Description Usage Arguments Details Value Note See Also Examples
Sample from/in a design object.
1 |
X |
The object, typically a design matrix with class
|
size |
Number of sample points. |
atSample |
Logical. If |
... |
Other arguments to be passed to the |
From the object, size
'new' design points are sampled or
drawn. When atSample
is FALSE
, the range of each
column is computed or extracted from the object x
, and then
independent drawings from the corresponding uniform distributions
are used.
A matrix with size
rows. When atSample
is
TRUE
, the matrix has an attribute named index
which
gives the position of the sampled items in the original grid.
When x
is of class "Grid"
, it may be the case
that the drawings with atSample = FALSE
have no meaning since some
of the variables may be discrete variables and not continuous ones.
The sample
function.
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