Let’s try some "ugly corner cases" for data manipulation in
R. Corner cases are examples where the user might be running to the edge of where the package developer intended their package to work, and thus often where things can go wrong.
Let’s see what happens when we try to stick a fork in the power-outlet.
Continue reading Data Manipulation Corner Cases
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R package has several places where the user can ask for what they have typed in to be substituted for a name or value stored in a variable.
This becomes important as many of the
rquery commands capture column names from un-executed code. So knowing if something is treated as a symbol/name (which will be translated to a
data.frame column name or a database column name) or a character/string (which will be translated to a constant) is important.
Continue reading rquery Substitution