Correlation coefficient

Mullainadhan, P (1981) Correlation coefficient. CMFRI Special Publication (7). p. 157.


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Correlation coefficient (r) is an index of association between continuous variables. The coefficient • r ' may have values ranging from + 1 to — 1. r = +1 corresponds to a rectilinear relationship (of the form y=a+bx) in which the two variables are positively related. r=—1 corresponds to a rectilinear relationship (of the form y=a-bx) in which the two variables are negatively related. Values of' r ' near -f 1 (or—1) indicate an approach to a rectilinear relationship. But intermediate values of ' r ' are more difficult to interpret (Parker, 1973). Values of ' r ' near zero may arise under two conditions : 1. when there is no relationship and 2. when there is a real relationship but it is curvi-linear.

Item Type: Article
Uncontrolled Keywords: Correlation coefficient; Crustacean Biochemistry and Physiology
Subjects: Crustacean Fisheries
Fish and Fisheries > Biochemical Study
Divisions: Contributors
CMFRI-Cochin > Marine Capture > Crustacean Fisheries
Depositing User: Geetha P Mrs
Date Deposited: 24 Sep 2010 06:10
Last Modified: 09 Sep 2015 15:21

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