A data.frame with rows representing samples and matching with data.frame count_table and processed_table
and three columns:
studyid: character denoting the subject ID of the infants.
delivery: character denoting the delivery mode of the infants.
day_of_life: character denoting the age of infants measured in days when microbiome sample was taken.
meta_table
References
Bokulich, Nicholas A., et al. "Antibiotics, birth mode, and diet shape microbiome maturation during early life." Science translational medicine 8.343 (2016): 343ra82-343ra82.