rss {model4you}

Residual sum of squares

Description

Returns the sum of the squared residuals for a given object.

Usage

rss(object, ...)

## Default S3 method:
rss(object, ...)

Arguments

object

model object.

...

passed on to specific methods.

Value

sum of the squared residuals.

Examples

## example from ?lm
ctl <- c(4.17,5.58,5.18,6.11,4.50,4.61,5.17,4.53,5.33,5.14)
trt <- c(4.81,4.17,4.41,3.59,5.87,3.83,6.03,4.89,4.32,4.69)
group <- gl(2, 10, 20, labels = c("Ctl","Trt"))
weight <- c(ctl, trt)
lm.D9 <- lm(weight ~ group)
rss(lm.D9)