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I am trying to figure out how I can draw my 3D surface plot using pgfplots when external data is scattered to an excel file in 2D with no headers. I wasted almost 2 days now and have no clue how can I achieve this.

The visualization of the data with 3D surface plot in LABVIEW is given below. I also added how the excel file looks like and gave tab delimited txt file below.

Thanks in advance.

Tab delimited .txt of data is here LABVIEW Surface Plot How the data looks

Stefan Pinnow
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m43dr3
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  • As a first step, use pgfplotstable to read and print out the data. If that works, plotting it should be no problem. – John Kormylo May 07 '18 at 13:53
  • You need to tell pgfplots how your data is organized. From first principles, the program does not know whether data is given as (x, y, z) coordinates, array of z coordinates on an x-y grid… Look at the pgfplots manual and try to come up with a minimal working example. We can help you from thereon. – Huang_d May 07 '18 at 14:25

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