rica.schema
The `schema` namespace contains functions for creating data-frame schemas,
and checking if data structures conform to the schema. In Rica, a schema is
represented by a ordered-map where the keys are column names and values or
classes (data types).
print-schema
(print-schema schm)
schema
(schema col-name col-type & args)
Creates an ordered map representing a schema of a dataframe or map. Args
should be alternating keyword and Class names (ie Long, String, Double).
Example
(schema :name String :age Long)