Function icopt = optionfind(copt,key)
c = optionfind(copt,{key1,key2,...})
returns a vector of indices in copt for which the
keys (i.e. odd elements in copt) are equal to
the input string key.
If input argument key is a cell-array of strings,
the output is a cell-array c consisting of
vectors icopt.
The cell-array copt for a given option string sopt
is returned by optionsplit(sopt).
See the help text of m-file optionindex.m for
the (assumed) pattern of options in sopt.
(c) 2026 fabien van mook
2026.08.20 release of this file within package "fvm-optionmanip" under GNU GPLv3+
