Charts, Graphs, Diagrams
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Transcript of Charts, Graphs, Diagrams
ETYMOLOGY
c.1200, from Old French chartre (12c.) "charter, letter, document, covenant," from Latin chartula, literally "little paper," diminutive of charta, carta "paper, document“.
DEFINITION
- Graphical representation of data, in which the data is represented by symbols, such as bars, lines or slices.
- Can represent tabular numeric data, functions or some kinds of qualitative structure and provides different information.
HISTORY
• Many sources credit William Playfair (circa 1780) with inventing the bar chart, however a Frenchman, Nicole Oresme used a bar chart in a 14th century publication, "The Latitude of Forms", to plot velocity of a constantly accelerating object against time.
• Moving on 20 years and we finally get to William Playfair who again utilised bar charts in his publication to show imports/exports of Scotland. This is the first example of numerical data being split into discrete groups and plotted as bars and hence the reason William is credited with the invention of the bar chart.
ETYMOLOGY
1610s, from French diagramme, from Latin diagramma, from Greek
diagramma "geometric figure, that which is marked out by lines," from
diagraphein "mark out by lines, delineate," from dia- "across, out" (see
dia-) + graphein "write, mark, draw" (see -graphy). The verb is 1840, from
the noun.
DEFINITION
- synonym to graph
- a two-dimensional geometric symbolic representation of information according to some visualization technique
• Known to Babylonia in the late third millennium B.C. and to Greek in the 5th century B.C.
• where graduated measurement underlies all statistical diagrams
HISTORY
ETYMOLOGY
1878, shortening of graphic formula (see graphic). The verb meaning "charted on
a graph" is from 1889. Related: Graphed; graphing.
• In 1765 Joseph Priestley published a timeline type graph upon which he plotted horizontal bars. Although not one of the more usual forms it is still a bar style chart.
HISTORY
ADVANTAGES
• It makes information visually interesting to the audience.
• Direct emphasis
• Convincin g
• Compact way to convey information
•Picture can say more
•Visualization of concepts
•Maintain attention
REFERENCES
•http://en.wikipedia.org/wiki/Chart•http://en.wikipedia.org/wiki/Diagram•http://www.beaconlearningcenter.com/weblessons/kindsofgraphs/•http://www.etymonline.com/index.php?allowed_in_frame=0&search=graph&searchmode=none•http://www.etymonline.com/index.php?allowed_in_frame=0&search=diagram&searchmode=none•http://www.etymonline.com/index.php?allowed_in_frame=0&search=chart&searchmode=none•http://seeingcomplexity.wordpress.com/2011/02/03/a-short-visual-history-of-charts-and-graphs/•http://www.jpowered.com/graphs-and-charts/bar-chart-history.htm•http://agcj.tamu.edu/howto/GraphicsAdDisad.htm •http://www.ehow.com/list_7189740_benefits-diagrams_.html•http://www.ehow.com/info_8470193_advantages-disadvantage-creating-chart.html