AgreementInterval (version 0.1.1)

plot.ai: plot.ai

Description

The plot method for ai objects

Usage

# S3 method for ai
plot(x, clin.limit = NA, which = 1:4, ...)

Arguments

x

ai object from ai function

clin.limit

Clinically meaningful lower and upper limit

which

Index parameter to control which plot to output, by default, all four plots will be outputed.

...

Additional arguments to be passed to the round function and to control number of decimals in the display.

Value

Function plot.ai returns 2 by 2 plots (See details)

Details

The four plots include 1) scatterplot of raw data with regression line from the measurement error model, 2) Difference between two measurement methods with original average interval determined by alpha and clinically meaningful lower and upper limit, 3) Difference between two measurement methods with average interval adjusted for fixed bias, as well as 4) Sorted difference bewteen two measurement methods with average interval adjusted for total bias.

References

Jason J. Z. Liao, Quantifying an Agreement Study, Int. J. Biostat. 2015; 11(1): 125-133

Examples

# NOT RUN {
a <- c(1, 2, 3, 4, 7)
b <- c(1, 3, 2, 5, 3)
ans <- ai(x=a, y=b)
plot(x=ans)
plot(x=ans, clin.limit=c(-5, 5))
# }