<div dir="ltr"><div><div><div><br></div>Dear Fieldtripers,<br><br></div>After having segmented continuous EEG data (ft_redefinetrial, cfg.length = 2; cfg.overlap = 0.5), I compute the power spectrum for each trial/segment (ft_freqanalysis). <br>However, I am getting the following warning message (see below in blue). Based on several sources, it seems to be explained by "the inaccuracy in binary representation of floating point values". I do not get the error message with
cfg.length = 5 in the previous step (ft_redefinetrial). <br></div><div>Should I be concerned? <br></div><div><br></div><div>Thanks!<br></div><div>Best,<br></div><div><span style="color:rgb(0,0,255)"><br>Warning: correcting numerical inaccuracy in the time axes <br>> In ft_warning (line 184)<br> In ft_datatype_raw>fixtimeaxes (line 310)<br> In ft_datatype_raw (line 262)<br> In ft_checkdata (line 236)<br> In ft_freqanalysis (line 217)<br> In DefineSleepPeriodsBlock><wbr>computeSpectrumAveragedChan_<wbr>fieldtrip (line 237)<br> In DefineSleepPeriodsBlock (line 91) <br>Warning: correcting numerical inaccuracy in the time axes <br>> In ft_warning (line 184)<br> In ft_datatype_raw>fixtimeaxes (line 310)<br> In ft_datatype_raw (line 262)<br> In ft_checkdata (line 236)<br> In ft_selectdata (line 134)<br> In ft_freqanalysis (line 232)<br> In DefineSleepPeriodsBlock><wbr>computeSpectrumAveragedChan_<wbr>fieldtrip (line 237)<br> In DefineSleepPeriodsBlock (line 91) <br>the call to "ft_selectdata" took 1 seconds<br>processing trials<br>processing trial 1199/1199 nfft: 2048 samples, datalength: 2000 samples, 1 tapers</span><br><br></div></div>