- [R降价演示不加载/渲染交互式Plotly图表

Question

我使用Plotly with R创建将在R Markdown Presentation With Ioslides呈现的图表，而是，示出像下面the demo chart from the website：

据渲染步骤是这样的：

我的代码非常简单：

--- 
title: "R Markdown Presentation & Plotly" 
author: "Eduardo Almeida" 
date: "February 19, 2017" 
output: ioslides_presentation 
--- 

```{r setup, include=FALSE} 
knitr::opts_chunk$set(echo = FALSE) 
``` 

## Interactive plot with Plotly 

```{r} 
library(plotly) 
p <- plot_ly(economics, x = ~date, y = ~unemploy/pop) 
``` 

Answer 1

由于KARTHIK Arumugham指出你需要显示的情节，无论是通过输入p或不分配plot_ly变量，但直接调用它。

我建议明确指出缺少的变量（type='scatter', mode='markers'），而不是抑制输出消息。此外，您可以添加{r, warning=F}以摆脱

Error: attempt to use zero-length variable name

消息。

--- 
title: "R Markdown Presentation & Plotly" 
author: "Eduardo Almeida" 
date: "February 19, 2017" 
output: ioslides_presentation 
--- 

```{r setup, include=FALSE} 
knitr::opts_chunk$set(echo = FALSE) 
``` 

## Interactive plot with Plotly 

```{r, warning=F} 
suppressPackageStartupMessages({library(plotly)}) 
library(plotly) 
plot_ly(economics, x = ~date, y = ~unemploy/pop, type='scatter', mode='markers') 
```