我如何获取行值而不是行名

Question

我有以下代码，但它不起作用

df <- data.frame (
  Bikes = c("Canyon", "Santa", "Radon"),
  Tretlage = c(1,1,3),
  Kurbel = c(2,3,4),
  Winkel = c(4,5,3)
)


plot_ly(
      type = 'scatterpolar',
      mode = "closest",
      fill = 'toself'
    ) %>%
      add_trace(
        r = df[1,],
        theta = c("Tretlage", "Kurbel","Winkel"),
        showlegend = TRUE,
        mode = "markers",
        name = df[1,1]
)

而不是像

这样每个数字都输入 r

r = c(1,2,4)

我想像“df”这样输入，它会自动获取值，但不知何故这并没有发生。有人知道为什么吗？

它应该是这样的：if r = c(1,2,4)

Answer 1

一个选项是使用 for 循环

p1 <- plot_ly(
  type = 'scatterpolar',
  mode = "closest",
  fill = 'toself'
)

for(i in seq_len(nrow(df))) {
     p1 <- p1  %>%
             add_trace(
           r = unlist(df[i,-1]),
           theta = c("Tretlage", "Kurbel","Winkel"),
        showlegend = TRUE,
        mode = "markers",
        name = df[i,1]
      )
  }

p1

-输出

我如何获取行值而不是行名

How do i get the row values instead of the row names

r

r-plotly