![]() ![]() ![]() Next, you’ll see the steps to apply the above approaches using simple examples. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. Rename MultiIndex columns in Pandas pandas 83,286 Solution 1 Use setlevels: In 22 : df. (2) Set multiple columns as MultiIndex: df.set_index() (1) Set a single column as Index: df.set_index('column') If ‘ignore’, existing keys will be renamed and extra keys will beĭataFrame with the renamed axis labels or None if inplace=True.Depending on your needs, you may use either of the two approaches below to set column as index in Pandas DataFrame: You can use the following syntax to rename the index column of a pandas DataFrame: df.index.rename('newindexname', inplaceTrue) The following example shows how to use this syntax in practice. Or columns contains labels that are not present in the Index If ‘raise’, raise a KeyError when a dict-like mapper, index, You can use the following syntax to rename the index column of a pandas DataFrame: df.index. columns dict-like or functionĪlternative to specifying axis ( mapper, axis=1 Specify the axis to target with mapper, or index andĪlternative to specifying axis ( mapper, axis=0 Length of names must match number of levels in MultiIndex. Parameters mapper dict-like or functionĭict-like or function transformations to apply to rename (name, inplace False) source Alter Index or MultiIndex name. This method also takes several arguments like inplaceTrue, axis1 and more, refer to pandas documentation for more details. This article describes the following contents. pandas Set Index Name using renameaxis () You can also rename the Index name using renameaxis (), just pass the index name you wanted as an argument to this method. You can also rename index names (labels) of pandas.Series in the same way. Labels not contained inĪ dict / Series will be left as-is. You can rename (change) column/index names of pandas.DataFrame by using rename (), addprefix (), addsuffix (), setaxis () methods or updating the columns / index attributes. rename ( mapper = None, *, index = None, columns = None, axis = None, copy = None, inplace = False, level = None, errors = 'ignore' ) #įunction / dict values must be unique (1-to-1).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |