<html><head></head><body><div style="color:#000; background-color:#fff; font-family:Courier New, courier, monaco, monospace, sans-serif;font-size:16px"><div><span></span></div><div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1498257198999_3152">No I didn't select the minimum phase checkbox. This is great news and you saved me a lot of reprocessing...thanks, Andreas!</div><div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1498257198999_3154"><br></div><div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1498257198999_3155">Davida<br><br></div><div class="yahoo_quoted" id="yui_3_16_0_ym19_1_1498257198999_3099" style="display: block;"> <div id="yui_3_16_0_ym19_1_1498257198999_3098" style="font-family: Courier New, courier, monaco, monospace, sans-serif; font-size: 16px;"> <div id="yui_3_16_0_ym19_1_1498257198999_3097" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div id="yui_3_16_0_ym19_1_1498257198999_3104" dir="ltr"> <font id="yui_3_16_0_ym19_1_1498257198999_3103" face="Arial" size="2"> <hr size="1" id="yui_3_16_0_ym19_1_1498257198999_3105"> <b><span style="font-weight:bold;">From:</span></b> Andreas Widmann <widmann@uni-leipzig.de><br> <b><span style="font-weight: bold;">To:</span></b> Davida Streett <davida_s2000@yahoo.com> <br><b><span style="font-weight: bold;">Cc:</span></b> Eeglablist <eeglablist@sccn.ucsd.edu><br> <b><span style="font-weight: bold;">Sent:</span></b> Friday, June 23, 2017 11:45 AM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [Eeglablist] Basic FIR filter and SIFT<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_ym19_1_1498257198999_3096"><br><div id="yui_3_16_0_ym19_1_1498257198999_3095" dir="ltr">Hi Davida,<div class="yqt4134313168" id="yqtfd76311"><br clear="none"><br clear="none">> I have processed several datasets with EEGLAB tools' "Basic FIR filter (new, default)". I used 0.5Hz lower edge and 50Hz upper edge followed by additional processing such as ICA. I am now preparing to use this data with the SIFT toolbox for the first time. I expect to look at Direct DTF, Partial Coherence, Complex Spectral Density, and probably other things too. Is there an issue with the filtering method not being zero-phase (acausal)?</div><br clear="none">If you used default settings (i.e. NOT manually selected the "Use minimum phase..." checkbox) the "Basic FIR filter (new, default)" actually implements a zero-phase filter. Did you manually select the "minimum phase" checkbox and why?<br clear="none"><br clear="none">Best,<br clear="none">Andreas</div><br><br></div> </div> </div> </div></div></body></html>