R/g_fortify.R

In evalclass/precrec: Calculate Accurate Precision-Recall and ROC (Receiver Operator Characteristics) Curves

#
# Convert a fmdat object to a data frame for ggplot2
#
fortify.fmdat <- function(model, ...) {
  # === Check package availability  ===
  .load_ggplot2()

  # === Validate input arguments ===
  .validate(model)

  # === Prepare a data frame for ggplot2 ===
  data.frame(x = model[["labels"]], y = model[["ranks"]])
}

#
# Convert a cmats object to a data frame for ggplot2
#
fortify.cmats <- function(model, ...) {
  # === Check package availability  ===
  .load_ggplot2()

  # === Validate input arguments ===
  .validate(model)

  # === Prepare a data frame for ggplot2 ===
  n <- length(model[["ranks"]])
  data.frame(
    x = rep(seq_len(length(model[["ranks"]])), 4),
    y = c(
      model[["tp"]], model[["fn"]],
      model[["fp"]], model[["tn"]]
    ),
    group = factor(
      c(
        rep("TPs", n), rep("FNs", n),
        rep("FPs", n), rep("TNs", n)
      ),
      levels = c(
        "TPs", "FNs",
        "FPs", "TNs"
      )
    )
  )
}

#
# Convert a pevals object to a data frame for ggplot2
#
fortify.pevals <- function(model, ...) {
  # === Check package availability  ===
  .load_ggplot2()

  # === Validate input arguments ===
  .validate(model)

  # === Prepare a data frame for ggplot2 ===
  pb <- model[["basic"]]
  n <- length(pb[["error"]])
  data.frame(
    x = rep(1:n, 10),
    y = c(
      pb[["score"]], pb[["label"]],
      pb[["error"]], pb[["accuracy"]],
      pb[["specificity"]], pb[["sensitivity"]],
      1 - pb[["specificity"]], pb[["precision"]],
      pb[["mcc"]], pb[["fscore"]]
    ),
    group = factor(
      c(
        rep("score", n),
        rep("label", n),
        rep("error", n),
        rep("accuracy", n),
        rep("specificity", n),
        rep("sensitivity", n),
        rep("1 - specificity", n),
        rep("precision", n),
        rep("mcc", n),
        rep("fscore", n)
      ),
      levels = c(
        "score", "label",
        "error", "accuracy",
        "specificity",
        "sensitivity",
        "1 - specificity",
        "precision",
        "mcc",
        "fscore"
      )
    )
  )
}

#' @rdname fortify
#' @export
fortify.sscurves <- function(model, data, raw_curves = NULL, reduce_points = FALSE,
                             ...) {
  .dataframe_common(model,
    raw_curves = TRUE, reduce_points = reduce_points,
    check_ggplot = TRUE, ...
  )
}

#' @rdname fortify
#' @export
fortify.mscurves <- function(model, data, raw_curves = NULL, reduce_points = FALSE,
                             ...) {
  .dataframe_common(model,
    raw_curves = TRUE, reduce_points = reduce_points,
    check_ggplot = TRUE, ...
  )
}

#' @rdname fortify
#' @export
fortify.smcurves <- function(model, data, raw_curves = NULL, reduce_points = FALSE,
                             ...) {
  arglist <- .get_fortify_arglist(attr(model, "args"),
    def_raw_curves = raw_curves, ...
  )

  .dataframe_common(model,
    raw_curves = arglist[["raw_curves"]],
    reduce_points = reduce_points, check_ggplot = TRUE, ...
  )
}

#' @rdname fortify
#' @export
fortify.mmcurves <- function(model, data, raw_curves = NULL, reduce_points = FALSE,
                             ...) {
  arglist <- .get_fortify_arglist(attr(model, "args"),
    def_raw_curves = raw_curves, ...
  )

  .dataframe_common(model,
    raw_curves = arglist[["raw_curves"]],
    reduce_points = reduce_points, check_ggplot = TRUE, ...
  )
}

#' @rdname fortify
#' @export
fortify.sspoints <- function(model, data, raw_curves = NULL, reduce_points = FALSE,
                             ...) {
  .dataframe_common(model,
    mode = "basic", raw_curves = TRUE,
    check_ggplot = TRUE, reduce_points = FALSE, ...
  )
}

#' @rdname fortify
#' @export
fortify.mspoints <- function(model, data, raw_curves = NULL, reduce_points = FALSE,
                             ...) {
  .dataframe_common(model,
    mode = "basic", raw_curves = TRUE,
    check_ggplot = TRUE, reduce_points = FALSE, ...
  )
}

#' @rdname fortify
#' @export
fortify.smpoints <- function(model, data, raw_curves = NULL, reduce_points = FALSE,
                             ...) {
  arglist <- .get_fortify_arglist(attr(model, "args"),
    def_raw_curves = raw_curves, ...
  )

  .dataframe_common(model,
    mode = "basic", raw_curves = arglist[["raw_curves"]],
    check_ggplot = TRUE, reduce_points = FALSE, ...
  )
}

#' @rdname fortify
#' @export
fortify.mmpoints <- function(model, data, raw_curves = NULL, reduce_points = FALSE,
                             ...) {
  arglist <- .get_fortify_arglist(attr(model, "args"),
    def_raw_curves = raw_curves, ...
  )

  .dataframe_common(model,
    mode = "basic", raw_curves = arglist[["raw_curves"]],
    check_ggplot = TRUE, reduce_points = FALSE, ...
  )
}