Analysis of mean power ratio in MEMA

[lkorczowski]

• [x] mean power ratio
• [x] pytest
• [x] check if there is at least one in numerator and denominator
• [x] add to reporting

closes #51

[codecov[bot]]

Codecov Report

Merging #60 into master will not change coverage. The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master       #60   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           11        11           
  Lines          635       645   +10     
=========================================
+ Hits           635       645   +10     

Impacted Files	Coverage Δ
tinnsleep/reports.py	100.00% <100.00%> (ø)
tinnsleep/signal.py	100.00% <100.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update 63d4d68...62e6af3. Read the comment docs.

[lkorczowski]

@RobinGuillard before doing power ratio analysis, we should get 250 Hz from #61

Standing by

[RobinGuillard]

Everything ready for merge on #61, please apply solution of #63 and proceed to merge