XY Graphs with X values from 1d Array, and Y values from 2d Array

[ijustlovemath]

I have a 1D array of times t, and a 2d array where each column is a function f1(t), f2(t), f3(t), f4(t).

How do I generate the cluster needed as an input to the Graph Indicator from these two things to plot f1,f2,f3,f4 on the same graph? or ever have each on their own graph?

[GerdW]

Hi math,

use an autoindexing FOR loop to index your Y 1D data from your 2D array. In the loop you build a cluster of X and Y 1D array, after the autoindexing output tunnel you will have an array of plots for your XY graph…

[ijustlovemath]

What does yours look like? Each time I try to create it I get an error that my dimensions are wrong

[GerdW · Accepted solution]

Hi math,

as I told you:

[ijustlovemath]

I managed to make it work by doing this:

That subVI just takes the 2d array and outputs a reshaped 1d array from the column vector given by the other input.

Final question, this thing will be part of a VI that runs once every iteration. Is there any way to "concatenate" the graphs of each iteration to show an overall graph?

[ijustlovemath]

Also, the reason for using that subVI instead of just autoindexing is that autoindexing a 2d spits out rows, when I wanted columns. An alternate solution would be to transpose the solutions array and just use autoindexing.

[GerdW]

Hi math,

autoindexing a 2d spits out rows

Yes, that's the correct order of things in a 2D array …

When you have measurement data, e.g. from DAQmxRead, you get your data row-wise!

An alternate solution would be to transpose the solutions array and just use autoindexing.

Yes, that's the (most probably) more efficient solution…