Open 1to1 left.jmp:

Open 1to1 right.jmp:

Example data

Example data

Go to 1to1 left.jmp → Tables → Concatenate 

Move both the 1to1 left.jmp and 1to1 right.jmp datasets to the

Data Tables to be Concatenated box.

JMP screenshot

Example data

More information:

JMP: Concatenate Data Tables

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