Hello!
Thank you for your quick answer! The problem we have is that it could be 2 signals and next time it could be 5 signals... We have for example values for signal a= 1 2 3 4 5 and for signal b= 10 11 12 13 14. What we get in our solution in the chart is one curve with the values 1 10 2 11 3 12 4 14 5 . It could be 5 signals (a,b,c,d,e) next time we measure. Thank you for your help! Best regards.