How do I select a y value by a certain x datetime

Dear all,

I need to find the y value by a certain x datetime.

If h is my datetime and I try:

y(h);

It does not work. Do I need to convert the datetime? If I have to how should I do it then?

[YT]

Could you clarify your variables with examples? What exactly is y and can you give an example? And what does h look like?

Answer 1

[Daan Boot]

You could try to use 'find'. 'find' gives you the index of the datetime, and thus the index of the y you need.

y(find(h==datetime))

Answer 2

[Peter Perkins]

This is the kind of thing you can do with a timetaqble, but without more information, it's hard to say for sure. timetables do support subscripting by time.