22.6: Bayes Factor
- Page ID
- 8837
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We discussed Bayes factors in the earlier chapter on Bayesian statistics – you may remember that it represents the ratio of the likelihood of the data under each of the two hypotheses: We can compute the Bayes factor for the police search data using the contingencyTableBF()
function from the BayesFactor package:
## Bayes factor analysis
## --------------
## [1] Non-indep. (a=1) : 1.8e+142 ±0%
##
## Against denominator:
## Null, independence, a = 1
## ---
## Bayes factor type: BFcontingencyTable, independent multinomial
This shows that the evidence in favor of a relationship between driver race and police searches in this dataset is exceedingly strong.