HDFStore.append(key, value, columns=None, **kwargs)

Append to Table in file. Node must already exist and be Table format.

Parameters :

key : object

value : {Series, DataFrame, Panel, Panel4D}

data_columns : list of columns to create as data columns, or True to use all columns

min_itemsize : dict of columns that specify minimum string sizes

nan_rep : string to use as string nan represenation

chunksize : size to chunk the writing

expectedrows : expected TOTAL row size of this table

encoding : default None, provide an encoding for strings


Does not check if data being appended overlaps with existing data in the table, so be careful