If you look at a semi-log plot and assume it has a linear axis, it makes South Korea look like it's pretty bad when it's really not. Sadly, for Covid confirmed cases you pretty much need a semi ...

A logarithmic price scale uses the percentage of change to plot data points, so, the scale prices are not positioned equidistantly. A linear price scale uses an equal value between price scales ...

Example 55.4: Displaying Plots for Simple Linear Regression This example introduces the basic PROC REG graphics syntax used to produce a standard plot of data from the aerobic fitness data set ...