英文:
how to create highchart with y axis with character vector
问题
我正在使用R包highcharter创建这个高图表，但它不起作用，因为y轴是字符：
这是我的代码：
library(highcharter)
library(dplyr)
hchart(
mtcars %>% rownames_to_column("rowname"),
"scatter",
hcaes(x = mpg, y = rowname),
colorByPoint = TRUE
)
我该如何创建一个类似的图表？
英文:
I am creating this chart in highchart using the R package highcharter but it’s not working because the y axis is a character:
This is my code:
library(highcharter)
library(dplyr)
hchart(
mtcars %>% rownames_to_column("rowname"),
"scatter",
hcaes(x = mpg, y = rowname),
colorByPoint = TRUE
)
How can I create a chart like this?
答案1
得分: 2
根据文档的描述，似乎在scatter图中，无法在y轴上使用分类变量。不过，一个解决方法是将一个索引映射到y，然后通过hc_yAsis设置类别标签：
library(highcharter)
library(tibble)
library(dplyr)
y_axis_categories <- rownames(mtcars)
mtcars %>%
rowid_to_column("id") %>%
mutate(id = id - 1) %>%
hchart(
"scatter",
hcaes(x = mpg, y = id),
colorByPoint = TRUE
) %>%
hc_yAxis(categories = y_axis_categories)
英文:
As far as I get it from the docs we can't have a categorical variable on the y axis in case of scatter. However, a workaround would be to map an index on y then set the category labels via hc_yAsis:
library(highcharter)
library(tibble)
library(dplyr)
y_axis_categories <- rownames(mtcars)
mtcars %>%
rowid_to_column("id") %>%
mutate(id = id - 1) |> # JS indexing starts at 0
hchart(
"scatter",
hcaes(x = mpg, y = id),
colorByPoint = TRUE
) %>%
hc_yAxis(categories = y_axis_categories)
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