On plotting in HTML5 slides with knitr

Question

Here is my problematic slide:

The plain text for this slide is

# Title
```{r plot, echo=FALSE}
library("ggplot2")
x <- seq(-1,1,0.05)
y <- x^3/3-x^2 + rnorm(41,sd=0.1)
qplot(x,y)+geom_smooth()
```
- item 1
- item 2

And I want to：

1. Hide the comment text (## blahblah)
2. Hide the text "plot of chunk plot"
3. Make the plot smaller, so that the items can be shown

Could you please give me some hints? Thank you.

Answer 1

You should take time to read the wonderful documentation provided for knitr .

Without knowing your work flow to create the slides it is hard answer from the html5 end.

You are looking for fig.width , fig.height , fig.cap , warning and message from the knitr chunk options.

```{r plot, echo=FALSE,fig.width = 3, fig.height = 3,  fig.cap = '', warning = FALSE, message = FALSE, cache = FALSE}
library("ggplot2")
x <- seq(-1,1,0.05)
y <- x^3/3-x^2 + rnorm(41,sd=0.1)
qplot(x,y)+geom_smooth()
```
- item 1
- item 2

You will have to adjust the height and width to get the size that is suitable for slides