r-Help Form
I'm working on a "Time-Series Calendar Heatmap" using the following code.
ggplot(myData, aes(monthweek, weekdayf, fill = myData $adjusted)) +
geom_tile(colour = "white") + facet_grid(year(myData $date)~monthf) +
scale_fill_gradient(low="red", high="green") +
xlab("Week of Month") + ylab("") +
ggtitle("Time-Series Calendar Heatmap ") + labs(fill = "Price")
While the ggplot commands do (almost) what I want I can't figure out how to
change my color scaling. While scale_fill_gradient(low="red", high="green")
does what I ask, that is create a color gradient from red to green it not
what I thought it would be. What I need is discreet colors something like 0
- grey; 1:5 - blue; 6:10 - green etc. How to I set discrete colors for
groups of values. A color ramp would work but I need to separately color
those cells with 0 counts.
Jeff Reichman
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
