206 reputation
27
bio website andrewpwheeler.wordpress.com
location Albany, NY
age 29
visits member for 2 years, 11 months
seen Dec 12 at 17:02

Doctoral Student in Criminal Justice.


Aug
1
awarded  Yearling
Jul
18
comment how to illustrate dependence of time of day?
For similar charts I've had people stumble over fractional units because they do not understand it is an average. Also I have had to explain the error bars to many people - although I definitely think they should be included.
Jul
17
awarded  Editor
Jul
17
revised Where to place the Y axis label
edited body
Jul
17
answered Where to place the Y axis label
May
12
awarded  Commentator
May
12
awarded  Citizen Patrol
Apr
15
comment Representing time intervals in a chart
Your sketch is similar to a gantt chart.
Apr
3
comment What's the best way to visually convey rank?
+1 - A circle here to insinuate rank is very silly IMO. A circle has no beginning or end, so it is unclear from the glyph itself where the ranking falls. A linear graph I would think would be a better choice. You can fill up the meter bar just the same as a donut.
Feb
14
awarded  Necromancer
Feb
10
comment Innovative pie chart? Is there any graph that can be used instead of pie chart?
If the stacked bar chart comes with an axis displaying the percents it is likely to read as accurately as a pie chart.
Jan
31
comment Colour stripes in chart
The visual hallucination you refer to are called moire patterns. And yes they are quite difficult to avoid when using line hatching. IMO point textures are bit easier on the eyes. A simple solution to the labels would be to have the label have a non-transparent background with a slight buffer/halo (or have the labels outside the pie).
Sep
20
answered Correction in color model
Sep
20
comment How to visually show status values for a large number of data points?
+1 - I'd note though that depending on how often the list is updated the constant changing of positions brought by the sorting could be distracting.
Jul
26
comment Additional information for tables
+1 - You want to consider though what the goal of the statistics are. If say you have the average or the median value, placing it in the column of the table is useful, as it is easier to make quantitative comparisons from individual cells compared to the anchor figure. See page 8 of Feinberg and Wainer (2011), PDF here.
Jun
30
awarded  Teacher
Jun
30
answered How to visualize data with extreme value differences?
Jun
30
comment Should I fill empty space in bars?
@whuber This is the extreme I was talking about (to be clear, evidence suggests totally minimal vs. outlines makes no difference, not that outlines are better). See Albert Cairo's The Functional Art and discussion plus related lit. as a counter-argument (pg. 65-67). This is in regards to typical graphs though, not dashboard like ones. Most examples of good dashboards I could find (via Stephen Few) agree more with you and rk, no hard outlines but varying use of guidelines (e.g. Few's bullet charts, Cleveland's marker at the midpoint).
Jun
28
comment Should I fill empty space in bars?
@rk. the border is a guideline in vince's example. See the Cleveland paper and subsequent other data visualization literature that suggest the framed rectangles are more accurate than other representations, in particular extreme Tufte like plots with no borders. The borders here do no hindering.
Jun
28
comment Should I fill empty space in bars?
Tufte taken to the extreme suggests this, but this is largely unfounded in current lit. Guidelines and such can help aid look-up. For an example of similar framed rectangles to what @vincebowdren suggests see Cleveland and McGill (1984).