Taking XY graph data and converting into an array

[Kerbies]

From an image, i have generated a histogram of grayscale values inside a rectangular boundary. I want to compute an integral under this curve, but I need this data in the form of an array to do so. How can I convert this histogram data into an array? I have uploaded the Labview VI and a png of the area of interest. The CSV is too large for me to upload.

[altenbach]

The structure wired to the graph is a simple cluster containing x0, dx, and a 1D array. (it is a waveform graph, not an xy graph!! Not sure why the icon is wrong???) 

All you need is unbundle the elements and autoindex the 1D array on a FOR loop, calculate x based on x0,dx, [i], and create your output.

[altenbach]

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@altenbach wrote:

All you need is unbundle the elements and autoindex the 1D array on a FOR loop, calculate x based on x0,dx, [i], and create your output.

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Here's how you could create the 2D array to be written to file.

[Kerbies]

Would something like this work? I get reasonable looking answers for the integral and the functions waits every 5 seconds to evaluate (which is what I want), but now I need to turn this cluster into a graph and fit an exponential it it.