nObs {micEcon}R Documentation

Return number of observations for statistical models

Description

Returns number of observations for statistical models. The default method assumes presence of a component $param$nObs in {x}.

Usage

nObs(x, ...)
## Default S3 method:
nObs(x, ...)
## S3 method for class 'lm':
nObs(x, ...)

Arguments

x a statistical model, such as created by lm
... further arguments for methods

Details

This is a generic function. The default method returns the component x$param$nObs. The lm-method is based on qr-decomposition, in the same way as the does summary.lm.

Value

numeric, number of observations

Author(s)

Ott Toomet, otoomet@econ.au.dk

See Also

nParam

Examples

## Do a trivial probit example and find number of observations
x <- runif(100)
y <- x + rnorm(100) > 0
p <- probit(y ~ x)
nObs(p)

[Package micEcon version 0.3-8 Index]