nobs.gsl_nls: Extract the number of observations

In gslnls: GSL Nonlinear Least-Squares Fitting

Extract the number of observations

Description

Returns the number of observations from a "gsl_nls" object.

Usage

## S3 method for class 'gsl_nls'
nobs(object, ...)

Arguments

object	An object inheriting from class "gsl_nls".
...	At present no optional arguments are used.

Value

Integer number of observations similar to nobs

See Also

nobs

Examples

## data
set.seed(1)
n <- 50
xy <- data.frame(
  x = (1:n) / n, 
  y = 2.5 * exp(-1.5 * (1:n) / n) + rnorm(n, sd = 0.1)
)
## model
obj <- gsl_nls(fn = y ~ A * exp(-lam * x), data = xy, start = c(A = 1, lam = 1))

nobs(obj)

gslnls documentation built on Jan. 17, 2023, 5:15 p.m.