6.2.4.1.5. eqcorrscan.utils.clustering.corr_cluster

eqcorrscan.utils.clustering.corr_cluster(trace_list, thresh=0.9)[source]

Group traces based on correlations above threshold with the stack.

Will run twice, once with 80% of threshold threshold to remove large outliers that would negatively affect the stack, then again with your threshold.

Parameters:
  • trace_list (list) – List of obspy.core.stream.Trace to compute similarity between
  • thresh (float) – Correlation threshold between -1-1
Returns:

numpy.ndarray of bool of whether that trace correlates well enough (above your given threshold) with the stack.

Note

We recommend that you align the data before computing the clustering, e.g., the P-arrival on all templates for the same channel should appear at the same time in the trace. See the eqcorrscan.utils.stacking.align_traces() function for a way to do this.