Plots a density plot with facets or a tile plot with facets

example(ggally_facetdensity)

## 
## gglly_> data(tips, package = "reshape")
## 
## gglly_>  ggally_facetdensity(tips, mapping = ggplot2::aes(x = total_bill, y = sex))

## 
## gglly_>  ggally_facetdensity(
## gglly_+    tips,
## gglly_+    mapping = ggplot2::aes_string(y = "total_bill", x = "sex", color = "sex")
## gglly_+  )

example(ggally_denstrip)

## 
## gglly_> data(tips, package = "reshape")
## 
## gglly_>  ggally_denstrip(tips, mapping = ggplot2::aes(x = total_bill, y = sex))

## stat_bin: binwidth defaulted to range/30. Use 'binwidth = x' to adjust this.
## stat_bin: binwidth defaulted to range/30. Use 'binwidth = x' to adjust this.

## 
## gglly_>  ggally_denstrip(tips, mapping = ggplot2::aes_string(x = "total_bill", y = "sex"))

## stat_bin: binwidth defaulted to range/30. Use 'binwidth = x' to adjust this.
## stat_bin: binwidth defaulted to range/30. Use 'binwidth = x' to adjust this.

## 
## gglly_>  ggally_denstrip(
## gglly_+    tips,
## gglly_+    mapping = ggplot2::aes_string(x = "sex", y = "tip", binwidth = "0.2")
## gglly_+  ) + ggplot2::scale_fill_gradient(low = "grey80", high = "black")

## stat_bin: binwidth defaulted to range/30. Use 'binwidth = x' to adjust this.
## stat_bin: binwidth defaulted to range/30. Use 'binwidth = x' to adjust this.