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Topic: Coefficient of relationship

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	Heritability - Wikipedia, the free encyclopedia
		Relationship of phenotypic values to additive and dominance effects using a completely dominant locus.
		Sir Francis Galton's (1889) data showing the relationship between offsping height (928 individuals) as a function of mean parent height (205 sets of parents).
		The Expected Mean Square is calculated from the relationship of the individuals (progeny within a sire are all half-sibs, for example), and an understanding of intraclass correlations.
	en.wikipedia.org /wiki/Heritability (2014 words)

	G2911 Inbreeding: Its Meaning, Uses and Effects on Farm Animals, MU Extension
		It is used in the calculation of the coefficient of relationshop because it represents the probability that, in any one generation, an identical gene from a given pair of genes is transitted to each of two particular progeny.
		A practical use of the coefficient of relationship is estimating the performance value of an untested animal.
		The inbreeding coefficient that is calculated is simply relative to that base and reflects the probable percentage reduction in however many dissimilar gene pairs the average base population animals had.
	muextension.missouri.edu /xplor/agguides/ansci/g02911.htm (3389 words)

	coefficient of relationship - Hutchinson encyclopedia article about coefficient of relationship (Site not responding. Last check: 2007-10-30)
		In certain species of insects (for example honey bees), females have only one set of chromosomes (inherited from the mother), so that sisters are identical in genetic make-up; this produces a different set of coefficients.
		These coefficients are important in calculations of inclusive fitness.
		This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.
	encyclopedia.farlex.com /coefficient%20of%20relationship (170 words)

	Derivation of Single-locus Relationship Coefficients Conditional on Marker Information -- from Mathematica Information ...
		The coefficient of relationship is defined as the correlation between the additive genetic values of two individuals.
		The conditional relationship coefficients are shown to depend on the recombination rate between the marker and the QTL and the population frequency of the marker alleles, but not on parameters of the QTL, i.e.
		The conditional relationship coefficient can be used for marker-assisted genetic evaluation as well as for the detection of QTL and the estimation of their effects.
	library.wolfram.com /infocenter/Articles/2117 (223 words)

	Coefficient (Site not responding. Last check: 2007-10-30)
		The Gini coefficient (or Gini ratio) is a summary statistic of the Lorenz curve and a...
		The Gini coefficient is a measure of inequality of a...
		A trinomial coefficient is a coefficient of the trinomial triangle...
	www.shimfriction.com /coefficient (828 words)

	The Relationship Between Two Numeric Variables (Site not responding. Last check: 2007-10-30)
		Understanding these relationships is based on estimating the strength of the relationship between two variables, such as the proportion of high school graduates in a community and the violent crime rate.
		We will look at relationships as they exist at the present time, though in fact, it would be expected that the results of community interventions might take years to show any results.
		Strength of relationship is measured by the tightness of the cluster of the data points around the trendline, no matter what angle the trendline has.
	www.utexas.edu /courses/schwab/sw393s5/Tutorials/RelationshipBetweenNumericVariables_doc_html/001_The_Relationship_Between_Two_Numeric_Variables.html (1294 words)

	Relation
		The inbreeding coefficient is a function of the number and location of the common ancestors in a pedigree.
		The coefficient of relationship (RC) provides a way of objectively assessing the similarity of two pedigrees by giving a number that is a direct measure of shared ancestry.
		are the inbreeding coefficients for the two individuals, A and B. A simpler approach to the breeder's problem would be to compute the RCs for C vs D and E, and D vs E. This is not a pencil and paper calculation.
	www.canine-genetics.com /relation.htm (1961 words)

	Genetic And Quantitative Aspects Of Genealogy - Glossary
		Coefficient of correlation — Statistical measure of resemblance, at the population level, between two individuals for the same character, or the covariation between two characters in the same individual.
		Coefficient of inbreeding — The probability that two alleles at a given locus are identical by descent.
		Coefficient of relationship — Denotes the proportion of genes that are held in common by two individuals as a result of direct or Collateral relationship.
	www.genetic-genealogy.co.uk /Toc115570157.html (1114 words)

