#' @import ggplot2
#' @import reticulate
#' @import markdown
#' @importFrom utils browseURL
#' @importFrom methods is
#' @importFrom graphics barplot
#' @importFrom phyloseq otu_table phyloseq distance
#' @importFrom vegan vegdist
#' @importFrom corrplot corrplot
#' @importFrom psych tr
#' @importFrom stats reorder quantile median as.dist
#' @importFrom quadprog solve.QP
#' @importFrom LDRTools Pdist O2P
#' @importFrom Matrix forceSymmetric
#' @exportS3Method plot kernel.pca
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