emd.imftools.check_decreasing_freq#
- emd.imftools.check_decreasing_freq(IF, mode='proportion')[source]#
Similar to method 1 in http://dx.doi.org/10.11601/ijates.v5i1.139.
- Parameters:
- IFndarray
nsamples x nimfs array of instantaneous frequency values
- mode{‘proportion’, ‘sum’, ‘full’}
Flag indicating whether the proportion of overlapping samples (‘proportion’, default), the total number of overlapping samples (‘sum’) or the full nsamples x nimfs-1 array (‘full’) will be returned
- Returns:
- metricndarray
nimfs-1 length vector containing the proportion of samples in which the IF of adjacent pairs of IMFs overlapped. This is returned per-sample if input squash_time is None.