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The word pedigree is a corruption of the Anglo-Norman French pé de grue or "crane's foot", either because the typical lines and split lines (each split leading to different offspring of the one parent line) resemble the thin leg and foot of a crane [3] or because such a mark was used to denote succession in pedigree charts. [4] A pedigree ...
An ancestry chart, which is a tree showing the ancestors of an individual and not all members of a family, will more closely resemble a tree in shape, being wider at the top than at the bottom. In some ancestry charts, an individual appears on the left and his or her ancestors appear to the right.
A genogram, also known as a family diagram, [1] [2] is a pictorial display of a person's position and ongoing relationships in their family's hereditary hierarchy. It goes beyond a traditional family tree by allowing the user to visualize social patterns and psychological factors that punctuate relationships, especially patterns that repeat over the generations.
The first Ahnentafel, published by Michaël Eytzinger in Thesaurus principum hac aetate in Europa viventium Cologne: 1590, pp. 146-147, in which Eytzinger first illustrates his new functional theory of numeration of ancestors; this schema showing Henry III of France as n° 1, de cujus, with his ancestors in five generations.
Genealogy (from Ancient Greek γενεαλογία (genealogía) 'the making of a pedigree') [2] is the study of families, family history, and the tracing of their lineages. Genealogists use oral interviews, historical records, genetic analysis, and other records to obtain information about a family and to demonstrate kinship and pedigrees of ...
Galton invented the use of the regression line [59] and for the choice of r (for reversion or regression) to represent the correlation coefficient. [ 47 ] In the 1870s and 1880s he was a pioneer in the use of normal theory to fit histograms and ogives to actual tabulated data, much of which he collected himself: for instance large samples of ...
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Pedigree chart, a document to record ancestry, used by genealogists in study of human family lines, and in selective breeding of other animals Pedigree, a human genealogy (ancestry chart) Pedigree (animal), a breed registry Purebred, or "pedigreed" animal with a recorded lineage