# ## Error bar

#md # ![FILE_NAME.png](images/FILE_NAME.png)

using Random
Random.seed!(2018)

f(x) = 2 * x + 1
x = 0:0.1:2
n = length(x)
y = f.(x) + randn(n)
plot(x, y,
    xerr=0.1 * rand(n),
    yerr=rand(n))
