Final answer:
The program's primary purpose is sentiment analysis, using the VADER dictionary to evaluate the sentiment of text and provide insights on the usage of specific search terms.
Step-by-step explanation:
The primary purpose of the program described is sentiment analysis. This type of software application is designed to process text data to discern the sentiment expressed within it, often using sentiment dictionaries like VADER. By analyzing the frequency of a search term and evaluating the sentiment of sentences containing that term, the program provides insights into how the term is being used contextually across different files and folders.
Such programs serve as essential tools in fields like data analytics, market research, and customer feedback analysis. They can help businesses and researchers understand public opinion, the emotional tone behind social media posts, or even customer reviews. The added functionality of counting the occurrence of search terms and identifying their location within files further assists in organizing and interpreting large sets of textual data.