在 r plotly 条形图中排序 [英] Ordering in r plotly barchart

问题描述

为什么我在 plotly 条形图中得到的顺序与我在 x 和 y 变量中定义的顺序不同.

Why do I get the different order in plotly bar chart than I defined in x and y variables.

例如

library(plotly)

plot_ly(
  x = c("giraffes", "orangutans", "monkeys"),
  y = c(20, 14, 23),
  name = "SF Zoo",
  type = "bar"
)

我需要条形图，其中我看到条形的顺序与定义 x 变量(分类)的顺序相同.有什么诀窍吗?

I need bar chart where I see bars in the same order as x variable (categorical) is defined. Is there any trick for that?

推荐答案

plotly 按字母顺序进行.如果你想改变它，只需尝试改变因子的水平.如果您以 data.frame 的形式提供数据，这将是可能的:

plotly does it in alphabetical order. If you want to change it, just try to change levels of factor. This would be possible if you give your data in the form of data.frame like here:

library(plotly)

table <- data.frame(x = c("giraffes", "orangutans", "monkeys"),
                    y = c(20, 14, 23))
table$x <- factor(table$x, levels = c("giraffes", "orangutans", "monkeys"))

plot_ly(
    data=table,
    x = ~x,
    y = ~y,
    name = "SF Zoo",
    type = "bar"
)

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