documentation / faq / spectral /
Spectral analysis questions
- Does it make sense to subtract the ERP prior to time frequency analysis, to distinguish evoked from induced power?
- How can I compute inter-trial coherence?
- How can I do time-frequency analysis on continuous data?
- How does mtmconvol work?
- How to interpret the sign of the phase slope index?
- In what way can frequency domain data be represented in FieldTrip?
- What convention is used to define absolute phase in 'mtmconvol', 'wavelet' and 'mtmfft'?
- What does "padding not sufficient for requested frequency resolution" mean?
- What is meant by time-frequency trade off?
- What is the difference between coherence and coherency?
- Why am I not getting integer frequencies?
- Why does my output.freq not match my cfg.foi when using 'mtmconvol' in ft_freqanalysis?
- Why does my output.freq not match my cfg.foi when using 'mtmfft' in ft_freqanalysis
- Why does my output.freq not match my cfg.foi when using 'wavelet' (formerly 'wltconvol') in ft_freqanalysis?
- Why does my TFR contain NaNs?
- Why does my TFR look strange (part I, demeaning)?
- Why does my TFR look strange (part II, detrending)?
- Why is the largest peak in the spectrum at the frequency which is 1/segment length?