Add vq

[takenori-y]

No description provided.

[codecov]

Codecov Report

Merging #19 (a90b435) into master (0347f63) will decrease coverage by 0.03%.
The diff coverage is 98.18%.

@@            Coverage Diff             @@
##           master      #19      +/-   ##
==========================================
- Coverage   99.75%   99.72%   -0.03%     
==========================================
  Files         136      140       +4     
  Lines        3210     3265      +55     
==========================================
+ Hits         3202     3256      +54     
- Misses          8        9       +1     

Flag	Coverage Δ
unittests	99.72% <98.18%> (-0.03%)	⬇️

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Impacted Files	Coverage Δ
diffsptk/core/freqt.py	100.00% <ø> (ø)
diffsptk/core/sopr.py	100.00% <ø> (ø)
diffsptk/core/vq.py	95.65% <95.65%> (ø)
diffsptk/core/__init__.py	100.00% <100.00%> (ø)
diffsptk/core/ivq.py	100.00% <100.00%> (ø)
tests/test_ivq.py	100.00% <100.00%> (ø)
tests/test_vq.py	100.00% <100.00%> (ø)

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