Convert a text file to an array, then extract a range of data points from it.

[Ying88827]

I want to do the following steps:

1. Read from a text file and convert it to an array.

         My text files are with 2 colums, like this:

          1  1053

          1.3  1044

          1.5  2033 

          1.7  2444

          1.9  4335

2. Extract a range of data points from that array.

       I wanna give it an order to extract the data points that I want and output as an new array.

      The range starts when colum 1 value > 1.2, and end when colum 1 value < 1.8. (1.3 to 1.7)

      And extract the range of data from these two colums, so my expect result array is:

          1.3  1044

          1.5  2033 

          1.7  2444

Can anyone help me?

I'm a new user of labview haha, Thanks a lot!!!!

[altenbach]

"Read from spreadsheet file" (or "read delimited spreadsheet" for newer LabVIEW) will get you the data as a 2D array.

(Your post does not show the delimiter between entries. Is it a space or a tab character?)

To get a subset, use "array subset".

[Ying88827]

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altenbach 已寫：

"Read from spreadsheet file" (or "read delimited spreadsheet" for newer LabVIEW) will get you the data as a 2D array.

(Your post does not show the delimiter between entries. Is it a space or a tab character?)

To get a subset, use "array subset".

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Thanks for ur quick response!

Do you mean the separation of colum 1 and 2 in the text file?

The separation between colume 1 and 2 in the text file is like this.

Thanks!

[altenbach]

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@Ying88827 wrote:

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The separation between colume 1 and 2 in the text file is like this.

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OK, your column seperator is the tab character. This is the default, so you don't need to wire it.

[altenbach · Accepted solution]

Again you still have not mentioned your LabVIEW version, but here's one simple solution.