Resolve a biology vector to age-basis

If the vector length matches n_age, it is returned unchanged (assumed to already be on an age basis). If the vector length matches n_len (and n_len != n_age), it is converted to age using the probability-of-length-at-age matrix: vec_a = t(pla) %*% vec_l. Otherwise an informative error is thrown.

Usage

resolve_bio_vector(vec, n_age, n_len, pla, name = "vector")

Arguments

vec

Numeric vector (length n_age or n_len). May be an AD type inside opal_model().

n_age

Integer. Number of age classes.

n_len

Integer. Number of length bins.

pla

Matrix (n_len x n_age). Probability of length at age (columns sum to 1), as returned by get_pla.

name

Character. Name of the vector used in warning/error messages.

Value

Numeric vector of length n_age on an age basis.

Details

Note: When n_age == n_len the vector is always treated as age-basis. If you need to pass a length-basis vector in that situation you must convert it to age externally before calling the model.