sfactor2bw: Convert scale factors to bandwidths

In micEconNP: Microeconomic Analysis with Non-Parametric Methods

Description

Convert scale factors (relative measures of bandwidths) to (absolute) bandwidths.

Usage

   sfactor2bw( sfactor, varNames, data, order = 2, pre0.60 = FALSE )

Arguments

sfactor	a vector of scale factors of the explanatory variables.
varNames	a vector of the names of the explanatory variables.
data	data.frame with the that includes the explanatory variables.
order	order of the kernel for continuous explanatory variables.
pre0.60	logical. If FALSE (default), the conversion is done by the formula that is used in the np package version 0.60 or later. If TRUE, the conversion is done by the formula that is used in the np package before version 0.60.

Value

A vector of bandwidths.

Author(s)

Arne Henningsen

See Also

npreg.

Examples

   data( "oecdpanel" )
   
   oecdpanel$yearFactor <- factor( oecdpanel$year )
   npModel <- npreg( growth ~ yearFactor + initgdp, 
      regtype = "ll", gradients = TRUE, data = oecdpanel )
   
   all.equal( npModel$bws$bw,
      sfactor2bw( npModel$bws$sfactor$x, c( "yearFactor", "initgdp" ),
         data = oecdpanel ) )

micEconNP documentation built on May 2, 2019, 6:30 p.m.