绘制图例以显示/隐藏所有绘图字符 [英] Plotly legend entry to show/hide all plotting characters

问题描述

假设我正在构建一个散点图，该散点图显示三个不同的组(在此由颜色指定).通过单击图例中的组，我可以分别显示/隐藏每个组.

Suppose I am building a plotly scatterplot that displays three different groups (here specified by colour). I can show/hide each group individually by clicking at the groups in the legend.

library(ggplot2)
library(plotly)
d <- data.frame("a" = sample(1:50, 20, T), "b" = sample(1:50, 20, T), 
                        "col" = factor(sample(1:3, 20, T)))
        gg <- ggplot() + geom_point(aes(x = a, y = b, color = col), data = d)
        gg

plotly_build(gg)

是否可以在图例中添加按钮以显示/隐藏所有点?

Is there a way to add a button to the legend to show/hide all points ?

推荐答案

我不知道一种同时切换所有点的方法，但是(如评论中所述，这将是一个合适的选择)，可以首先将它们全部隐藏起来，然后一次显示一个点

I don't know of a way to toggle all points simultaneously, but (as indicated in the comments that this would be a suitable alternative) it is possible to start with them all hidden and make points visible one at a time

plot_ly(data=d, x=a, y=b, type='scatter', mode='markers', color=col, visible='legendonly') 

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