plotLoadings, sort

[TuomasBorman]

#183

[codecov]

Codecov Report

Attention: Patch coverage is 48.48485% with 17 lines in your changes missing coverage. Please review.

Project coverage is 58.04%. Comparing base (750342d) to head (a74b99b).
Report is 6 commits behind head on devel.

Files with missing lines	Patch %	Lines
R/plotLoadings.R	48.48%	17 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##            devel     #189      +/-   ##
==========================================
- Coverage   58.76%   58.04%   -0.72%     
==========================================
  Files          20       21       +1     
  Lines        3082     3473     +391     
==========================================
+ Hits         1811     2016     +205     
- Misses       1271     1457     +186     

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[TuomasBorman]

See the discussion in OMA: microbiome/OMA#146

It might be that getNeatOrder() will be removed and replaced by utilization of seriation package. In that case, this PR must be modified to use seriation package as well. That is rather small change as the functionality for sorting the loadings is already here but must be taken into account.

We could also consider using seriation package here in any case.