| findVarsInExpression {gmDatabase} | R Documentation |
findVarsInExpression
Description
parses expressions and returns the variables
Usage
findVarsInExpression(EXPR)
Arguments
EXPR |
a call object representing an R expression |
Details
findVarsInExpression takes a call and returns the names. It is used in gmReadInternal for parsing an R expression of an SQL query for variables.
Value
A string consisting of the variables.
Author(s)
K. Gerald van den Boogaart, S. Matos Camacho
See Also
replaceVarsInExpression, gmReadInternal
Examples
a <- quote( A==B^C+A^2+C )
findVarsInExpression(a)
[Package gmDatabase version 0.5.0 Index]