get.variables: Get Variables Function
In mtna/rrds: Rich Data Services

This function allows you to select multiple variables metadata.

1	get.variables(url, collection, view, cols = NULL, key = NULL)

`url`	The base URL of the RDS server
`collection`	The collection ID
`view`	The view ID
`cols`	The columns to select
`key`	API key for views that require a key.

1 2	get.variables("http://localhost:8080/rds/api/catalog/","myCollection","myView",cols="var1,var2") get.variables("http://localhost:8080/rds/api/catalog/","myCollection","myView",cols="$demographics")