Description Usage Arguments Value Examples
Given a variable name and ..., attempts to extract the variable from ...
1 | extractFrom...(varNames, defaultTo = NULL, ...)
|
varNames |
a string with the name of a variable, or a list of such strings |
defaultTo |
if variable not in ..., return this. Not designed to work with lists. |
... |
Parameters from which to extract variables |
the variable's value, or a list of the variables' values. NULL if cannot be found
1 | ## Not run: extractFrom("col",...)
|
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