Column Chart v.s. Bar Chart
Well, it was confusing. I was thinking bar charts and column charts were doing the same thing. The distinct appearance of them is the direction of the “bar”. Actually, you could call columns “bars” if you want. Thus, I event didn’t get this critical idea that a bar chart CANNOT draw bars vertically. You know what? I struggled with this for hours. Finally I realized it.
So, please remember:
A Column Chart is showing number of columns vertically, which seems to “stand” on the horizontal axis.
A Bar Chart is showing number of bars horizontally, like a rotation column chart.
However, they are logically different.