: A data structure where each row represents a single observation and features are stacked vertically (the "tidy" data format).
If you are looking for a from a dataset or a particular homework problem involving this file, please provide the name of the dataset or the full question text for a more precise answer. 103_gram.txt
While there is no single widely-known document with this exact name, the "103_gram" and ".txt" format suggest a few technical possibilities: : A data structure where each row represents