extractDollarExpressions | R Documentation |
Extracts the expression containing a dollar symbol.
extractDollarExpressions(EXPR)
EXPR |
an R expression |
extractDollarExpressions
extracts the expression containing a dollar symbol. Furthermore it provides an alias for it. This function is meant for internal use in gmReadInternal
, when dollar expressions occur in bracket terms.
Returns a structure, containing the whole expression using the alias instead of the original dollar expression in expr
and the dollar expression itself in dollarExpr
.
K. Gerald van den Boogaart, S. Matos Camacho
gmReadInternal
extractDollarExpressions(quote(root$project == 2))
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