How do I replace 0 with NaN in an array?

I have text file with XYZ data from an interferometer. The interferometer data is incomplete. That is, some of the Z values in the text file are recorded at "No Data". The "Read From Spreadsheet File.vi" reads the value "No Data" as "0 0". I've written a vi that translates this text file into a 3D image, but I would like to have an image in which no data is displayed on the 3D Surface indicator on my front panel if there actually is no Z-data. Is there a NaN constant that I can use in place of the number "0"?

Thanks MDDave,
When reading back the file, it will interpret NaN accordingly. I made a small test file to illustrate. You'll see missing points (or broken line in the example).
The data is: 0.592840 0.932214 NaN 0.443935 0.842214 NaN NaN 0.365292 0.837349 (seperated by Tab in the file).
As expected, the missing points are 2, 5 & 6.
Message Edited by JoeLabView on 06-27-2007 12:50 PM
Attachments:
NaNGraph.PNG ‏8 KB

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How do I replace 0 with NaN in an array?

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