| add_clock_time | Add clock times to a data frame of nodes |
| add_col_if_missing | Add default-value columns to a dataframe |
| add_id_attrs | Add recording id, block id, and segment id to all annotation... |
| add_its_id | Add '.its' filename to a data frame produced by any of the... |
| as_local_time | Use UTC time and timezone from '.its' file to calculate local... |
| clean_time_cols | Coerce all columns with LENA time strings to numeric... |
| clean_time_str | Convert '.its' time format strings to numeric (seconds) |
| clean_tz_str | Make '.its' timezone string 'lubridate' compatible |
| extract | Extract nodes of a certain type from an '.its' file as data... |
| extract_its_filename | Extract its filename from the '.its' xml tree |
| extract_tz | Extract timezone of the recording from '.its' |
| fetch_attr_path | Run xpath attribute query, storing results in a dataframe |
| fetch_attr_paths | Run multiple xpath attribute queries, collecting results in a... |
| gather_path | Return nodes of a certain type from an '.its' file as data... |
| gather_speaker_transitions | Gather speaker transitions |
| pipe | Pipe operator |
| read_its_file | Read a LENA .its file |
| rlena | rlena: Make Working with LENA '.its' files easy |
| sort_gathered_columns | Sort columns in data frames produced by any of the 'gather_'... |
| split_conversation_info | Split conversationInfo column |
| xml_path_to_df | Run xpath query and return attributes of the found nodes as... |
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