Data table: find data in row according to date

[Everynone]

@basic_writing

But I do not understand how (the first part of your answer) allows to automatically find the date of the day (today) and output the temperature data that corresponds to its row?

Rows are dates, you provide a date and get a corresponding row:

• if this is my data:

• I can look up today’s temp and the temp in 1938 by pressing 1 like so:

This prints: