Hello
look at the examples that use spreadsheet string to array.
In fact read the whole file into one string, pass that string to
spreadsheet string to array and you should be ready.
A possible problem could be the element separator.
Default it is a tab.
connect an array of doubles (or integers).
When your data is equidistant simply feed the appropriate data to the
fourier transform.
Look at the fft vi for what you need more.
succes
Mr. Doowon Choi wrote:
>
> I am a beginner to Labview.
> There is a 1000 by 2 matrix in a file(ASCII) which should be extracted to
> the Labview program. This file contains a signal with time base, which is to
> transformed to the frequency domain. What I would like to do is,
> 1. Graph of the original signal (like a chart in Excel) -
time based
> 2. Graph of the FFT - frequency based
>
> What I wonder is
> 3. how to extract the original file, and what type it has to be converted
> to for the signal processing.
> 4. whether the range of the time is changeable for the FFT by using the
> mouse on the graph 1.
> 5. whether the above procedure is done sequentially for tens of files.
>
> Please help me.....
> Thanks.
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