Fix some problematic class comparisons #389
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class()is not guaranteed to return an object of length 1, so statements likeif (class(x) == "y")are problematic since this is often a vector comparison inside a scalar logical operator (if).I fixed a few of these for illustration, but many more remain in the package. You can see them with
lintr::lint_package(linters = lintr::class_equals_linter()).