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77 lines
1.9 KiB
77 lines
1.9 KiB
# #' Two-way bar chart
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# #'
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# #' @inheritParams ggplot2::geom_bar
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# #' @export
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# geom_twoway_bar <- function(mapping = NULL, data = NULL,
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# stat = "identity",
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# width = NULL,
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# ...,
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# na.rm = FALSE,
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# show.legend = NA,
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# inherit.aes = TRUE) {
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#
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# layer(
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# data = data,
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# mapping = mapping,
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# stat = stat,
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# geom = GeomTwowayBar,
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# position = "stack",
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# show.legend = show.legend,
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# inherit.aes = inherit.aes,
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# params = list(
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# width = width,
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# na.rm = na.rm,
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# ...
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# )
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# )
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# }
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#
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# #' @rdname ggalt-ggproto
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# #' @format NULL
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# #' @usage NULL
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# #' @export
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# GeomTwowayBar <- ggproto("GeomTwowayBar", GeomRect,
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# required_aes = c("x", "y"),
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#
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# do_setup_data = function(data, params) {
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# data$width <- data$width %||%
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# params$width %||% (resolution(data$x, FALSE) * 0.9)
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#
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# d_plus <- subset(data, y>=0, drop=FALSE)
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# d_minus <- subset(data, y<0, drop=FALSE)
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#
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# d_plus <- transform(d_plus,
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# ymin = pmin(y, 0), ymax = pmax(y, 0),
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# xmin = x - width / 2, xmax = x + width / 2, width = NULL,
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# is_plus = TRUE
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# )
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#
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# d_minus <- transform(d_minus,
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# ymin = pmin(y, 0), ymax = pmax(y, 0),
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# xmin = x - width / 2, xmax = x + width / 2, width = NULL,
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# y = abs(y),
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# is_plus = FALSE
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# )
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#
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# cat("setup_data() after _________\n")
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# print(rbind(d_plus, d_minus))
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#
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# rbind(d_plus, d_minus)
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#
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# },
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#
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# draw_panel = function(self, data, panel_scales, coord, width=NULL) {
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#
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# cat("draw_panel() _________\n")
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# print(data)
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# #
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# # d_plus <- subset(data, is_plus)
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# # d_minus <- subset(data, !is_plus)
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# # d_minus$y <- -d_minus$y
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#
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# gList(
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# ggplot2::ggproto_parent(GeomBar, self)$draw_panel(data, panel_scales, coord)
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# )
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# }
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# )
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#
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