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Z must be a matrix, not scalar or vector - surface plot

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Hello,
Attached is a screenshot of my code and a table I recreated in excel. Just pretend it is in MATLAB. Unfortunaltly, because this is for work, I cannot share actual screenshots, so I made a simplified mock up to show you.
'bs' is the variable name I call from.
The table is a 1x4 structure with 4 fields. I converted the data to a table as this fixed my issue last time, but now I get the error 'Z must be a matrix, not scalar or vector' again.
I appreciate any help/advice. Thanks!

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Accepted Answer

Abdolkarim Mohammadi-Balani
You use surf when you have z value for each combination of x and y vectors. Here, you have x, y, and z vectors, so you should draw a 3D scatter plot using scatter3() function.
scatter3 (tbl.temp, tbl.humid, tbl.k);

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