Description

Returns the proportion of the cumulative sum represented by the number of elements in the vector a user specifies. This allows the user to identify the maximum proportion of the total that only X number of elements may represent in the vector.

Usage

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

Value

A numeric proportion

Arguments

x

a numeric vector, missing values are allowed

cutoff

numeric, the number of elements to look at

na.rm

logical, should missing values be excluded?

Author

Jared E. Knowles

Details

Calculates the proportion of a numeric vector reached after sorting the vector in ascending order and stopping at the specified count

See Also

cutoff which this function is related to

Examples

# for vector
a <- rnorm(100, mean=6, sd=1)
thresh(a, 8) #return minimum number of elements to account 70 percent of total