Changing check mark of x-axis labels in R with ggplot2

Question

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 image:

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

I tried the code below, but I don’t know where to place it, and which function to use. labels = c("Citrus", "Crop", "Cypress Swamp", ..........)

(I am using Windows 7, Rstudio)

Answer 1

create shortcuts:

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

then add:

 + scale_x_discrete(labels= SoilSciGuylabs)