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#' Computes statistics from a vector of of values.
#'
#' E.g. computes features from distribution of distances.
#' Computed statistics: min, median, mean, max, sd, span, coeff_of_var.
#'
#' @param x [\code{numeric}]\cr
#' Numeric vector.
#' @param name [\code{numeric}]\cr
#' Prefix name for elements in result list.
#' @param na.rm [\code{logical(1)}]\cr
#' Should NAs in \code{x} be removed?
#' Default is \code{TRUE}.
#' @return [\code{list}]
#' Elements are named <name_statistic>.
#' @export
numvec_feature_statistics = function(x, name, na.rm = TRUE) {
xmin = min(x, na.rm = na.rm)
xmax = max(x, na.rm = na.rm)
xmean = mean(x, na.rm = na.rm)
xsd = sd(as.numeric(x), na.rm = na.rm)
f = list(
min = xmin,
median = median(x, na.rm = na.rm),
mean = xmean,
max = xmax,
sd = xsd,
span = xmax - xmin,
coef_of_var = xsd / xmean
)
setNames(f, paste(name, names(f), sep="_"))
}
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