degrees of freedom

de·grees of free·dom (d.f.),

in statistics, the number of independent comparisons that can be made between the members of a sample (for example, subjects, test items and scores, trials, conditions); in a contingency table it is one less than the number of row categories multiplied by one less than the number of column categories.

de·grees of free·dom

(dĕ-grēz' frē'dŏm) 1. The number of planes (e.g., one, two, or three) within which a joint can move. 2. The variety of possible movement combinations that can occur within a segment of the human body.

degrees of freedom (df)

the number of unrestricted variables in a frequency distribution, a factor that is of great importance in statistical testing. For example, in a simple CHI-SQUARED TEST the number of degrees of freedom is one less than the number of classes (types) of individuals, one d.f. having been lost due to the assumption that a certain proportion of each class is expected. Thus in testing a 9:3:3:1 ratio there are three degrees of freedom.

de·grees of free·dom

(dĕ-grēz' frē'dŏm) In statistics, number of independent comparisons that can be made between the members of a sample.

单词	degrees of freedom
释义	degrees of freedom degrees of freedom (robotics)The number of independent parameters required tospecify the position and orientation of an object. Often usedto classify robot arms. For example, an arm with sixdegrees of freedom could reach any position close enough andcould orient it's end effector (grip or tool etc.) at anyangle about the three perpendicular axes. degrees of freedom The amount of movement available in a robotics or virtual reality system. See 6DOF. degrees of freedom de·grees of free·dom (d.f.), in statistics, the number of independent comparisons that can be made between the members of a sample (for example, subjects, test items and scores, trials, conditions); in a contingency table it is one less than the number of row categories multiplied by one less than the number of column categories. de·grees of free·dom (dĕ-grēz' frē'dŏm) 1. The number of planes (e.g., one, two, or three) within which a joint can move. 2. The variety of possible movement combinations that can occur within a segment of the human body. degrees of freedom (df) the number of unrestricted variables in a frequency distribution, a factor that is of great importance in statistical testing. For example, in a simple CHI-SQUARED TEST the number of degrees of freedom is one less than the number of classes (types) of individuals, one d.f. having been lost due to the assumption that a certain proportion of each class is expected. Thus in testing a 9:3:3:1 ratio there are three degrees of freedom. de·grees of free·dom (dĕ-grēz' frē'dŏm) In statistics, number of independent comparisons that can be made between the members of a sample.
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