add show method

[dehann]

No description provided.

[codecov-io]

Codecov Report

Merging #63 (1ecbfe7) into master (58e1406) will decrease coverage by 0.69%.
The diff coverage is 86.20%.

@@            Coverage Diff             @@
##           master      #63      +/-   ##
==========================================
- Coverage   70.95%   70.26%   -0.70%     
==========================================
  Files           9        9              
  Lines        1002     1009       +7     
==========================================
- Hits          711      709       -2     
- Misses        291      300       +9     

Impacted Files	Coverage Δ
src/KDE01.jl	87.50% <0.00%> (-6.89%)	⬇️
src/CrossValidation.jl	98.33% <98.03%> (ø)
src/MSGibbs01.jl	85.25% <0.00%> (-0.93%)	⬇️

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