How to plot multiple lines in R

Question

I have a data that looks like this:

#d  TRUE    FALSE   Cutoff
4   28198   0   0.1
4   28198   0   0.2
4   28198   0   0.3
4   28198   13  0.4
4   28251   61         


        

Answer 1

Here's a base R method, assuming your data is called dat in this example:

plot(1:max(dat$false), xlim = c(0,611),ylim =c(19000,28251), type="n")

apply(
rbind(unique(dat$d),1:2),
#the 1:2 here are your chosen colours
2,
function(x) lines(dat$false[dat$d==x[1]],dat$true[dat$d==x[1]],col=x[2])
)

Result:

edit - while using lowercase true/false for variable names is accepted, it probably still isn't the greatest coding practice.