pxweb_add_mandatory_variables: Add mandatory variables to query
Description
Add mandatory variables to query
Usage
pxweb_add_mandatory_variables(pxq, pxmd)
Arguments
- pxq
a pxweb_query
object.
- pxmd
a pxweb_metadata
object.
Details
Complement queries that lack explicit requests for variables with requests for every value of these variables.