Some of the questions below are rhetorical, others have answers, but it's not always clear which is which.
References are to figure numbers unless noted P for Page or T for Table.
V-axis should be from 0 to 20 in steps of 5 - abbreviated (0, 20, 5). The minor ticks are unnecessary, especially in a non-time axis.|
As always in a time series, the V-axis annotations (title and tick labels) could be to the right.
Show either 9 minor H-axis minor ticks (one for each year) or none at all.
The exhibit could use a clear title instead of the V-axis label.
Wainer's own graphics appear to be drawn by hand, or at least to have a slightly crude look (note the odd placements of the markers on the lines).
Note that this is one of the few examples of a pure S v T exhibit.|
Using one of Tufte's ideas, would the exhibit be improved by showing more than one 'cycle' e.g. 1½ days?
Question: what does the slope of each line represent, and what would 45° signify?
|1.1||This is an interesting early example of small ‘sketches’ in a document - why don't authors do this more often?|
|1.4||Before the Cartesian paradigm: values shown in the plot; how would you revise?|
Why break up by month?|
What do the horizontal lines signify?
The grid is stronger than the plot.
Time labels on right|
What of data between events? Is an area chart appropriate?
The bars are ordered by "Today’s" population|
I would show Zt-38 above Zt0 – we read down and left add % change.
|P 23||Why does the book need foot- and endnotes?|
|T 4.1||This is a nicely designed table; I might use dittos or lines to signify the span of the monarchs.|
How many dimensions of data?|
What’s the extent & resolution of time? Note that even 200 years ago ‘gradient’ was a temptation!
|4.2||This datagraphic implies that measurements were made at the time events shown.|
|4.3||The gridlines (both styles) are distracting.|
The time axis is mislabeled - should be the same as in 4.3.|
The v-axis is too busy; (8, 16, 2) would be sufficient, without minor ticks.
Why are the dots connected by what appears to be a spline?|
Would callouts (arrows + text boxes) be sufficient to indicate the events?
|P 33||This is a nice graphical illustration of so-called 'spurious correlation.' The H-axis would be clearer with ticks and labels at 980 + 20 * (0, 6, 1). This is improved somewhat in 9.5.|
What of the linear interpolation?|
The contractions of the years on the H-axis isn't needed.
|4.7||As with 4.2 a naive interpretation is that measurements were only made at the times of the labeled events - what of data at other times?|
Note the labels on axis 4, where we can interpret current values more easily.|
Why smooth the data?
|4.9||What are the grid lines for?|
|5.2||This is a nice combination of T and S dimensions. 1¼ T cycles are shown. Although T is shown in the usual direction, because of Earth's sense of rotation S is therefore reversed.|
A pure T graphic (except for the labels).|
Study this graphic for awhile and realize that for T to increase to the right, events have to occur to the left! Think about this when making an animation.
This horizontal bar chart enables the V labels to be oriented as read. |
The H labels could just as well be (0, 300, 20); note that the time scaling factor is implied in the last value.
The bar symbology may have been made on an early Macintosh computer; something subtler would do.
Another almost purely T datagraphic. The horizontal organization is always tricky: tstart, tend, or (tend - tstart)? |
The labels are near the data.
It would be interesting to see a book containing the sketches of famous scientists!
This is very hard to read but rewards study.|
Question What STP dimensions are shown here and on which axes?
Finally, we look at some maps!|
How many variables do each of the symbol boxes illustrate?
Pressure could more clearly be shown with contours.
Using an ellipse to highlight a period is less clear than vertical line boundaries or a horizontal bold line.|
The V-axis could be (0.5, 2, .05).
|9.2||The log scale should be clearly labeled as such, and the minor ticks don't have much meaning (they're at 300, 3000, etc).|
|9.3||Why are there 3 font sizes on the T-axis, and what do the 5-year ticks mean?|
A more sophisticated analysis would look at differences.|
What is the smooth curve model based on?
|15.3||QuestionWhat are at least 3 insights illustrated here (don't click on the link until you've thought about it!)?|