## Not run:
# ## simulation with a new generated field of profiles,
# ## of size 16x16 (for speed), with added noise
# simul.fandtasia(gridsz=16, sigma=0.01)
# simul.fandtasia(gdi="gqi2", gridsz=16, sigma=0.01)
# ## same as before, but showing crossing-fibre glyphs
# simul.fandtasia(gridsz=16, sigma=0.01, showglyph=TRUE)
# simul.fandtasia(gdi="gqi2", gridsz=16, sigma=0.01, showglyph=TRUE)
# ## using a 32x32 data field as in the original reference
# ## Warning: time-consuming example
# simul.fandtasia()
# ## speeded up approximations: hardmax and numeric kappa
# simul.fandtasia(gridsz=16, sigma=0.01, E="hardmax", kappa=20)
# ## End(Not run)
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