add_covariates {isotracer} | R Documentation |
Add fixed effects of one or several covariates to some parameters.
Description
Note that new global parameters are not given any default prior.
Usage
add_covariates(nm, ..., use_regexpr = TRUE)
Arguments
nm |
A |
... |
One or several formulas defining the covariates. |
use_regexpr |
Boolean, use regular expression to match the parameters affected by the formulas? |
Value
A networkModel
object.
Examples
# Using a subset of the topology from the Trinidad case study
m <- new_networkModel() %>%
set_topo("NH4, NO3 -> epi, FBOM", "epi -> petro, pseph")
# Taking initial condtions from the 'lalaja' dataset at t=0
# Grouping by transect id
inits <- lalaja[lalaja[["time.days"]] == 0, ]
inits
m <- set_init(m, inits, comp = "compartment", size = "mgN.per.m2",
prop = "prop15N", group_by = "transect")
m
# Default model
params(m, simplify = TRUE)
# Adding an effect of the "transect" covariate on some parameters
m <- add_covariates(m, upsilon_epi_to_pseph ~ transect)
params(m, simplify = TRUE)
[Package isotracer version 1.1.6 Index]