This function allows to make queries on an existing optimization option list.
This list must have been created and updated by the optimset function.
The optimget allows to retrieve the value associated with a given key.
optimget(options = NULL, key = NULL, value = NULL)A list created or modifies by optimset.
A single character string, which should be the name of the field in
options to query (case insensitive).
A default value.
Return options$key if key is found in options. Return
value, otherwise.
key is matched against the field names of options using
grep and a case-insensitive regular expression. If key is not
found in options, the function returns NULL. If several matches are
found, optimget is stopped.
# NOT RUN {
opt <- optimset(method='fminsearch')
optimget(opt,'Display')
optimget(opt,'abc','!@')
# }
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