集成ggplot（）與操作（）採摘

Question

我想結合ggplot和操作是這樣的：

library(ggplot2);library(manipulate) 

manipulate(
    ggplot(diamonds, aes(x = type, y = price)) + 
    geom_point(alpha = 1/10) + 
    geom_smooth(method = lm) 
    type = picker("carat","depth","table") 
) 

（其中操縱功能將改變X輸入，picker）

但我正在一個Error: unexpected ')' in ")"

---

編輯1：固定的語法錯誤（請參見：({ ... )},）

manipulate({ 
    ggplot(diamonds, aes(x = type, y = price)) + 
    geom_point(alpha = 1/10) + 
    geom_smooth(method = lm)}, 
    type = picker("carat","depth","table") 
) 

現在我越來越Don't know how to automatically pick scale for object of type manipulator.picker. Defaulting to continuous Error: Aesthetics must either be length one, or the same length as the dataProblems:type

Answer 1

由於選擇器返回"carat"而不是carat，你應該使用aes_string，而不是aes。

manipulate(
    ggplot(diamonds, aes_string(x = type, y = "price")) + 
    geom_point(alpha = 1/10) + 
    geom_smooth(method = lm), 
    type = picker("carat","depth","table") 
)