predictors.md
In IxPopDyMod: Framework for Tick Population and Infection Modeling

output test

Code
  predictors(data.frame(pred = c(rep("host_den", 4), "temp"), pred_subcategory = c(
    "mouse", "mouse", "deer", "deer", NA), j_day = c(1, 2, 1, 2, NA), value = 1:5))
Output
        pred pred_subcategory j_day value
  1     temp             <NA>    NA     5
  2 host_den             deer     1     3
  3 host_den            mouse     1     1
  4 host_den             deer     2     4
  5 host_den            mouse     2     2