SiZer (version 0.1-8)

Arkansas: Time Series of Macroinvertabrates Abundance in the Arkansas River.

Description

A time series of 16 years (5 replicates per year) of mayfly (Ephemeroptera:Heptageniidae) abundance in the fall at the monitoring station AR1 on the Arkansas River in Colorado, USA.

Usage

data(Arkansas, package='SiZer')

Format

A data frame with 90 observations on the following 2 variables.

year

The year of observation

sqrt.mayflies

The Square root of observed abundance.

Examples

require(ggplot2)

data(Arkansas)
ggplot(Arkansas, aes(x=year, y=sqrt.mayflies)) + 
   geom_point()