`Symbol` Causes Trouble in `@transform!` about dataframesmeta.jl

[pdeffebach]

Yes. That is expected. To refer to a column programatically, you should escape with $, i.e. Symbol doesn't cut it.

@transform!(post_cycles, :residuals=:two_party_vote - $(Symbol("50.0%")))

but you can use strings directly here.

@transform!(post_cycles, :residuals=:two_party_vote - $"50.0%")

PS, you can also omit the parentheses if you want

@transform! post_cycles :residuals=:two_party_vote - $"50.0%"

and ensure it's row-wise

@rtransform! post_cycles :residuals=:two_party_vote - $"50.0%"