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gmm (version 1.3-0)

kweights2: Kernel Weights

Description

Kernel weights for kernel-based heteroskedasticity and autocorrelation consistent (HAC) covariance matrix estimators as introduced by Andrews (1991). This function comes from the sandwich package.

Usage

kweights2(x, kernel = c("Truncated", "Bartlett", "Parzen",
  "Tukey-Hanning", "Quadratic Spectral"), normalize = FALSE)

Arguments

x
numeric.
kernel
a character specifying the kernel used. All kernels used are described in Andrews (1991).
normalize
logical. If set to TRUE the kernels are normalized as described in Andrews (1991).

Value

  • Value of the kernel function at x.

References

Andrews DWK (1991), Heteroskedasticity and Autocorrelation Consistent Covariance Matrix Estimation. Econometrica, 59, 817--858.