	Correlation
		Thus a correlation coefficient of zero (r=0.0) indicates the absence of a linear relationship and correlation coefficients of r=+1.0 and r=-1.0 indicate a perfect linear relationship.
		Thus the correlation coefficient is a function of both the standard error of estimate and the total variance of Y. The standard error of estimate is an absolute measure of the amount of error in prediction, while the correlation coefficient squared is a relative measure, relative to the total variance.
		Correlation coefficients computed with data of this type on either the X and/or Y variable may be safely interpreted because the interval property is assumed to be met for these variables.
	www.psychstat.missouristate.edu /introbook/sbk17m.htm (2762 words)

	Gene Expression: The importance of Kin Selection
		The potential evolutionary importance of help given to relatives of a given degree of relationship depends on the number of such relatives, n, and their genetic relatedness to the giver, r (Sewall Wright’s ‘coefficient of relationship’), the proportion of genes they share by virtue of descent from common ancestors.
		But this much is evident from the coefficients of relationship themselves, and if this were all that Dimwit wanted to show, then his calculation of nr by the formula ((2^g) - 1)/2^(2g - 1) would be irrelevant, whereas in fact he makes it central to his argument.
		For the case of g = 4, there are 64 4-peers (3rd cousins), with a coefficient* of relationship of 1/128, 16 3-peers (2nd cousins), with a coefficient* of relationship of 1/32, four 2-peers (1st cousins), with a coefficient* of relationship of 1/8, and one 1-peer (sibling), with a coefficient* of relationship of 1/2.
	www.gnxp.com /MT2/archives/002410.html (2245 words)

	Relationship in TutorGig Encyclopedia
		Relationship Transgression According to Metts, relationship transgressions are offenses major or minor that disrupt the stability of a relationship because they involve violations of rules explicit or taken..
		A Genetic relationship, in linguistics is the relationship which exists among language s as a result of being members of the same language family or language group that is, either being derived from, or acting..
		An abusive relationship is an interpersonal relationship characterized by the use or threat of physical...
	www.tutorgig.com /es/Relationship (783 words)

	Commodities And The Inflation Rate - July 2000
		The coefficient ranges from -1.0 to +1.0 and identifies the direction as well as the strength of a relationship between the two variables.
		A coefficient of zero indicates there is no relationship at all between the two variables, so when one variable changes, it is equally likely the other variable will rise or fall.
		I examined the relationship between each commodity and the inflation rate as measured by the percentage change of the CPI of the prior 12 months.
	www.traders.com /Documentation/FEEDbk_docs/Archive/072000/Abstracts_new/Saitta/Saitta.html (602 words)

	Diffusion Coefficient - The relationship between the formation factor and the diffusion coefficient of porous materials ...
		Diffusion Coefficient - The relationship between the formation factor and the diffusion coefficient of porous materials saturated with concentrated electrolytes: Theoretical and experimental considerations - Diffusion Coefficient
		This approach, however, yields a diffusion coefficient tensor that characterizes a particular experiment and cannot, in general, be applied to different scenarios.
		In those cases where the self-diffusion coefficients of all the diffusing species are nearly identical, the diffusion potential will be nearly zero, and the apparent bulk diffusion coefficient will be nearly equal to the agglomerated diffusion coefficient.
	ciks.cbt.nist.gov /~garbocz/FFvDiff/FFvDiff/node3.html (417 words)

	RootsWeb: Melungeon-L Re: [Melungeon] Basic DNA
		The math is based on the discipline within population genetics known as "F-statistics" which are used to determine the degree of population structure, inbreeding, outbreeding and Wahlund Effect (measurement of assortive mating by determining the degree of heterozygosity vs homozygosity in various populations).
		Coefficients of relationship are the numbers used by sociobiologists to study behavioral "anomalies" such as altruism among kin.
		PS: There is a closely correlated measure called the "coefficient of kinship" that is generally one-half of the coefficient of relationship depending on the degree of inbreeding vs outbreeding (homozygousity vs heterozygousity) in the population.
	archiver.rootsweb.com /th/read/Melungeon/2002-06/1024936007 (208 words)

