I used the import file wizard to import a text file and it was successfully shown as output data. While I was trying to plot my data using the line plot wizard, it did allow me to assign the vertical variable. I could assign the horizaontal one using the drop-down list, but couldn't click the down arrow for vertical. I also tried to make a line plot not using the wizard, same thing. In Data>Task roles, it just didn't allow me to add for the vertical variable. Any ideas? Thanks in advance.
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