Compositional data
In statistics, compositional data are quantitative descriptions of the parts of some whole, conveying exclusively relative information. This definition, given by John Aitchison (1986) has several consequences: . The vector operation assigning the constant sum representative is called closure and is denoted by : where D is the number of parts (components) and denotes a row vector.
* Compositional data can be represented by constant sum real vectors with positive components, and this vectors span a simplex, defined as This is the reason why is arbitrary. Frequent values for
known for
primaryTopic
Compositional data
In statistics, compositional data are quantitative descriptions of the parts of some whole, conveying exclusively relative information. This definition, given by John Aitchison (1986) has several consequences: . The vector operation assigning the constant sum representative is called closure and is denoted by : where D is the number of parts (components) and denotes a row vector.
* Compositional data can be represented by constant sum real vectors with positive components, and this vectors span a simplex, defined as This is the reason why is arbitrary. Frequent values for
has abstract
Em estatística, dados composic ...... t per million), 109 (ppb), ...
@pt
In statistics, compositional d ...... some are zero are meaningless.
@en
Link from a Wikipage to an external page
Wikipage page ID
Wikipage revision ID
727,476,091
subject
comment
Em estatística, dados composic ...... ions na solução do solo. Assim
@pt
In statistics, compositional d ...... arbitrary. Frequent values for
@en
label
Compositional data
@en
Dados composicionais
@pt