<div class="gmail_quote">Hello, I used Tools->Filter the data->Basic FIR filter to filter my EEG data.<div><br></div><div>I found that, if I exchange the order of the pass band (use <i>Lower edge of the frequency pass band</i> first, then use <i>Higher</i> <i>edge of the frequency pass band, </i>or use <i>Higher</i> <i>edge of the frequency pass band </i>first, then use
<i>Lower</i> <i>edge of the frequency pass band</i>), the results are different from each other. </div><div><br></div><div>Which order is better? Or may I use low pass and high pass simultaneously?</div>
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