shape_set {dataPreparation}  R Documentation 
Prepare a data.table by:
transforming numeric variables into factors whenever they take less than thresh
unique
variables
transforming characters using generate_from_character
transforming logical into binary integers
dropping constant columns
Sending the data.table to set_as_numeric_matrix
(when final_form == "numerical_matrix"
)
will then allow you to get a numerical matrix usable by most Machine Learning Algorithms.
shape_set(data_set, final_form = "data.table", thresh = 10, verbose = TRUE)
data_set 
Matrix, data.frame or data.table 
final_form 
"data.table" or "numerical_matrix" (default to data.table) 
thresh 
Threshold such that a numerical column is transformed into
a factor whenever its number of unique modalities is smaller or equal to

verbose 
Should the algorithm talk? (logical, default to TRUE) 
All these changes will happen by reference.