# gather throws error for POSIXlt Code (expect_error(gather(df, key, val, -x))) Output <simpleError: 'x' is a POSIXlt. Please convert to POSIXct.> Code (expect_error(gather(df, key, val, -y))) Output <simpleError: Column 1 is a POSIXlt. Please convert to POSIXct.> # gather throws error for weird objects Code (expect_error(gather(df, key, val, -x))) Output <simpleError: All columns must be atomic vectors or lists. Problem with 'x'> Code (expect_error(gather(df, key, val, -y))) Output <simpleError: All columns be atomic vectors or lists (not expression)> --- Code (expect_error(gather(df, key, val, -x))) Output <simpleError: All columns must be atomic vectors or lists. Problem with 'x'> Code (expect_error(gather(df, key, val, -y))) Output <simpleError: All columns must be atomic vectors or lists. Problem with column 2.> # factors coerced to characters, not integers Code out <- gather(df, k, v) Condition Warning: attributes are not identical across measure variables; they will be dropped # varying attributes are dropped with a warning Code gather(df, k, v) Condition Warning: attributes are not identical across measure variables; they will be dropped Output k v 1 date1 1546300800 2 date2 17897
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