Find elements of Rd objects for which a condition is true
Find elements of Rd objects for which a condition is true.
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an Rd object.
a function to evaluate with each element of
a character string.
a character vector.
These functions return the indices of the (top level) elements of
rdo which satisfy a condition.
Rdo_which finds elements of
rdo for which
fun gives TRUE.
Rdo_which_tag_eq finds elements with a specific
Rdo_which_tag_in finds elements whose
Rd_tag's are among
the ones specified by
a vector of positive integers
Georgi N. Boshnakov
Rdo_locate which searches recursively the Rd object.
##---- Should be DIRECTLY executable !! ----