Differentiate between wide and tall data formats?
In a wide data format, you would have a Data Set with:
- One Single row for EVERY data point
- Multiple columns to represent different attributes of a data point
For the use case of classroom, this is what a wide data set could look like:
Wide Data Set
As you can see above, each student has a single row, with different columns showing their scores in different subjects.
Suppose you want to consolidate all the marks into a single column. For this purpose you would need a Tall Data Set, which would look like this:
Tall Data Set