Time Series with Line and Path Plots
Line and path plots are typically used for time series data. Line plots join the
points from left to right, while path plots join them in the order that they
appear in the dataset (in other words, a line plot is a path plot of the data
sorted by x value). Line plots usually have time on the x-axis, showing how
a single variable has changed over time. Path plots show how two variables
have simultaneously changed over time, with time encoded in the way that
observations are connected.