You all have been so helpful so I'm coming back for more help, if I may.
I'm trying to plot 4 sets of data on 1 graph from a .txt file. At the moment they are being shown on separate pages and accessed by pressing a '[' key. I would like them to be displayed on 1 and the same graph with different colour representing each set/ column. I am not sure how to modify this code to enable this.
Thank you very much for all your time in advance.
The full code as follows:
And this is sample of data: