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usrp/fft.c (do_fft): don't output the sample number when dumping
gnuplot already maintains the sample count in $0
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@ -175,7 +175,7 @@ static void do_fft(int skip, int dump, int low, int high, double threshold,
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if (dump) {
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for (i = 0; i != n/split; i++)
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printf("%d %g\n", i,
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printf("%g\n",
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10*log(res[(i+(n/split)/2) % (n/split)])/log(10));
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} else {
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/* @@@ need to think about supporting averaged FFT here later */
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