plotly error bar plot 奇怪的配色方案

Question

我观察到 plotly::plot_ly 的一个奇怪选择，在指定组着色时为误差线着色：

library("data.table")
library("plotly")
dat <- data.table(
  low_diff = c(2, 3, 1)
  , high_diff = c(3, 4, 1)
  , point = c(10, 11, 9)
  , type = LETTERS[1:3]
)
plot_ly(data = dat, y = type, x = point, mode = "markers", color = type,
        error_x = list(type = "data", symmetric = FALSE,
                       array = high_diff, arrayminus = low_diff))

如何指定每个点的颜色应与其误差条相同？

Answer 1

在您有 color = type 的地方，切换到 group = type 以获得所需的分组。

plot_ly(data = dat, y = type, x = point, mode = "markers", group = type,
        error_x = list(type = "data", symmetric = FALSE,
                       array = high_diff, arrayminus = low_diff))

plotly error bar plot 奇怪的配色方案

plotly error bar plot strange color scheme

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