Multiple curves on XY graph

[Pavel_47]

Hello,

How to plot multiple curves on XY graph.

Here is a solution for 2 curves, but if the number of curves is important (e.g. 10) this method becomes boring.

One more detail - all Y curves share the same X.

Thanks

[falkpl]

This depends on the incomming data.

1.  If they all share the same Y data then just wire it to the same Y array.

2.  Ideally the X data is in a 2D array and you can do it in an autoindexing loop.

       For each X set

             bundle XY and autoindex out

Plot the answer as a multiXY plot

[crossrulz]

My first thought was to have the data be in a 2D array and then you can do all of the work in a FOR loop to create the cluster for each plot and the autoindex out to the XY Graph.

[Pavel_47]

Well, to avoid confusing I define more exactly my setup (for simplicity for just 2 curves).

There are 3 arrays of size N: X, Y1, Y2.

Y1 and Y2 share the same X.

If I properly understood point (1), I build an array from Y1 and Y2 (using Build Array)

And this new array (let say YY) "unify" with X array (using Bundle).

Then Bundle output wire to XY graph.

Correct ?

[crossrulz · Accepted solution]

Maybe this will clarify what we are saying.

[Pavel_47]

Yes !

It's exactly what I searched for.

[wjdwyer]

Had a hard time following the above until writing out another description for the solution VI:

For non-uniform x-axis data, curves are generally represented as 1-D array X data and Y data pairs.  A method for minimizing calls to shared X data is as follows:

If the X-axis data is shared, build a 2-D array out of the Y-axis 1-D arrays. Then use a For-Loop to index through the 2-D data, bundle it with the X data, and autoindex out the array of clusters to an XY Graph.