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Hi JB,
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<div class="">This is indeed nothing to worry about. Your sources are right.</div>
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<div class="">Best wishes,</div>
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<div class="">JM</div>
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<div class="">On 16 Feb 2018, at 10:38, Jean-Baptiste Eichenlaub <<a href="mailto:jb.eichenlaub@gmail.com" class="">jb.eichenlaub@gmail.com</a>> wrote:</div>
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Dear Fieldtripers,<br class="">
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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).
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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 class="">
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<div class="">Should I be concerned? <br class="">
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<div class="">Thanks!<br class="">
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<div class="">Best,<br class="">
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Warning: correcting numerical inaccuracy in the time axes <br class="">
> In ft_warning (line 184)<br class="">
In ft_datatype_raw>fixtimeaxes (line 310)<br class="">
In ft_datatype_raw (line 262)<br class="">
In ft_checkdata (line 236)<br class="">
In ft_freqanalysis (line 217)<br class="">
In DefineSleepPeriodsBlock><wbr class="">computeSpectrumAveragedChan_<wbr class="">fieldtrip (line 237)<br class="">
In DefineSleepPeriodsBlock (line 91) <br class="">
Warning: correcting numerical inaccuracy in the time axes <br class="">
> In ft_warning (line 184)<br class="">
In ft_datatype_raw>fixtimeaxes (line 310)<br class="">
In ft_datatype_raw (line 262)<br class="">
In ft_checkdata (line 236)<br class="">
In ft_selectdata (line 134)<br class="">
In ft_freqanalysis (line 232)<br class="">
In DefineSleepPeriodsBlock><wbr class="">computeSpectrumAveragedChan_<wbr class="">fieldtrip (line 237)<br class="">
In DefineSleepPeriodsBlock (line 91) <br class="">
the call to "ft_selectdata" took 1 seconds<br class="">
processing trials<br class="">
processing trial 1199/1199 nfft: 2048 samples, datalength: 2000 samples, 1 tapers</span><br class="">
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