The Joy of Stats About the video Hans Rosling says there’s nothing boring about stats, and then goes on to prove it. A one-hour long documentary produced by Wingspan Productions and broadcast by BBC, 2010. A DVD is available to order from Wingspan Productions. The change from large to small families reflects dramatic changes in peoples lives. Hans Rosling asks: Has the UN gone mad? Hans Rosling explains a very common misunderstanding about the world: That saving the poor children leads to overpopulation.
World Population Clock: 7.5 Billion People World Population: Past, Present, and Future (move and expand the bar at the bottom of the chart to navigate through time) The chart above illustrates how world population has changed throughout history. View the full tabulated data. At the dawn of agriculture, about 8000 B.C., the population of the world was approximately 5 million. A tremendous change occurred with the industrial revolution: whereas it had taken all of human history until around 1800 for world population to reach one billion, the second billion was achieved in only 130 years (1930), the third billion in 30 years (1960), the fourth billion in 15 years (1974), and the fifth billion in only 13 years (1987). During the 20th century alone, the population in the world has grown from 1.65 billion to 6 billion. Wonder how big was the world's population when you were born? Growth Rate Yearly Growth Rate (%) Annual growth rate reached its peak in the late 1960s, when it was at around 2%. World Population (2019 and historical) Jews
SAS enables visually impaired to 'visualize' data | Paths to Technology | Perkins eLearning Source: SAS Cary, NC (Feb 22, 2017) People with visual impairments are often shut out from hot careers in STEM fields, including analytics and data science. Why? Because the technology is not accessible. Until today, students and professionals with visual impairments have suffered from digital data visualization famine. Sonification uses non-speech audio to convey details about the graph. Ed Summers, Senior Manager of Accessibility and Applied Assistive Technology at SAS, believes SAS Graphics Accelerator will transform how people with visual impairments understand data. “I’m using it daily to do data science at SAS, and run our accessibility program,” says Summers, who is himself blind. SAS Graphics Accelerator compliments SAS University Edition – a free product that allows students and educators to access the same statistical analysis software that is used at more than 83,000 customer sites globally. Empowering teachers Emphasizing inclusion and diversity About SAS
If It Were My Home Tools - Proportional Ink In this article we explore a basic rule for the design of data graphics, the principle of proportional ink. The rule is very simple: when a shaded region is used to represent a numerical value, the area of that shaded region should be directly proportional to the corresponding value. In other words, the amount of ink used to indicate a value should be proportional to the value itself. This rule derives from a more general principle that Edward Tufte set out in his classic book The Visual Display of Quantitative Information. There, he argues that "The representation of numbers, as physically measured on the surface of the graphic itself, should be directly proportional to the numerical quantities represented." (1983, p.56) The principle of proportional ink makes sense of, and extends, the arguments in our article about misleading axes. Bar charts We can see right away that the principle of proportional ink is violated by bar charts with axes that fail to reach zero. Line graphs Perspective
Animation: Population Pyramids of the 10 Most Populous Countries China and India may have similar populations today, but they have very different demographic destinies. While China should see its population fall in the coming decades, India projects to be the most populous country in 2050 by a long shot. By that time, India will have up to 1.7 billion people – and Mumbai will be the largest megacity in the world with upwards of 42 million people. Comparing Population Pyramids These kind of future trends are not evident from the base population figures alone, but they become much clearer when we look at the population pyramids of countries instead. Today’s animated chart comes from PopulationPyramid.net, and it shows a breakdown for each of the 10 most populous countries in the world: A population pyramid, which shows the distribution of a population in terms of age group and sex, can help us to see things like: How many people are being born? Different Makeups Below are three typical patterns for population growth: rapid, slow, and negative. Thank you! Oops.
Tools - Misleading axes on graphs The purpose of a publication-stage data visualization is to tell a story. Subtle choices on the part of the author about how to represent a dataset graphically can have a substantial influence on the story that a visualization tells. Good visualization can bring out important aspects of data, but visualization can also be used to conceal or mislead. Bar chart axes should include zero We begin with a well-known issue: drawing bar charts with a measurement (dependent variable) axis that does not go to zero. It looks like Germany has a big edge over other nations such as Sweden, let alone France, right? (You might notice that in the redrawn graph we've removed the horizontal gridlines separating the countries. Line graph axes need not include zero While the bars in a bar chart should (almost) always extend to zero, a line graph does not need to include zero on the dependent variable axis. What is the difference? When line graphs ought not include zero Well, not really. Conclusion
Ennuste: Pekingin papat ja Pihtiputaan mummot mullistavat maailmantalouden Yksi tärkeimmistä megatrendeistä, joka tulevaisuusskenaariossa nostetaan esiin, on väestön ikääntyminen. Euroopan väestön ikääntyminen on puhuttanut jo pitkään, mutta varsinainen pommi piilee Kiinassa. Nuori työikäinen väestö löytyy jatkossa ennen kaikkea Intiasta ja Afrikasta. Väestön kasvu hidastuu ja pysähtyy Maailman väestönkasvu on ollut viime vuosikymmeninä häkellyttävän nopeaa. Maapallon väestön uskotaan kasvavan noin 9,5–11 miljardiin, suunnilleen vuosien 2040–2050 paikkeilla. Tärkein syy kasvun hidastumiseen on se, että niin sanottu hedelmällisyys eli sen montako lasta synnytysikäinen nainen keskimäärin synnyttää, on laskenut maailmanlaajuisesti hyvin nopeasti, noin 2,4:n lapseen. YK laatii aina kolme eri ennustevaihtoehtoa, sillä varsinkin vielä jäljellä olevissa korkean syntyvyyden maissa ennustaminen ei ole helppoa. Vuonna 2030 maapallolla arvioidaan elävän noin 8,3 miljardia ihmistä. Ikääntyvät ja nuoret maat – Väestönkasvu keskittyy määrättyihin maihin ja maanosiin.
The Work of Edward Tufte and Graphics Press Graphics Press LLC P.O. Box 430 Cheshire, CT 06410 800 822-2454 Edward Tufte is a statistician and artist, and Professor Emeritus of Political Science, Statistics, and Computer Science at Yale University. He wrote, designed, and self-published 4 classic books on data visualization. The New York Times described ET as the "Leonardo da Vinci of data," and Bloomberg as the "Galileo of graphics." Topics covered in this one-day course include: A new, widely-adopted method for presentations: meetings are smarter, more effective, 20% shorter. Fundamental design strategies for all information displays: sentences, tables, diagrams, maps, charts, images, video, data visualizations, and randomized displays for making graphical statistical inferences. New ideas on spectatorship, consuming reports. Standards of comparison for workaday and for cutting edge visualizations. The future of information displays: 4K, 6K, 8K video maps moving in time. Edward Tufte teaches the entire course.