docstr: Calculates the new centroids excluding the reference utterance
docstr_tok: ["Calculates","the","new","centroids","excluding","the","reference","utterance"]
code: def calc_new_centroids(self, dvecs, centroids, spkr, utt):
      """
      Calculates the new centroids excluding the reference utterance
      """
      excl = torch.cat((dvecs[spkr, :utt], dvecs[spkr, utt + 1 :]))
      excl = torch.mean(excl, 0)
      new_centroids = []
      for i, centroid in enumerate(centroids):
          if i == spkr:
              new_centroids.append(excl)
          else:
              new_centroids.append(centroid)
      return torch.stack(new_centroids)
  
imports: import torch
  import torch.nn.functional
  from torch import nn
label_desc: Use image node_id 2 for calling the GE2ELoss obj's underlying member method code with example usage: obj.calc_new_centroids(dvecs, centroids, spkr, utt) and returns: torch