Reference

All functions
bibli_data_table	A selected dataset of bibliometric data on the topic of "Library science"
doc_group()	Construct network of documents based on keyword co-occurrence
keyword_clean()	Automatic keyword cleaning and transfer to tidy format
keyword_cloud()	Draw word cloud for grouped keywords
keyword_extract()	Extract keywords from raw text
keyword_group()	Construct network from a tidy table and divide them into groups
keyword_merge()	Merge keywords that supposed to have same meanings
keyword_network()	Flexiable visualization of network (alternative to 'keyword_vis')
keyword_table()	Display the table with different groups of keywords
keyword_vis()	Visualization of grouped keyword co-occurrence network
make_dict()	Making one's own dictionary