pesticides (version 0.1)

apple: Pesticide residue measurements for apples

Description

An abbreviated data set of appleAll data set. This data was collected by the USDA Pesticide Data Program and used to estimate the ICC for pesticides on apples.

Usage

data(apple)

Format

A data frame with 1134 observations on the following 6 variables.

pesticide

The pesticide measured.

comp

Measured composite residue.

ss

Measured single item residue.

lod

Minimum level of detection.

items

Number of items per composite.

sampID

Sample ID.

Source

United States Deparatment of Agriculture Pesticide Data Program.

Examples

data(apple)
these <- apple$pesticide == apple$pesticide[1]
r     <- cor(apple$comp[these], apple$ss[these])
cor2icc(r, 10,"within")