% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/geom_segment.R
  mapping = NULL,
  data = NULL,
  stat = "identity",
  position = "identity",
  lineend = "butt",
  na.rm = FALSE,
  show.legend = NA,
  inherit.aes = TRUE,
  nudge_x = 0,
  arrow = NULL,
  arrow.fill = NULL,
\item{mapping}{aes mapping}


\item{stat}{Name of stat to modify data}






\item{nudge_x}{horizontal adjustment of x}

\item{arrow}{specification for arrow heads, as created by arrow().}

\item{arrow.fill}{fill color to usse for the arrow head (if closed). \code{NULL} means use \code{colour} aesthetic.}

\item{...}{additional parameter}
add segment layer
geom_segment2 support aes(subset) via setup_data
Guangchuang Yu