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| RE: Extracting _Just_ Bayes Factor [ Reply ] By: Richard Morey on 2015-04-27 13:59 | [forum:42202] |
| You can use as.vector(), extractBF(), or as.data.frame() to extract the Bayes factor. The BayesFactor package stores the BF as a logarithm for numerical stability. | |
| Extracting _Just_ Bayes Factor [ Reply ] By: John Clevenger on 2015-03-30 16:35 | [forum:42195] |
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Hi. I'm hoping to run some simulations and, as such, need to accumulate Bayes Factors for lots of simulated experiments. However, I'm not sure how to get _just_ this information from the result of a ttestBF. If I run: bf = ttestBF(group_01, group_02) ..the result is a nice summary of the test: Bayes factor analysis -------------- [1] Alt., r=0.707 : 0.7470219 ±0% Against denominator: Null, mu1-mu2 = 0 --- Bayes factor type: BFindepSample, JZS I want to save just the BF and discard the rest of the information, but I can't figure out how to do this. Exploring the bf data structure, it looks like the Bayes Factor should be stored in: bf@bayesFactor$bf ...but this returns a value that I can't quite map onto the returned Bayes Factor (here it equals -0.2916607). Is this indeed the BF but it's transformed somehow for the output? Is there a way to just grab the end result (e.g., 0.7470219 above)? Thanks! John |
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