Jeff
Thanks - that’s easy enough
Jeff
-----Original Message-----
From: Jeff Newmiller <jdnew...@dcn.davis.ca.us>
Sent: Wednesday, February 6, 2019 7:09 AM
To: r-help@r-project.org; reichm...@sbcglobal.net
Subject: Re: [R] Calendar Heat Map
ggplot automatically chooses continuous or discrete scales depending on the
type of column you give it... so don't give it a numeric column (integers are a
subset of numeric)... give it a character (lazy) or factor (better for
controlling what the output looks like) value for your colour specification.
Read
?cut
for one clean way to make a new factor column in your data set before you give
it to ggplot. Note that if you don't like the labels it generates automatically
you can specify them yourself.
On February 5, 2019 2:28:28 PM PST, reichm...@sbcglobal.net wrote:
>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]]
>
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>and provide commented, minimal, self-contained, reproducible code.
--
Sent from my phone. Please excuse my brevity.
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
