dispersion_analysis.py: output nonzero stats of matrices
dispersion_analysis.py: output nonzero stats of matrices

sfepy/sfepy,vlukes/sfepy,rc/sfepy,sfepy/sfepy,rc/sfepy,vlukes/sfepy,rc/sfepy,sfepy/sfepy,vlukes/sfepy,BubuLK/sfepy,BubuLK/sfepy,BubuLK/sfepy