ggplot2 (version 0.9.0)

geom_step: Connect observations by stairs.


Connect observations by stairs.


geom_step(mapping = NULL, data = NULL, stat = "identity",
    position = "identity", direction = "hv", ...)


direction of stairs: 'vh' for vertical then horizontal, or 'hv' for horizontal then vertical
The aesthetic mapping, usually constructed with aes or aes_string. Only needs to be set at the layer level if you are overriding the plot defaults.
A layer specific dataset - only needed if you want to override the plot defaults.
The statistical transformation to use on the data for this layer.
The position adjustment to use for overlappling points on this layer
other arguments passed on to layer. This can include aesthetics whose values you want to set, not map. See layer for more details.


Run this code
# 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)

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