write multiple arrays to single text file

[mikie121]

Hi.

I can't think of how to write 3 arrays out to a text file (tab delimited). 2 of the arrays are doubles, 1 is an array of strings.

Attached is an image of the format I would like to achieve.

Can anyone please help me with this problem?

[Omar_II]

Just one of the possible ways

[smercurio_fc]

The proposed solution has two flaws:

1. It continuously builds up a string in a loop - this can chop up memory and cause increasing memory usage, especially with large arrays, as LabVIEW needs to allocate more and more memory as the loop progresses.
2. If the arrays are not the EXACT same dimensions, then one of the loops will run based on the minimum number of rows or columns of the arrays. So, for example, if the numerics had 4 columns, but the string had only 3 columns, the last column of the numeric arrays would never get written out.

See attached for an alternate version that performs the operation using no loops.

[mikie121]

Hi.

Thanks to both of you for providing solutions but I can't open them. I am using LV 8.6.1f1

Would it be possible to save your files as older versions so I can open them?

Thanks

[mikie121]

Please save these two files so I can open them in LV 8.6.1

[smercurio_fc]

Attached are the two VIs in 8.6.

[mikie121]

Thanks for the helps guys. I went with the FOR loops because I know exactly how wide each array is and they are all the same length.

Much appreciated.

[mikie121]

After getting the program working I now need to change the output file format 😞

I have attached an image file showing the new format.

Basically I need to append arrays together, but I can't see how to do that.

The arrays are all the same length.

Can someone please help?

[Gak]

See this vi.Might be helpful.

Best of luck

[smercurio_fc]

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@mikie121 wrote:

Thanks for the helps guys. I went with the FOR loops because I know exactly how wide each array is and they are all the same length.

Much appreciated.

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This is a poor reason. When you can perform operations on an entire array in-place, then that's the way you should be doing it. Why in the world would you want to create extra work for yourself?!?

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After getting the program working I now need to change the output file format 😞

I have attached an image file showing the new format.

Basically I need to append arrays together, but I can't see how to do that.

The arrays are all the same length.

Can someone please help?

---

The VI I had shown you already does that - that's what the Build Array is for. Did you run the VI?