Contents of lvm file

[ness4]

Hello,

My apologies ... I fear this is a very newbie question and I'm just missing something basic.

I have created some .lvm files without headers.  The contents are similar to the following:

0.000000    -107.735124     1201.923077 29750000.000000
1.000000    -107.762989
2.000000    -107.572127
3.000000    -107.399742
4.000000    -107.235805
5.000000    -107.362865
0.000000    -106.956888     1201.923077 29750000.000000
1.000000    -108.601099
2.000000    -109.851508
3.000000    -109.635430
4.000000    -109.490798
5.000000    -108.779298
0.000000    -106.965030     1201.923077 29750000.000000
1.000000    -107.329684
2.000000    -107.370099
3.000000    -107.303000
4.000000    -107.492371
5.000000    -107.958117

My question is, what are the two extra values that sit at then end of the first line of each new segment (1201.923077 29750000.000000)?  I've read over "Specification for the LabVIEW Measurement File (.lvm), Version 1.0" but I'm still unsure of those two values.

Thank you in advance!

[DFGray]

Assuming you have written three data sections to the file, the extra text is probably the comment field.  It appears to be filled in with two tab-separated DBLs.  Precisely what did you use to generate the LVM file (there are several options, depending on what software you have)?  If you could post the code, it would help in diagnosis.  Also, what version of LabVIEW are you using?

[ness4]

DF Gray,

Thank you so much for your input.  I'm attaching a file to show you the configuration settings I used with my Write To Measurement File vi.  Thanks again!  I really appreciate your help!

🙂

[DFGray]

The extra data is indeed a comment.  You have wired the comment input with a string containing the values of two doubles.  At a guess, I would say they are the x0 and dx of your data, but the subVI which generates them is missing, so I don't know.