degrees of freedom

The number of degrees of freedom of a distribution (http://planetmath.org/Distribution3) is the number of parameters that are used to the value of the distribution and are either known or assumed to be independent.

The following use degrees of freedom:

•
chi-squared random variable
•
chi-squared statistic
•
F distribution
•
non-central chi-squared random variable
•
t distribution

Remark:The number of degrees of freedom has also a physical meaningrelated to the possible directions of motion of the system.

单词	DegreesOfFreedom
释义	degrees of freedom The number of degrees of freedom of a distribution (http://planetmath.org/Distribution3) is the number of parameters that are used to the value of the distribution and are either known or assumed to be independent. The following use degrees of freedom: • chi-squared random variable • chi-squared statistic • F distribution • non-central chi-squared random variable • t distribution Remark:The number of degrees of freedom has also a physical meaningrelated to the possible directions of motion of the system.
随便看	ClosedPoint closed point ClosedSet closed set ClosedSetInACompactSpaceIsCompact closed set in a compact space is compact ClosedSetInASubspace closed set in a subspace ClosedSublattice closed sublattice ClosedSubsetsOfACompactSetAreCompact closed subsets of a compact set are compact closedWalkTrekTrailPath (closed) walk / trek / trail / path Closure closure ClosureAndInteriorOfCantorSet closure and interior of Cantor set ClosureAxioms closure axioms ClosureMap closure map ClosureOfARelationWithRespectToAProperty closure of a relation with respect to a property ClosureOfASubsetUnderRelations