Web development, programming languages, Software testing & others DataFrame.rename(self, mapper=None, index=None, columns=None, axis=None, copy=True, inplace=False, level=None, errors='ignore') Parameter & Description of Pandas DataFrame.rename()īelow are the parameters of Pandas DataFrame.rename() in Python: Parameter rename_with ( iris, ~ paste0 ( "prefix_". x), starts_with("nonexistent")) : #> `.fn` must return a vector of length 0, not 1. x ), starts_with ( "nonexistent" ) ) ) #> Error in rename_with(iris, ~paste0("prefix_".
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