0

平均値を表示したいプロットを作成しています。平均値とそれに対応する値の両方を表示することができましたが、平均値が投入されてプロットが雑然としすぎていることがわかりましたggrepel::geom_label_repel。データポイント。うまくいかないことを試してみましたが、望ましい結果を得る方法を誰かが理解するのを手伝ってくれれば幸いです。ありがとう。

library(ggplot2)
#> Warning: package 'ggplot2' was built under R version 3.4.3
library(ggrepel)
#> Warning: package 'ggrepel' was built under R version 3.4.2


# function to plot mean
fun_mean <- function(x) {
  return(data.frame(
    y = as.numeric(as.character(mean(x, na.rm = TRUE))),
    label = as.numeric(as.character(mean(x, na.rm = TRUE)))
  ))
}

# preparing the basic plot
plot <-
  ggplot2::ggplot(data = iris,
                  mapping = aes(x = Species, y = Sepal.Length)) +
  geom_point(
    position = position_jitterdodge(
      jitter.width = NULL,
      jitter.height = 0.2,
      dodge.width = 0.75
    ),
    alpha = 0.5,
    size = 3,
    aes(color = factor(Species))
  ) +
  geom_violin(width = 0.5,
              alpha = 0.2,
              fill = "white") +
  geom_boxplot(
    width = 0.3,
    alpha = 0.2,
    fill = "white",
    outlier.colour = "black",
    outlier.shape = 16,
    outlier.size = 3,
    outlier.alpha = 0.7,
    position = position_dodge(width = NULL)
  ) +
  theme(legend.position = "none")


# add the mean label to the plot
plot <- plot +
  stat_summary(
    fun.y = mean,
    geom = "point",
    colour = "darkred",
    size = 5
  ) +
  stat_summary(
    fun.data = fun_mean,
    geom = "text",
    vjust = -1.0,
    size = 5
  )

# see the plot
plot


# adding geom_label_repel
plot <-
  plot +
  ggrepel::geom_label_repel(
    mapping = aes(label = mean),
    fontface = 'bold',
    color = 'black',
    inherit.aes = FALSE,
    max.iter = 3e2,
    box.padding = 0.35,
    point.padding = 0.5,
    segment.color = 'grey50',
    force = 2
  )

plot # doesn't work :(
#> Don't know how to automatically pick scale for object of type function. Defaulting to continuous.
#> Error in (function (..., row.names = NULL, check.rows = FALSE, check.names = TRUE, : arguments imply differing number of rows: 0, 150

reprex パッケージ(v0.1.1.9000)によって 2018-02-10 に作成されました。

4

1 に答える 1