An internal function. Sets up a valid MizerParams object with all the slots initialised and given dimension names, but with some slots left empty. This function is to be used by other functions to set up full parameter objects.
emptyParams( species_params, gear_params = data.frame(), no_w = 100, min_w = 0.001, max_w = NA, min_w_pp = 1e-12 )
A data frame of species-specific parameter values.
A data frame with gear-specific parameter values.
The number of size bins in the consumer spectrum.
Sets the size of the eggs of all species for which this is not
given in the
The largest size of the consumer spectrum. By default this is
set to the largest
The smallest size of the resource spectrum.
An empty but valid MizerParams object
A size grid is created so that
the log-sizes are equally spaced. The spacing is chosen so that there will be
no_w fish size bins, with the smallest starting at
min_w and the largest
max_w. For the resource spectrum there is a larger set of
bins containing additional bins below
min_w, with the same log size. The number of extra bins is such that
min_w_pp comes to lie within the smallest bin.
species_params slot of the returned MizerParams object may differ
from the data frame supplied as argument to this function because
default values are set for missing parameters.
newMultispeciesParams() for a function that fills
the slots left empty by this function.