Select Rows of a Data Frame or List

USAGE:

Rows(x, which) 

ARGUMENTS:

x
a data frame or list.
which
a numeric or logical vector used for subscripting each element of x.

VALUE:

an object like x, but with each element of x subscripted by which.

SEE ALSO:

Data frames can also be subscripted as if they were matrices, using the operator.

EXAMPLES:

key(points = Rows(trellis.par.get("superpose.symbol"), 1:3))