Summary
The author of a recent article plots two time series in a dual axis chart as visual evidence of a correlation between the two series. I re-plot the data using three recommended alternatives: a side-by-side chart, an indexed chart,…
Summary
The author of a recent article plots two time series in a dual axis chart as visual evidence of a correlation between the two series. I re-plot the data using three recommended alternatives: a side-by-side chart, an indexed chart,…