Changing x axis tick labels in R using ggplot2

r ggplot2 boxplot
Derelict picture Derelict · Dec 11, 2013 · Viewed 77.8k times · Source

How can I change the names of my x axis labels in ggplot2? See below:

ggbox <- ggplot(buffer, aes(SampledLUL, SOC)) + geom_boxplot()

ggbox <- ggbox + theme(axis.text.x=element_text(color = "black", size=11, angle=30, vjust=.8, hjust=0.8)) 

ggbox<- ggbox + labs(title = "Land cover Classes") + ylab("SOC (g C/m2/yr)") + xlab("Land cover classes")

The above code creates the following figure: enter image description here

I would like to be able to capitilize the first letter of these classes (i.e Crop, as opposed to crop).

I've tried the code below but not sure where to put it and exactly what function to use. labels = c("Citrus", "Crop", "Cypress Swamp", ..........)

(I'm using windows 7, Rstudio)

Answer

user1317221_G picture user1317221_G · Dec 11, 2013

create labels:

 SoilSciGuylabs <- c("Citrus", "Crop", "Cypress Swamp")

then add:

+ scale_x_discrete(labels= SoilSciGuylabs)

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