as_contact_survey.md
In socialmixr: Social Mixing Matrices for Infectious Disease Modelling

error is thrown if survey contains false data types

Code
  as_contact_survey(erroneous_type1)
Condition
  Error in `as_contact_survey()`:
  ! Assertion on 'x$participants' failed: Must be of type 'data.frame', not 'character'.

Code
  as_contact_survey(erroneous_type2)
Condition
  Error in `as_contact_survey()`:
  ! Assertion on 'x$participants' failed: Must be of type 'data.frame', not 'double'.

incorrect structure of data frames is correctly identified

Code
  as_contact_survey(erroneous_structure1)
Condition
  Error in `as_contact_survey()`:
  ! Assertion on 'colnames(x$participants)' failed: Names must include the elements {'part_id'}, but is missing elements {'part_id'}.

explicitly specified missing columns still error

Code
  as_contact_survey(no_country_survey, country.column = "country")
Condition
  Warning:
  The `country.column` argument of `as_contact_survey()` is deprecated as of socialmixr 0.5.0.
  i Please use the `country_column` argument instead.
  Error in `map()`:
  i In index: 1.
  Caused by error in `.f()`:
  ! `country` column "country" does not exist in the participant data frame.

Code
  as_contact_survey(no_year_survey, year.column = "year")
Condition
  Warning:
  The `year.column` argument of `as_contact_survey()` is deprecated as of socialmixr 0.5.0.
  i Please use the `year_column` argument instead.
  Error in `map()`:
  i In index: 2.
  Caused by error in `.f()`:
  ! `year` column "year" does not exist in the participant data frame.