I have a data sheet consisting of three columns. Column A(X) contains 'daytime' (0-24 h). Column B(Y) and C(Y) are different, nonlinear functions of 'daytime'. I have produced a plot of Col B (Y, left axis) versus Col A (X, bottom axis) in one layer. How can I generate a second x-axis on the top which shows Col C (X, top axis) corresponding to the time-axis at the bottom? (I am using Origin 6.1).
I wanted to produce a second x-axis on top with a custom scale. The post which Jose mentions describes a solution for generating a custom y-axis scale. Adopting the procedure to the x-axis has solved my problem. Many thanks!