class_docstr: Class that defines linalg operation on an array
  
  svd version, where svd is taken on original data array, if
  or when it matters
  
  no spectral cutoff in first version
code: def meigh(self):
      evecs = self.v.T
      evals = self.s**2
      return evals, evecs
  
imports: import numpy
  from scipy import linalg
  from statsmodels.tools.decorators import cache_readonly
label_desc: Use image node_id 4 for calling the SvdArray obj's underlying member method code with example usage: obj.meigh() and returns: evals,  evecs