我希望能够选择并复制图表中的悬停文本。 R API 可以做到这一点吗? 例如,在此热图中,将鼠标悬停在坐标(X = a,Y = d)上时,可以看到悬停文本显示:
x=a,
y=d,
z=0.71886
但是,文本不可选择。目标是例如在一个框中显示此文本(可能通过右键单击相应的单元格)以便能够将文本内容复制到剪贴板中。 任何帮助将不胜感激。
我已经能够使用以下代码提取值:
library(plotly)
m <- matrix(rnorm(9), nrow = 3, ncol = 3)
fig <- plot_ly(x = c("a", "b", "c"),
y = c("d", "e", "f"),
z = m, type = "heatmap")
x <- fig$x$attrs[[1]][[1]]
y <- fig$x$attrs[[1]][[2]]
z <- fig$x$attrs[[1]][[3]]
mat <- matrix(nrow = 9, ncol = 3)
counter <- 1
for(i in 1 : 3)
{
for(j in 1 : 3)
{
mat[counter, ] <- c(x[i], y[j], z[j, i])
counter <- counter + 1
}
}
mat
[,1] [,2] [,3]
[1,] "a" "d" "-1.24626999077972"
[2,] "a" "e" "-0.0513546366077807"
[3,] "a" "f" "0.131577832947162"
[4,] "b" "d" "0.36052924344838"
[5,] "b" "e" "-2.01674679871447"
[6,] "b" "f" "-0.0783806771351291"
[7,] "c" "d" "-1.3994093901524"
[8,] "c" "e" "-0.443892523865165"
[9,] "c" "f" "0.620093087480776"