Expand interaction dataset to include zeroes (unobserved interactions)

Expand interaction dataset to include zeroes (unobserved interactions)

Usage

expand_unobs(
  df = NULL,
  plant.var = "Plant",
  animal.var = "Animal",
  int.var = "Visits",
  fill.value = 0
)

Arguments

df

A data frame with interaction presence or frequency data

plant.var

character. Name of the column representing plants.

animal.var

character. Name of the column representing animals.

int.var

character. Name of the column representing interaction presence or frequency.

fill.value

Value to use in int.var for unobserved interactions.

Value

A data frame

Examples

data(web)
df <- web[sample(1:nrow(web), size = 30), ]
df.expand <- expand_unobs(df)