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# scipy.signal.argrelextrema

`scipy.signal.``argrelextrema`(data, comparator, axis=0, order=1, mode='clip')

  Calculate the relative extrema of data.

  New in version 0.11.0.

  Parameters : | data : ndarray Array in which to find the relative extrema. comparator : callable Function to use to compare two data points. Should take 2 numbers as arguments. axis : int, optional Axis over which to select from data. Default is 0. order : int, optional How many points on each side to use for the comparison to consider `comparator(n, n+x)` to be True. mode : str, optional How the edges of the vector are treated. ‘wrap’ (wrap around) or ‘clip’ (treat overflow as the same as the last (or first) element). Default is ‘clip’. See `numpy.take`.
  Returns : | extrema : ndarray Indices of the extrema, as an array of integers (same format as np.argmin, np.argmax).

  See also

  `argrelmin`, `argrelmax`

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