From 294f953c6c6f4d0fd71cf55ce2b305ff6a4804c5 Mon Sep 17 00:00:00 2001 From: Robert Smith Date: Wed, 11 Sep 2019 19:08:12 +1000 Subject: [PATCH] BEP016: Provide example for parameter definitions --- src/05-derivatives/05-diffusion-derivatives.md | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/src/05-derivatives/05-diffusion-derivatives.md b/src/05-derivatives/05-diffusion-derivatives.md index d17d3d16..a39817dd 100644 --- a/src/05-derivatives/05-diffusion-derivatives.md +++ b/src/05-derivatives/05-diffusion-derivatives.md @@ -81,6 +81,13 @@ these uses is defined thus: intrinsic model parameters, without necessitating reference to the empirical diffusion-weighted data. +For example, consider a diffusion tensor model fit: the number of +iterations in the optimisation algorithm would be an *input* parameter; +the six unique diffusion tensor coefficients would be the *intrinsic* +parameters; the Fractional Anisotropy (FA) would be an *extrinsic* +parameter (as it is calculated from the diffusion tensor coefficients +rather than the image data). + ### File names ```Text