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gmAndify creates a call, which is a conjunction of list elements given in its arguments for further use in ON or WHERE clauses of SQL statements
gmAndify
gmAndify(l,and="&")
A string of class call for further use.
call
list of elements, which shall be conjuncted
determines the kind of conjunction being used. Default case is the logical AND.
K. Gerald van den Boogaart, S. Matos Camacho
Instead of a conjunction you can create a disjunction using and="|". This function is in gmReadInternal
and="|"
gmReadInternal
gmRead
gmAndify(c("a","b"))
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