Add WeightedChoice() && WeightedShuffle()

[codecov[bot]]

Codecov Report

Merging #78 into master will decrease coverage by 0.67%. The diff coverage is 86.95%.

@@            Coverage Diff             @@
##           master      #78      +/-   ##
==========================================
- Coverage   95.22%   94.54%   -0.68%     
==========================================
  Files          22       23       +1     
  Lines         816      880      +64     
==========================================
+ Hits          777      832      +55     
- Misses         29       35       +6     
- Partials       10       13       +3

Impacted Files	Coverage Δ
yrand/randelem.go	93.1% <100%> (+0.51%)	:arrow_up:
yrand/common.go	94.73% <100%> (+1.4%)	:arrow_up:
yrand/weight.go	83.33% <83.33%> (ø)

[codeclimate[bot]]

Code Climate has analyzed commit 880eef7b and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 88.2% (50% is the threshold).

This pull request will bring the total coverage in the repository to 95.8% (-0.7% change).

View more on Code Climate.

[an63]

Here is an overview of what got changed by this pull request:

Issues
======
- Added 1

Complexity increasing per file
==============================
- yrand/weight.go  14
- yrand/weight_test.go  15

Clones added
============
- yrand/weight_test.go  8

Clones removed
==============
+ yrand/randstr_test.go  -2

See the complete overview on Codacy