Creates a formula which describe evolution of RNA concentration

All the arguments must be characters or language objects (expression, call or name).

grow(x, mu, d, t)

Arguments

x	initial concentration.
mu	new steady-state level.
d	a degradation rate.
t	a longitude of the modelled period.

Value

an expression for the calculation of the RNA level after time t.

Examples

x <- amount_(mu_0)
mu <- amount("mu_new")
d <- "degradation_rate"
t <- "t_labelling"
grow(x, mu, d, t)
#> mu_new - (mu_new - mu_0) * exp(-degradation_rate * t_labelling)
# mu_new - (mu_new - mu_0) * exp(-degradation_rate * t_labelling)