Nothing

```
#' @export
#' @rdname kernelfun
#'
#' @examples
#' kernel_properties("gaussian")
#'
kernel_properties <-
function(name,
derivative = FALSE)
{
name <- match.arg(tolower(name), .kernelsList())
canonical_bandwidth <- switch(name,
biweight = 5 * sqrt(7)/49,
chernoff = NA_real_,
cosine = 3/4 * sqrt(1/3 - 2/pi^2),
eddy = NA_real_,
epanechnikov = 3/(5 * sqrt(5)),
gaussian = 1/(2 * sqrt(pi)),
optcosine = sqrt(1 - 8/pi^2) * pi^2/16,
rectangular = sqrt(3)/6,
triangular = sqrt(6)/9,
uniform = NA_real_)
canonical_bandwidth_deriv <- NA_real_
fac <- switch(name,
biweight = 2 * sqrt(7),
chernoff = NA,
cosine = 2/sqrt(1/3 - 2/pi^2),
eddy = NA,
epanechnikov = 2 * sqrt(5),
gaussian = 4,
optcosine = 2/sqrt(1 - 8/pi^2),
rectangular = 2 * sqrt(3),
triangular = 2 * sqrt(6),
uniform = NA)
fac_deriv <- NA_real_
integral_K <- switch(name,
biweight = 1,
chernoff = 1,
cosine = 1,
eddy = 1,
epanechnikov = 1,
gaussian = 1,
optcosine = 1,
rectangular = 1,
triangular = 1,
uniform = 1)
integral_K_deriv <- switch(name,
biweight = NA,
chernoff = 0,
cosine = 0,
eddy = 0,
epanechnikov = 0,
gaussian = 0,
optcosine = 0,
rectangular = 0,
triangular = 0,
uniform = 0)
integral_K2 <- switch(name,
biweight = 1/2,
chernoff = 1/2,
cosine = (3/4)*sqrt(1/3 - 2/pi^2),
eddy = 1.25,
epanechnikov = 3/5,
gaussian = 1/(2*sqrt(pi)),
optcosine = (pi^2/16)*sqrt(1 - 8/pi^2),
rectangular = 1/2,
triangular = 2/3,
uniform = 1/2)
integral_K2_deriv <- switch(name,
biweight = 15/(49*sqrt(7)),
chernoff = 0,
cosine = (pi^2/4)*(sqrt(1/3 - 2/pi^2))^3,
eddy = 9.375,
epanechnikov = 3/2,
gaussian = 0.1410474,
optcosine = (pi^4/64)*(sqrt(1 - 8/pi^2))^3,
rectangular = 0,
triangular = 2,
uniform = 0)
continuity <- switch(name,
biweight = Inf,
chernoff = 0,
cosine = Inf,
eddy = 1,
epanechnikov = 1,
gaussian = Inf,
optcosine = 1,
rectangular = 0,
triangular = 1,
uniform = 0)
continuity_deriv <- switch(name,
biweight = Inf,
chernoff = Inf,
cosine = Inf,
eddy = 0,
epanechnikov = 0,
gaussian = Inf,
optcosine = 0,
rectangular = Inf,
triangular = 0,
uniform = Inf)
differentiability <- switch(name,
biweight = Inf,
chernoff = 0,
cosine = Inf,
eddy = 0,
epanechnikov = 0,
gaussian = Inf,
optcosine = 0,
rectangular = 0,
triangular = 0,
uniform = 0)
differentiability_deriv <- switch(name,
biweight = Inf,
chernoff = Inf,
cosine = Inf,
eddy = 0,
epanechnikov = 0,
gaussian = Inf,
optcosine = 0,
rectangular = Inf,
triangular = 0,
uniform = Inf)
if (derivative) {
list(canonical_bandwidth = canonical_bandwidth_deriv,
continuity = continuity_deriv,
differentiability = differentiability_deriv,
fac = fac_deriv,
integral_K = integral_K_deriv,
integral_K2 = integral_K2_deriv,
name = name,
derivative = derivative)
} else {
list(canonical_bandwidth = canonical_bandwidth,
continuity = continuity,
differentiability = differentiability,
fac = fac,
integral_K = integral_K,
integral_K2 = integral_K2,
name = name,
derivative = derivative)
}
}
```

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