Weekly Challenge

Solve the challenge, share your solution and summit the ranks of our Community!
IDEAS WANTED

We're actively looking for ideas on how to improve Weekly Challenges and would love to hear what you think!

Submit Feedback
We've recently made an accessibility improvement to the community and therefore posts without any content are no longer allowed. Please use the spoiler feature or add a short message in the message body in order to submit your weekly challenge.
SOLVED

Challenge #127: US Grand Prix Lap 2 - Employee Retention

Highlighted
Alteryx Certified Partner

It is clearly described how the models should be entered, however, no employee is awarded a predicted probability to leave above ~.35 so none of the records join (using 2019.2 here, so perhaps some changes were made within underlying R packages such as C5.0, cart, partykit?)

 

Anyways, I did what was expected in the challenge and I wasted a lot of time to figure out why my results are different

 

Spoiler
127.png
Highlighted
11 - Bolide
11 - Bolide

Getting in some last minute practice ahead of my grand prix prelims next week!

 

Spoiler
Challenge 127.PNG
Highlighted
Alteryx Certified Partner

Couldn't get the same answer, then saw the posts mentioning versions which I'm confident is the reason...

Spoiler
Challenge 127.PNG
Highlighted
Alteryx Certified Partner
Alteryx Certified Partner

Challenge 127 is done!

 

Spoiler
challenge 127 JMS solution.PNG
Highlighted
8 - Asteroid

As others using newer versions, I couldn't get the same results... Definitely spent too much time trying to fix that

 

Spoiler
image.png
Highlighted
13 - Pulsar

Had it built in under 10 minutes, but took a long time to figure out why I was getting no results >= .5.  Finally looked at other newer replies and found the need to revert Decision Tree to earlier version.

 

Spoiler
Workflow 127.JPG

 

Highlighted
8 - Asteroid

image.png

I slightly reinterpreted the challenge. Because of tool version discrepancies I decided to use all the available predictive tools to see if I can get similar records with any of them. The answer is no. I created my own list of employees by unioning the result from all the predictive tools and keeping the ones which came out of more than one tool.

 

 

Highlighted
8 - Asteroid
 
Highlighted
8 - Asteroid
Spoiler
2019-11-14_15-29-42.png

My predictive tools aren't outputting >= 0.5 probability. Either are other solutions I've downloaded... probably the difference in Alteryx versions since this challenge is 1+ years old. I'll still chalk this up as a win?!

Highlighted
8 - Asteroid

Hmmm... interesting that the newer version of the Decision Tree and/or Score tool aren't backwards compatible with the older versions.

 

Spoiler
2019-12-03 08_19_06-Greenshot.png