This function computes computes the minimum value of each element of a univariate functional dataset, optionally returing also the value of the grid where they are fulfilled.
the functional dataset containing elements whose minima have to
be computed, in form of
logical flag specifying whether the grid values where minima are fulfilled have to be returned too.
which = FALSE, the function returns a vector containing the
minima for each element of the functional dataset; if
which = TRUE,
the function returns a
data.frame whose field
the values of minima, and
grid contains the grid points where minima
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