returns a vector of indices of
x such that this is explored in
systematic way by
nb draws, spaced of
kk according to
ord is not "random", a call to
sample is done so it is advised to call first
systematic(x, nb, kk, ord="random")
The vector to systematically sample.
desired number of draws.
frequency of successive draws. Something giving
quasi-uniform draw is is
indicates which type of ordering must be done on the
nb*kk is less than
length(x) then the sequence is
1, kk+1, 2*kk+1,..., (nb-1)*kk+1 taking into account the ordered
order of values of
x. If not either look at the code or
experiment the function.
A vector of length
nb of indices of
1 2 3 4 5 6 7 8 9
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