spectral analysis from a file

[komatireddy]

I have data stored in a file.. how to read data from that file and give that as input to spectral measurements function

Thanks..

Reddy

[Dennis_Knutson]

How is the data stored? What function did you use to write it? There are several functions for reading files - Read From Spreadsheet file, Read Waveform from File, Read Lines From File, Read LabVIEW Measurement File, Read Characters From File, etc. Provide some more details or  you can attach a copy of a data file so that someone can provide a little more help. Basically, you need to create to extract the Y values into an array and get the sampling rate from the file. Once you've done that, you can pass the information to an analysis routine as a waveform or signals data type.

[LV_Pro]

You would read in the files values into a numeric array, which would then be wired into the analysis function. If the file is a "spreadsheet formatted" (tab delimited or comma seperated variables) one the "read from spreadsheet file" function will produce the numeric array directly.

P.M.

[komatireddy]

The Data is stored in a LVM file .

[Dennis_Knutson]

Then use the Read LabVIEW Measurements File to get the data. It will return a Signals data type that you can wire to Spectral Measurements Express VI.

[komatireddy]

Yeah.. i did that.. Its working..

Thanks to Dennis and Lv_Pro for ur time..  Thanks again

Reddy