From 571f96c02259ba181f807786bc3c819f226582af Mon Sep 17 00:00:00 2001 From: James Bonfield Date: Thu, 19 Aug 2021 11:31:38 +0100 Subject: [PATCH] [SQUASH ME] Replace phred-true-scale language. --- VCFv4.3.tex | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/VCFv4.3.tex b/VCFv4.3.tex index c3b3c75d8..9632bcc1b 100644 --- a/VCFv4.3.tex +++ b/VCFv4.3.tex @@ -544,7 +544,7 @@ \subsection{VCF tag naming conventions} \begin{itemize} \item The `L' suffix means \emph{likelihood} as log-likelihood in the sampling distribution, $\log_{10} \Pr(\mathrm{Data}|\mathrm{Model})$. Likelihoods are represented as $\log_{10}$ scale, thus they are negative numbers (e.g.\ GL, CNL). - The likelihood can be also represented in some cases as a phred-true scale ($-10 \log_{10}(probability\_of\_being\_correct)$) in a separate tag (e.g.\ PL). + In some cases the likelihood may also represented using a positive value in a separate tag (e.g.\ PL) using the $-10 \log_{10}(probability\_of\_being\_correct)$ scale. In this case they may be normalised so the most likely event has a score of 0. \item The `P' suffix means \emph{probability} as linear-scale probability in the posterior distribution, which is $\Pr(\mathrm{Model}|\mathrm{Data})$. Examples are GP, CNP.