]> 2.2 2008-09-05 Michel Dumontier graph http://dumontierlab.com rdf/xml Leo Ferres en Statistical Graph Ontology (primitive) Natalia Villanueva-Rosales An ontology of statistical graphs and their components. has end point has part has proper part has quality has source The relation between an entity and its source of origin. has start point has tag has title The relation between an entity and a title. is end point of is part of is proper part of is quality of is start point of is tag of is title of has end has slope has start has step has symbol has value arrowed line axis axis title The title of an axis. bar bar graph A chart with rectangular bars of lengths proportional to that value that they represent. Bar charts are used for comparing two or more values. category axis An axis that uses non-numerical categories. category axis title The title of a category axis. category data Categorical Data coordinate axis An axis defined within a coordinate system. data Factual information. data point A point in space composed of data. decreasing line double arrowed line dropline end point A point that marks the end point of some geometric object footnote A note, typically at the bottom of a page, that provides additional information to a point within the main text. geometic object graph title histogram A graphical display of tabulated frequencies that shows the proportion of cases which fall into each of several categories. The area of the bar that denotes the value, not the height, a crucial distinction when the categories are not of uniform width (Lancaster, 1974). The categories are usually specified as non-overlapping intervals of some variable. The categories (bars) must be adjacent. horizontal line increasing line label left value axis A value axis that is on the left of the plot. left value data Value data part of the left value axis. legend line line bar graph line graph A two-dimensional scatterplot of ordered observations where the observations are connected following their order. linear value axis An axis that is linear in scale. logarithmic value axis A value axis that is logarithmic in scale. major tick mark minor tick mark note a comment or instruction pie graph plot The part of a graph between the set of axes (and their labels) that define it. point primary category axis A category axis that serves as the primary axis. primary category data Category data part of the primary category axis. primary graph title primary title right value axis A value axis that is on the right of a plot. right value data Value data part of the right value axis. scaled axis An axis that has the quality of being scaled. scatter graph A graph to visually display and compare two sets of related quantitative, or numerical, data by displaying only finitely many points, each having a coordinate on each axis. secondary category axis A category axis that serves for the secondary categories. secondary category data Category data part of the secondary category axis. secondary graph title secondary title semi logarithmic value axis A value axis that is semi-logarithmic in scale. series A series of data points. single arrowed line source The origin of the entity. stacked bar graph start point A point that marks the start point of some geometric object statistical graph An information graphic that displays the relationship among tabular numeric data and/or functions. text tick mark title trendline value axis An axis that uses continuously varying numerical data. value axis title The title of a value axis. value data Numerical Data vertical line x axis An axis that follows a horizonal line. XY plot A plot having an x and y axis. y axis An axis that follows a vertical line. z axis An axis that follows a line into and out of the plane of reference. graph The union of meanings for Graph includes a chart or diagram, a set of nodes and vertices, the set of values for a function. horizontal bar graph maximum data point minimum data point vertical bar graph