如何在使用 R（包：plotly）的绘图中查看我用 "size = " 指定的变量的值

Question

我想使用 R 中的 plotly 包生成一个交互式图。我想要一个散点图，其中每个点都根据它们的连续值“确定大小”。我的情节确实显示了大小点，但当我将鼠标悬停在它们上面时，它并没有显示它们的值。可重现的代码：

library(plotly)
plot_ly(data = mtcars,
        x = ~ wt, y = ~ mpg, color = ~factor(cyl),
        mode = "markers", type = "scatter", size = ~hp)
Warning messages:
1: `line.width` does not currently support multiple values. 
2: `line.width` does not currently support multiple values. 
3: `line.width` does not currently support multiple values.

我想要的是当我到达一个特定点时，我想交互地查看它除了大小之外还有哪个“hp”值。

Answer 1

您可以将 , text = ~hp 添加到 plot_ly window 并使用 this link

格式化它

例如

library(plotly)
plot_ly(data = mtcars,
        x = ~ wt, y = ~ mpg, color = ~factor(cyl),
        mode = "markers", type = "scatter", size = ~hp, 
        text = ~hp, 
        hovertemplate = paste("Values: %{x}, %{y}<br>", 
                              "Size: %{text}")
)

如何在使用 R（包：plotly）的绘图中查看我用 "size = " 指定的变量的值

How can I see the values of a variable that I specified with "size = " in a plotly plot using R (package: plotly)

r

scatter-plot

ggplot2

plotly

r-plotly