2024: Week 7 - Solution



Solution by Tom Prowse and you can download the workflow here.



The challenge this week is a themed one all about Valentines day! We want to match up some couples and what gifts they receive based on the length of their relationship. 

Step 1 - Number of Valentines

First we want to use the Couples input to calculate how many valentines days a couple has been together. After inputting the data we can make sure that the Start date has the correct data type - from a string to a date type. Then we can create a Valentine's day for 2024 by creating a new date field: 

Valentine's Day 2024
MAKEDATE(2024,2,14)

Now we have these two dates we can then create a new row for each of the Valentine's by using the New Rows step: 



Then we can filter for only Valentine's days by filtering for February and the 14th: 

(MONTH([NewRows1]) = 2)
AND
(DAY([NewRows1]) = 14)

Then use an aggregation to count the number of rows per couple: 



At this stage our table should look like this: 




Step 2 - Combine Gifts

We can now include the Gifts input and then clean the year field by removing the letters and then changing the data type to a number. 



Then we can join this table to our existing workflow by using an inner join where Number of Valentine's = Year: 


We can then remove the year field and we are ready to output our table: 



After you finish the challenge make sure to fill in the participation tracker, then share your solution on Twitter using #PreppinData and tagging @Datajedininja, @JennyMartinDS14 & @TomProwse1

You can also post your solution on the Tableau Forum where we have a Preppin' Data community page. Post your solutions and ask questions if you need any help! 

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