	The Adaptive Evolution of Ants
		His paper is primarily based on the coefficient of relationship, which had previously been used to illustrate the relationship between parents and offspring.
		The workers do not calculate the coefficient of relationship between themselves and their peers, but instead behave as they have been selectively molded to act – they live to serve the colony, whether such an action increases their inclusive fitness or not (Ratnieks and Reeve 1992).
		Female ants have a coefficient of relationship of ¾ with their true sisters, and therefore experience strong selective advantages when behaving in an altruistic manner that allows more sisters to be produced.
	oak.cats.ohiou.edu /~jm703496/es-antevln.html (2771 words)

	Education and Children in the United States - Kathy Rowell
		In this exploration, you as a researcher will be exploring the relationship between the dependent variable Percent of teenagers dropping out of high school and two independent variables (indicators) Percent of children in poverty and Percent of families with children headed by a single parent.
		If the correlation coefficient equals +1.00 this means the two variables are perfectly related to one another in a positive direction; in other words, if one variable increases, the other one increases by a corresponding amount.
		If the correlation coefficient equals -1.00 this also means the two variables are perfectly related to one another, but in a negative direction; if one variables increases, the other variables decreases by a corresponding amount.
	www.ssdan.net /kidscount/modules/rowell_education.shtml (1196 words)

	Statistics Glossary - Correlation & Regression
		A correlation coefficient is a number between -1 and 1 which measures the degree to which two variables are linearly related.
		If there is perfect linear relationship with positive slope between the two variables, we have a correlation coefficient of 1; if there is positive correlation, whenever one variable has a high (low) value, so does the other.
		If there is a perfect linear relationship with negative slope between the two variables, we have a correlation coefficient of -1; if there is negative correlation, whenever one variable has a high (low) value, the other has a low (high) value.
	www.cas.lancs.ac.uk /glossary_v1.1/car.html (1055 words)

	Genetic And Quantitative Aspects Of Genealogy - Classification Of Relationships
		Relationship by 'blood' or 'consanguinity' is a true genetic relationship, where individuals pass genes directly from one to the other, or where they are related through recent common ancestors.
		Normal relationship values, as measured by the coefficient of relationship (R), are the standard values between individuals that have a single uncomplicated relationship and where no inbreeding is involved.
		Regular double relationships have the same relationship repeated on both sides of the family, whereas irregular forms are related differently on the two sides.
	www.genetic-genealogy.co.uk /Toc115570136.html (1185 words)

	Web Page of Sir Thomas
		Degree of relationship expressed as correlation coefficient; if relationship exists, means scores within a certain range on one measure are associated with scores within certain range on the other.
		large a correlation coefficient must be to be significant at a given probability level; larger coefficient is necessary for significance with smaller samples.
		p=.05 means that if the coefficient in the table matches what is found, there is a 95% probability that the relationship did not occur by chance.
	users.mikrotec.com /~sirtomas/descstat.html (722 words)

	Tabular calculating of relationship and inbreeding cofficients
		The relationship and inbreeding, and the inversion part of the matrix method has been programmed by Nils Toft and Thomas Nejsum Madsen, respectively, whereas the general matrix part has been borrowed from Bryan Lewis's General Matrix Applet where also the general instructions to the applet can be found.
		The relationship between two animals is the average relationship between the oldest and the others two parents.
		Calculate the inbreeding coefficient for the individuals No 10 and 11, and calculate the additive relationship coefficient between individual 11 and all others in the pedigree.
	www.kursus.kvl.dk /shares/vetgen/_Popgen/genetik/applets/tabularapp.htm (585 words)

	Genetic distance between populations and social strata
		Thus the general pattern of the population structure may be represented by the distribution of coefficients of genetic distance (of coefficients of kinship or inbreeding) within each subpopulation, and thus between all possible pairs of subpopulations, tracing their respective changes in historical time.
		The coefficient of genetic identity by Hedrick determines the extent to which to populations share genes in common by reason of common descent.
		As expected the inbreeding coefficient F has a tendency to increase from generation to generation as a result of fluctuations in family size (Holgate 1971) and extinction of surnames.
	www.volkmar-weiss.de /inbreeding.html (1512 words)

	Page 4 - Kin Selection contradiction? (Site not responding. Last check: 2007-10-30)
		> of relationship is a correlation coefficient (Wright 1969,
		Wright's coefficient of relationship, and it is observed
		> > coefficient of relationship is a correlation coefficient
	www.cyclingforums.com /t-129052-15-4.html (5235 words)

	Gene Expression: It's a Ring thing
		For the benefit of non-Wagnerians, Siegfried is the son of Siegmund and Sieglinde, the twin offspring of Wotan (in the guise of Wälse) and an unnamed mortal woman.
		The coefficient of inbreeding for an individual is the probability that a gene randomly selected from that individual is ibd to his other gene at the same locus, in other words, homozygous at that locus by virtue of descent from a recent common ancestor.
		The coefficient r is therefore equal to (expected number of ibd altruism genes in recipient)/(expected number of ibd altruism genes in actor).
	www.gnxp.com /MT2/archives/003268.html (1573 words)

	Definition of relationship
		1:...or '''inverse relationship''' is a [[mathematical relationship]] in which one [[variable]] decreases as another...
		Relationship of Command is also widely acclaimed as At the Dri...
		1:...n '''abusive relationship''' is a [[interpersonal relationship]] characterized by the use or threat of [[physica...
	www.wordiq.com /search/relationship.html (725 words)

	DOLHENTY ARCHIVE: Statistics - Page 7
		The closer the coefficient is to =1 or -1, the more the second variable is in proportion to the first variable.
		A correlation coefficient of.48 might be considered satisfactory in one situation, whereas a coefficient of.82 might be considered unsatisfactory in another situation.
		The accuracy of this prediction, of course, is based largely upon the degree of relationship, the correlation coefficient, between age and attitude toward legalization of marijuana.
	www.radicalacademy.com /statistics7.htm (910 words)

	Significant relationships: The Canine Diversity Project
		The parameter used to express this common heritage is called the inbreeding coefficient and was first proposed by Sewell Wright in 1922.
		To account for this we have to multiply the inbreeding coefficient calculated for Fred by (1+FA), where FA is the inbreeding coefficient calculated for Anson.
		The fAB term in the RC equation is sometimes called the "kinship coefficient" and may also be used as a measure of the relationship between two individuals.
	www.k9magazinefree.com /k9_perspective/iss5p17.shtml (1972 words)

	CORRELATION COEFFICIENT (Site not responding. Last check: 2007-10-30)
		The most commonly used measure for linear relationship between two variables is the Pearson correlation coefficient.
		As you are computing the correlation coefficient from your sample, it will not exactly equal the value you would obtain from population.
		These correlations coefficients are based on the ranks of the observations and not on the original data values.
	www.helsinki.fi /atk/tilasto/tao/correlatn.html (166 words)

	Computational Details
		To calculate the inbreeding coefficient and the covariance coefficients, use the degree of relationship by descent between the two parents, which is called coancestry or kinship coefficient (Falconer and Mackay 1996, p.85), or coefficient of parentage (Kempthorne 1957, p.73).
		The inbreeding coefficient of an individual is the probability that the pair of alleles carried by the gametes that produced it are identical by descent (Falconer and Mackay 1996, Chapter 5; Kempthorne 1957, Chapter 5).
		The inbreeding coefficient of an individual is equal to the coancestry between its parents.
	www.okstate.edu /sas/v7/sashtml/books/stat/chap30/sect15.htm (1091 words)

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