03-results-01.Rmd 469 Bytes
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# Results {#results-1}

First results chapter.

(ref:mpg-plot) Car engine size versus fuel efficiency. The mpg data contains observations collected by the US Environmental Protection Agency on 38 models of car. 

```{r mpg,echo=FALSE,fig.cap ='(ref:mpg-plot)', fig.scap='Car engine size versus fuel efficiency',out.extra='',fig.align='center',cache=TRUE,warning=FALSE,fig.pos="H"}
ggplot(data = mpg) + 
  geom_point(mapping = aes(x = displ, y = hwy, color = class))
```