How to store two arrays from service in proper infotable for visualization?

Hey all,

I have created a service that does some data preprocessing on sensor data. In the end, I have two one dimensional arrays of length n that I want to store and eventually visualize. One array includes the x-Axis values and the other one the related y-Axis values. When I run the service and put the array as a result and set output to JSON it shows me the array values (see screenshots for x and y array example with n=5).

Now, the question is how do I efficiently store this (assume n=1000 and consider that I would have the (x,y) data for several points in time)? Should I use an Infotable? And how to set up the datashape for the infotable considering that I have a 2x1000 matrix of values for a point in time. If I put the array as a result and select INFOTABLE as output with NumberArrayElement datashape it gives me an error Error "executing service. Message ::Unable To Convert From org.json.JSONArray to INFOTABLE - See Script Error Log for more details.". Any tips how I should solve this? Thank you very much.