bootPaired: Bootstrap paired data

Description Usage Arguments Details Value Methods (by class) Author(s) References Examples

View source: R/bootPaired.R

Description

Perform a bootstrap of two paired variables.

Usage

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bootPaired(x, ...)

## Default S3 method:
bootPaired(x, y, conf.level = 0.95, B = 10000,
  plot.hist = TRUE, plot.qq = FALSE, legend.loc = "topright",
  x.name = deparse(substitute(x)), y.name = deparse(substitute(y)),
  ...)

## S3 method for class 'formula'
bootPaired(formula, data, subset, ...)

Arguments

x

a numeric vector.

...

further arguments to be passed to or from methods.

y

a numeric vector.

conf.level

confidence level for the bootstrap percentile interval.

B

number of resamples (positive integer greater than 2).

plot.hist

logical. If TRUE, plot the histogram of the bootstrap distribution.

plot.qq

logical. If TRUE, a normal quantile-quantile plot of the replicates will be created.

legend.loc

location for the legend on the histogram. Options are "topright" "topleft", "bottomleft" and "bottomright".

x.name

Label for variable x

y.name

Label for variable y

formula

a formula y ~ x where x, y are both numeric vectors

data

a data frame that contains the variables given in the formula.

subset

an optional expression indicating what observations to use.

Details

The command will compute the difference of x and y and bootstrap the difference. The mean and standard error of the bootstrap distribution will be printed as well as a bootstrap percentile interval.

Observations with missing values are removed.

Value

The command invisibly returns a vector with the replicates of the statistic being bootstrapped.

Methods (by class)

Author(s)

Laura Chihara

References

Tim Hesterberg's website http://www.timhesterberg.net/bootstrap

Examples

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#Bootstrap the mean difference of fat content in vanilla and chocolate ice
#cream. Data are paired becaues ice cream from the same manufacturer will
#have similar content.
Icecream
bootPaired(ChocFat ~ VanillaFat, data = Icecream)
bootPaired(Icecream$VanillaFat, Icecream$ChocFat)

CarletonStats documentation built on Aug. 10, 2018, 1:14 a.m.