Leonard Mada wrote:
I was disturbed that so much effort is put into expanding these 3D
charts, when virtually any high-ranking statistician warns against
their use. To quote Prof. Feinstein: (applies to both 3D bars and 3D
pies)
A particularly lamentable custom is “volumizing”— a tactic that
converts the two-dimensional bar to a three-dimensional post. Since
the second-dimension was needed only for labeling, the
third-dimension is completely unnecessary. Its use is an act of
“marketing,” not scientific communication. (Examples of these
abuses for contrasts of groups will be shown later in Chapter 16.)
At the risk of stating the obvious: There are people in the world to
whom "marketing" is daily work instead of an insult, and their
requirements have to be taken into account, too.
And a somewhat similar concept: (the worse pie-chart example)
The basic idea of a pie graph is abandoned because each category is
given about the same angular slice, and the circular shape has been
converted to a quasi-ellipse for portraying a third dimension.
That quote refers to a type of chart we don't have, where the values are
represented by the height (thickness) of the segments. Consider it a bar
chart in circular layout and it even looks kind of neat.
Don't get me wrong: Your suggestions for scientific charts are very
welcome, just please don't demand removing features that are important
to other users.
Niklas
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