| lm.simpleboot.methods {simpleboot} | R Documentation |
Methods for linear model bootstrap.
Description
Methods for "lm.simpleboot" class objects.
Usage
## S3 method for class 'lm.simpleboot'
summary(object, ...)
## S3 method for class 'summary.lm.simpleboot'
print(x, ...)
## S3 method for class 'lm.simpleboot'
fitted(object, ...)
Arguments
object |
An object of class |
x |
An object of class |
... |
Other arguments passed to and from other methods. |
Details
print is essentially the same as the usual
printing of a linear model fit, except the bootstrap standard errors
are printed for each model coefficient.
fitted returns the fitted values from each
bootstrap sample for the predictor values specified by the
new.xpts in lm.boot (or from the grid if new.xpts
was not specified). This is a p x R matrix where p is the number of
points where prediction was desired and R is the number of bootstrap
samples specified. Using fitted is the equivalent
of using samples(object, name = "fitted").
Value
summary returns a list containing the original
estimated coefficients and their bootstrap standard errors.
Author(s)
Roger D. Peng
See Also
lm.boot.
Examples
data(airquality)
attach(airquality)
lmodel <- lm(Ozone ~ Wind + Solar.R)
lboot <- lm.boot(lmodel, R = 300)
summary(lboot)