geom_errorbarT, geom_errorbarL and geom_errorbarR are geometries to render error bars
for the top, left and right apex species respectively, analogous to geom_errorbar and/or
geom_errorbarh as provided in the base ggplot2 package.geom_errorbarL(mapping = NULL, data = NULL, stat = "identity",
position = "identity", allow.outside = TRUE, ...)geom_errorbarR(mapping = NULL, data = NULL, stat = "identity",
position = "identity", allow.outside = TRUE, ...)
geom_errorbarT(mapping = NULL, data = NULL, stat = "identity",
position = "identity", allow.outside = TRUE, ...)
aes or aes_string. Only needs to be set
at the layer level if you are overriding the plot defaults.