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William Playfair (22 September 1759 – 11 February 1823) was a Scottish engineer and political economist.The founder of graphical methods of statistics, [1] Playfair invented several types of diagrams: in 1786 he introduced the line, area and bar chart of economic data, and in 1801 he published what were likely the first pie chart and circle graph, used to show part-whole relations. [2]
Political violence: pacifism (political views should not be imposed by violent force) vs. militancy (violence is a legitimate or necessary means of political expression). In North America , particularly in the United States, holders of these views are often referred to as " doves " and " hawks ", respectively.
Instead of using a bar or pie chart, the apportionment of seats between the parties in a legislative body such as a parliament can be represented more clearly by displaying the individual representatives of each party as dots in a pattern, because the number of representatives is also significant, and is easily understood visually.
Interactive maps, databases and real-time graphics from The Huffington Post
Bar chart of tips by day of week: Bar chart: length/count; category; color; Presents categorical data with rectangular bars with heights or lengths proportional to the values that they represent. The bars can be plotted vertically or horizontally. A bar graph shows comparisons among discrete categories. One axis of the chart shows the specific ...
CHART #2: SIDE-BY-SIDE COMPARISON OF DEMOCRATIC CANDIDATESÕ HEALTH PLANS By Susan J. Blumenthal, M.D., Jessica B. Rubin, Michelle E. Treseler, Jefferson Lin, and David Mattos* Joe Biden Chris Dodd Mike Gravel Dennis Kucinich Bill Richardson Stated Goals for Coverage ! Provide access to affordable health care for all and contain costs1! Begin ...
The Nolan Chart is a political spectrum diagram created by American libertarian activist David Nolan in 1969, charting political views along two axes, representing economic freedom and personal freedom.
A bar chart or bar graph is a chart or graph that presents categorical data with rectangular bars with heights or lengths proportional to the values that they represent. The bars can be plotted vertically or horizontally. A vertical bar chart is sometimes called a column chart and has been identified as the prototype of charts. [1] A bar graph ...