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My df looks like this:
Product Day Month Total
Web Server, Applicatiion Server, Database Server, Middle Tier Tue 2015-01-01 10
Web Server, Application Server, Database Server, Middle Tier Wed 2015-01-01 6
Web Server, Application Server, Database Server, Middle Tier Wed 2015-02-01 6
I need to create a heat map in ggplot2 where I need to insert Product name as geom_text.
I have this so far:
ggplot(cal, aes(x=Month, y=Day, fill=Total)) +
geom_tile() +
scale_fill_gradient2(high="red",mid="green",low="yellow",
na.value="white", midpoint=mean(cal$Total, na.rm=T))+scale_x_date(labels = date_format("%b-%Y"), breaks = date_breaks("month"))+
geom_text(aes(label=Product))
What happens is since there are multiple Product names separated by comma, when I do geom_text (aes(label=Product)), text is written on top of each other.
Is it possible put each Product name on different lines?
316
The “\n” symbol can be inserted into the position within each component, to insert a line break. The mappings in the ggplot method can be assigned to the labels of the data frame in order to assign the corresponding text at the respective coordinates of the data frame.
You can use the annotate() function to add text to plots in ggplot2. where: x, y: The (x, y) coordinates where the text should be placed. label: The text to display.
If you want to annotate your plot or figure with labels, there are two basic options: text() will allow you to add labels to the plot region, and mtext() will allow you to add labels to the margins.
Just add "\n" to your "Product" labels wherever you need a line break:
library(ggplot2)
df <- data.frame(
label=c("bla \n foo", "first line \n second line"),
x = c(1, 2), y =c(1,2))
ggplot(df, aes(x=x, y=y, label=label)) + geom_text()
151
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