Both representations of the most recent reading Which corresponds to the most recent value of glucose, the number Lacking a scale of measurement, this free-floating line is dequantified.Īt least we do know the value of the line's right-most data point, The most recent measurement of glucose should be compared withĮarlier measurements for the patient. Placed in the relevant context, a single number gains meaning. In a clinical record as a word and number: The most common data display is a noun accompanied by a number.įor example, a medical patient's current level of glucose is reported Sparklines: Intense, Simple, Word-Sized Graphics (Thanks to Adam Schwartz for his excellent work on randomized sparklines. This little randomization check-up, which can be repeated again and again, is seen by the analyst at the very moment of making inferences based on a statistical graphic of observed data. the actual data is an "Interocular Trauma Test" because the comparison hits the analyst right between the eyes. The test of the 10 randomized sparklines vs. For the real and amazing bootstrap, applied to data graphics and contour lines, see Persi Diaconis and Bradley Efron, " Computer Intensive Methods in Statistics." The 10 random sparkline sequences can be regenerated again and again by, oddly enough, clicking on "Regenerate random seasons." This is looking a bit like bootstrap calculation. Hard to see the difference between real and random. Weighting by overall record of wins/losses and home/road effects yields ten random sparklines. Below, the top sparkline shows the season's win-loss sequence (the little horizontal line = home games, no line = road games). To dilute streak-guessing, randomize on time over the same data, and compare random streaks with the observed data.
In sports, it is the main explanatory variable. In economics, autocorrelation is regarded as a plague. This initially was intellectually taxing to viewers with preconceived narratives. When coaches watched the video of a game, they would often simply reinforce their prior story: "When we kicked the ball out of bounds twice in the first minute, that was the beginning of the end, we lost all momentum and never caught up.blah blah." To overcome premature storytelling, the team did postgame reviews with the plays of the game in random order.
#DELTAGRAPH 3D SCATTER PLOTS PROFESSIONAL#
The shorter the attention span of the reporter and the audience, the greater the faux trend spotting.Ī General Manager of a professional NBA basketball team described to me this strategy for escaping over-storytelling in postgame analysis. Sports, financial, and political reports are notorious for their narrative overreach, fantasizing about clusters, streaks, momentum, turning points, trend-spotting.
#DELTAGRAPH 3D SCATTER PLOTS SERIES#
Similarly, when people are asked generate a random series of bits, they generate too few long streaks (such as 6 identical bits a row), because their model of what is random greatly underestimates the amount of streakiness in genuinely random data. When people look at random number tables, they sees all kinds of clusters and streaks (even in random data). Informal, Inline, Interocular Trauma Tests Implementing angular.js directives for d3.js and nvd3.js, Tutorial here for creating SVG-based sparklines with d3.js. Watch No Easy Breach /oFEFCDAqA6- Richard Bejtlich September 27, 2016 used #sparklines to identify attacker activity. Should have design minimization, not data minimization. Good but should show more detail, more data texture. 196:Īpple Watch sparkline, announced September 9, Sparklines in Steven Heller and Véronique Vienne,ġ00 Ideas that Changed Graphic Design (Lawrence King Publishing, 2012), p. See Edward Tufte, Beautiful Evidence, 46-63.ġ970 NASA report of throttle problems in the Apollo Lunar Module. Data graphics should have the resolution of typography.
Table, headline, map, spreadsheet, graphic. Sparklines mean that graphics are no longer cartoonish special occasions with captions and boxes,īut rather sparkline graphics can be everywhere a word or number can be: embedded in a sentence, A sparkline is a small intense, simple, word-sized graphic with typographic resolution. (( k - 1 ) * t ) plot! ( x, y, c =: red ) # the small circle xc = r * ( k - 1 ) * cos ( t ). ( th ) anim = for i in 1 : n # initialize plot with 4 series plt = plot ( 5, xlim = ( - 4, 4 ), ylim = ( - 4, 4 ), c =: red, aspect_ratio = 1, legend = false, framestyle =: origin ) # big circle plot! ( plt, X, Y, c =: blue, legend = false ) t = th # the hypocycloid x = r * ( k - 1 ) * cos. # Hypocycloid # Lets recreate the gif on the Wiki () r = 1 k = 3 n = 100 th = Array ( 0 : 2 * pi / 100 : 2 * pi + 2 * pi / 100 ) # theta from 0 to 2pi ( + a little extra) X = r * k * cos.
0 kommentar(er)
