Skip to main content
. Author manuscript; available in PMC: 2019 Oct 1.
Published in final edited form as: Magn Reson Med. 2018 Feb 6;80(4):1666–1675. doi: 10.1002/mrm.27115

Figure 3.

Figure 3

SIMEX and bootstrap approximations of the bias and variance of GFA. a) True bias (blue) and estimated bias (red) in white matter. b) True bias and estimated bias in gray matter. c) True standard deviation and estimated standard deviation in white matter. d) True standard deviation and estimated standard deviation in gray matter. The SIMEX procedure appears to overestimate the true bias in white matter and underestimate the true bias in gray matter. The bootstrap procedure well characterizes the variance.