Help! I have a datatset with 200ish rows. There are 170ish unique IDs, meaning multiple people have multiple rows. Is there a way to merge the data from the applicable rows (e.g., some rows are dates so that would not be applicable) with a sum? Such that each unique subject ID only has ONE row in the dataset. If its only possible to this with a dataset with applicable rows (i.e., all numeric/continuous variables), I could subset my data to just subject ID + the needed rows for summing. Does this make sense?
Thanks. Can you elaborate?
OK....here is a display of a data table that has 200 rows, with 118 different IDs and contains a date and an Expense column.

What I want is a data table with just one entry per ID and for the date to be the last date the person had a transaction, and I want to know the sum of the expenses. So I go to
Tables=>Summary
and it brings up the following Dialog window which I fill in the information to group by IDs, return the Maximum Date value and the Sum of the Expenses

I then click on the OK button and it creates a data table with the summary statistics

I could have also gotten the same results by using the Tabulate Platform
Analyze=>Tabulate
It is a drag and drop report writer, that once you have the report the way you want, you can go to the red triangle and request that a data table be made from the report
