Good afternoon,
I have found a few topics on my issue and believe I have checked the most common issues, but I am still getting various errors.
Methodology
Please note the data set already has a predetermined test and control field but I wanted to go through the entire process of using the AB trend and AB control tools. When I use all the weeks of data, I only get the following error AB Trend (33) Tool #225: Error in svd(x, nu = 0) : a dimension is zero
Any help would be greatly appreciated.
Solved! Go to Solution.
Hi @Lance_In_My_Pants, any chance you could post your Input data? There's not much we can test without it :) If you're not comfortable posting, you can send it to support@alteryx.com
Thanks!
Mistake on my part @CristonS, I have added it to my original post
It appears that you have a number of stores with a lot of zero values. In particular, stores 3122, 3600 and 4070 were entirely zero - that's where the "divide by zero" errors came from (you can use the "Show All Macro Messages" option in the Workflow – Configuration > Runtime tab to see these additional messages).
Removing those 3 stores allowed the workflow to run, but you'll see some stores for which the Trend is missing in the results - those stores had high numbers of zeros, as well.
Please let me know how it goes, thanks!