hadley/ggplot2 — Issue #333: Inconsistency between geom_tile and geom_raster
Author: kohske
Created: 2011-12-30 02:00:46+00:00
State: open

```
df <- data.frame(x = c(1, 1, 2, 2), y = c(1, 2, 1, 2), z = 1:4)
p <- ggplot(df, aes(x, y, fill = z))
p + geom_tile() + opts(title = "tile")
p + geom_raster() + opts(title = "raster")
```
Raster is weird.
Probably easy to be fixed.
I will inspect.