Hello,
I'm trying to set different boxes to different colors the following page
shows
http://www.sthda.com/english/wiki/ggplot2-box-plot-quick-start-guide-r-software-and-data-visualization
I've tried the code
ToothGrowth$dose <- as.factor(ToothGrowth$dose)
head(ToothGrowth)
library(ggplot2)
# Basic box plot
p <- ggplot(ToothGrowth, aes(x=dose, y=len)) +
geom_boxplot()
p+scale_color_manual(values=c("#999999", "#E69F00",
"#56B4E9"))
p
But still can not get the colors to show up. I'm sure it is something
simple I'm doing wrong and would appreciate help.
Thank you in advance
David
[[alternative HTML version deleted]]
I see you creating a variable p, evaluating and printing a modified version of that variable, and then printing that variable (presumably overwriting the first plot). Are you executing your code one line at a time when troubleshooting? On January 17, 2019 2:32:51 PM PST, David Doyle <kydaviddoyle at gmail.com> wrote:>Hello, > >I'm trying to set different boxes to different colors the following >page >shows >http://www.sthda.com/english/wiki/ggplot2-box-plot-quick-start-guide-r-software-and-data-visualization > > >I've tried the code >ToothGrowth$dose <- as.factor(ToothGrowth$dose) >head(ToothGrowth) >library(ggplot2) ># Basic box plot >p <- ggplot(ToothGrowth, aes(x=dose, y=len)) + > geom_boxplot() >p+scale_color_manual(values=c("#999999", "#E69F00", "#56B4E9")) >p > >But still can not get the colors to show up. I'm sure it is something >simple I'm doing wrong and would appreciate help. > >Thank you in advance >David > > [[alternative HTML version deleted]] > >______________________________________________ >R-help at 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.-- Sent from my phone. Please excuse my brevity.
> -----Original Message----- > From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of David > I'm trying to set different boxes to different colors the following page > shows> http://www.sthda.com/english/wiki/ggplot2-box-plot-quick-start-guide-r- > software-and-data-visualization > > > I've tried the code > ToothGrowth$dose <- as.factor(ToothGrowth$dose) > head(ToothGrowth) > library(ggplot2) > # Basic box plot > p <- ggplot(ToothGrowth, aes(x=dose, y=len)) + > geom_boxplot() > p+scale_color_manual(values=c("#999999", "#E69F00", "#56B4E9")) > pYou have not mapped an aesthetic to colour, so the scale (which applies to an aesthetic) is not being used at all. Try ( p <- ggplot(ToothGrowth, aes(x=dose, y=len)) + geom_boxplot(aes(colour=dose)) ) which uses default colours. Once you have an aes mapping you can change the scale, so ( p + scale_colour_manual(values = c("red", "blue", "green")) ) gives you the colour ordering you want. ( p + scale_colour_manual(values = c("red", "blue", "green"), guide=FALSE) ) also removes the redundant colour key. S Ellison ******************************************************************* This email and any attachments are confidential. Any use...{{dropped:8}}