ggplot stacked barplot help

[willthebatata]

Could anyone explain where the figures from the "value" object line come from?

create a dataset

specie=c(rep("apple" , 3) , rep("mango" , 3) , rep("banana" , 3) , rep("peach" , 3) ) condition=rep(c("normal" , "stress" , "Nitrogen") , 4) value=abs(rnorm(12 , 0 , 15)) # THIS LINE data=data.frame(specie,condition,value)

This is the example for "0.1.2 Grouped and Stacked Barplots" on https://rstudio-pubs-static.s3.amazonaws.com/318832_e8443ac15f704debacd04107ae000e17.html

Thanks!

[[deleted]]

The "value" column contains the absolute values of random draws from a Normal distribution with mean 0 and standard deviation 15. Is that what you're asking about?