geom_step {ggplot2} | R Documentation |
Connect observations by stairs.
geom_step(mapping = NULL, data = NULL, stat = "identity", position = "identity", direction = "hv", ...)
direction |
direction of stairs: 'vh' for vertical then horizontal, or 'hv' for horizontal then vertical |
mapping |
The aesthetic mapping, usually constructed
with |
data |
A layer specific dataset - only needed if you want to override the plot defaults. |
stat |
The statistical transformation to use on the data for this layer. |
position |
The position adjustment to use for overlappling points on this layer |
... |
other arguments passed on to
|
geom_step
understands the following aesthetics (required aesthetics are in bold):
alpha
colour
linetype
size
# Simple quantiles/ECDF from examples(plot) x <- sort(rnorm(47)) qplot(seq_along(x), x, geom="step") # Steps go horizontally, then vertically (default) qplot(seq_along(x), x, geom="step", direction = "hv") plot(x, type = "s") # Steps go vertically, then horizontally qplot(seq_along(x), x, geom="step", direction = "vh") plot(x, type = "S") # Also works with other aesthetics df <- data.frame( x = sort(rnorm(50)), trt = sample(c("a", "b"), 50, rep = TRUE) ) qplot(seq_along(x), x, data = df, geom="step", colour = trt)