Modern R Programming Cookbook

How it works…

Once you supply the keywords to the EUtilsSummary() function, it converts keyword into the PubMed search_query term. Inside the EUtilsSummary() function, you could mention the number of articles you want to retrieve. In this example, the number of articles is limited to 10 to save time. The output of the EUtilsSummary() function will look as follows:

    > search_query    [1] "(\"DEEP Dev Educ Exch Pap\"[Journal] OR \"deep\"[All Fields])          AND (\"learning\"[MeSH Terms] OR \"learning\"[All Fields])"

The keyword term that has been used, "Deep Learning", is now converted into PubMed search_query. The summary of the search_query term will tell you the number of articles available with the keywords that have been used. In this case, the ...