grid.layout in ggplot

Question

I\'m using the following code to create three sets of plots in the amazing package ggplot2:

w<-rnorm(100)
x<-rnorm(100)
y<-rnorm(100)
z<-rnorm(10         


        

Answer 1

If you use markdown, use fig.height in each code chunk for each plot:

```{r pw, fig.height = 2.66, echo = F}
pw
```
```{r px, fig.height = 2.66, echo = F}
px
```
```{r pz, fig.height = 2.66, echo = F}
pz
```

Answer 2

You'll probably have a better time using grid.arrange(), from the gridExtra package:

p1 <- pw + geom_point() + facet_grid(.~g, scales='fixed') + coord_equal() +   
      stat_smooth(method='lm')
p2 <- px + geom_point() + facet_grid(.~g, scales='fixed') + coord_equal() + 
      stat_smooth(method='lm')
p3 <- pz + geom_point() + facet_grid(.~g, scales='fixed') + coord_equal() +   
      stat_smooth(method='lm')

grid.arrange(p1, p2, p3, ncol=1)

Answer 3

You can also use the multiplot() function, which could be customized to suite your needs: http://www.cookbook-r.com/Graphs/Multiple_graphs_on_one_page_(ggplot2)/