param function

Extract All Parameters from a Model --- Generic Function

This function extracts all parameters (regression coefficients, variance parameters etc.) from a fitted model.

param(object, ...)

Arguments

• object: any fitted model object from which parameters may be extracted.
• ...: additional arguments like digits to control how many digits should be printed.

Details

This function is generic (see methods); method functions can be written to handle specific classes of data. Classes which already have methods for this function include: nlreg.

Returns

all parameters (regression coefficients, variance parameters etc.) of a fitted model.

See Also

param.nlreg, methods

Examples

data(metsulfuron)
metsulfuron.nl <- 
    nlreg( log(area) ~ log( b1+(b2-b1) / (1+(dose/b4)^b3) ), 
           weights = ~( 1+dose^exp(g) )^2, data = metsulfuron, 
           start = c(b1 = 138, b2 = 2470, b3 = 2, b4 = 0.07, g = log(0.3)),
           hoa = TRUE )
param( metsulfuron.nl )
##          b1           b2           b3           b4            g         logs
## 139.0395322 2471.5097481    1.7091297    0.0772535   -1.2582597   -3.8198406