# 4.6.4.2.2. eqcorrscan.core.subspace.multi

`eqcorrscan.core.subspace.``multi`(stream)

  Internal multiplexer for multiplex_detect.

  Parameters: | stream (obspy.core.stream.Stream) Stream to multiplex
  Returns: | trace of multiplexed data
  Return type: | obspy.core.trace.Trace

  Maps a standard multiplexed stream of seismic data to a single traces of multiplexed data as follows:

  Input: x = [x1, x2, x3, ...] y = [y1, y2, y3, ...] z = [z1, z2, z3, ...]

  Output: xyz = [x1, y1, z1, x2, y2, z2, x3, y3, z3, ...]