madness value.Extract parts of a madness value.
# S4 method for madness,ANY,ANY,ANY
[(x, i, j, ..., drop = TRUE)# S4 method for madness,ANY,missing,ANY
[(x, i, j, ..., drop = TRUE)
a madness object.
indices specifying elements to extract or replace. Indices are
numeric or character vectors or empty (missing) or
NULL. Numeric values are coerced to integer or whole numbers as
by as.integer or for large values by trunc
(and hence truncated towards zero).
Character vectors will be matched to the names of the
object (or for matrices/arrays, the dimnames):
see ‘Character indices’ below for further details.
For [-indexing only: i, j, ... can be
logical vectors, indicating elements/slices to select. Such vectors
are recycled if necessary to match the corresponding extent.
i, j, ... can also be negative integers,
indicating elements/slices to leave out of the selection.
When indexing arrays by [ a single argument i can be a
matrix with as many columns as there are dimensions of x; the
result is then a vector with elements corresponding to the sets of
indices in each row of i.
An index value of NULL is treated as if it were integer(0).
further indices specifying elements to extract or replace.
For matrices and arrays. If TRUE the result is
coerced to the lowest possible dimension (see the examples). This
only works for extracting elements, not for the replacement. See
drop for further details.
Steven E. Pav shabbychef@gmail.com