Function to show how the power to detect change varies with the error rate.

Function to show how the power to detect change varies with the error rate.

Usage

powerPlot(power.object)

Arguments

power.object

An object of class gamMRSea.power

Value

Plot showing how the power to detect change varies with increasing error rate. The first grey dashed line is at 1% and the second at 5%, traditionally values used as p-value cutoffs. The blue dashed lines indicate the error rate required to get a power of 80%. This value is given in the title.

Author

LAS Scott-Hayward

Examples

# Load two power objects that were created with a 20% sitewide decline
# 50 simulations were run
data(nysted.power.oc)
data(nysted.power.oc.null)

powerPlot(nysted.power.oc)