Isoslides中plot_ly控制台输出无法隐藏的问题求助

以下两种方法可有效抑制plot_ly在ioslides中产生的控制台输出：

方法1：在代码块中添加message=FALSE参数 #

在rmarkdown的代码块开头设置该参数，直接屏蔽代码运行时的消息输出：

```{r message=FALSE}
plot_ly(data = mtcars, x = ~mpg, y = ~disp, z = ~hp, 
        type = "scatter3d", mode = "markers") %>%
  add_markers(color = ~cyl, colors = "Viridis",
              symbol = ~gear, size = I(5)) %>%
  layout(scene = list(xaxis = list(title = "mpg"),
                      yaxis = list(title = "disp"),
                      zaxis = list(title = "hp")),
         margin = list(l = 0, r = 0, b = 0, t = 0))

## 方法2：用`suppressMessages()`包裹plot_ly调用
如果不想修改代码块参数，直接用该函数包裹整个plot_ly代码逻辑，抑制所有消息输出：
```r
suppressMessages(
  plot_ly(data = mtcars, x = ~mpg, y = ~disp, z = ~hp, 
          type = "scatter3d", mode = "markers") %>%
    add_markers(color = ~cyl, colors = "Viridis",
                symbol = ~gear, size = I(5)) %>%
    layout(scene = list(xaxis = list(title = "mpg"),
                        yaxis = list(title = "disp"),
                        zaxis = list(title = "hp")),
           margin = list(l = 0, r = 0, b = 0, t = 0))
)

原理说明：plot_ly生成的是HTML Widget对象，在ioslides渲染过程中默认会输出初始化相关的消息，上述两种方法都能屏蔽这类不必要的控制台信息。

内容的提问来源于stack exchange，提问作者Ivan Anderies