scale_linetype {ggplot2} | R Documentation |
Default line types based on a set supplied by Richard Pearson, University of Manchester. Line types can not be mapped to continuous values.
scale_linetype(..., na.value = "blank") scale_linetype_continuous(...) scale_linetype_discrete(..., na.value = "blank")
na.value |
The linetype to use for |
... |
common discrete scale parameters: |
library(reshape2) # for melt library(plyr) # for ddply ecm <- melt(economics, id = "date") rescale01 <- function(x) (x - min(x)) / diff(range(x)) ecm <- ddply(ecm, "variable", transform, value = rescale01(value)) qplot(date, value, data=ecm, geom="line", group=variable) qplot(date, value, data=ecm, geom="line", linetype=variable) qplot(date, value, data=ecm, geom="line", colour=variable) # See scale_manual for more flexibility