RunasSudo/pyRCV2
Archived
1
Fork 0
Code Issues Pull Requests Activity

Avoid excessive rounding for unweighted inclusive Gregory in non-integer modes

Browse Source
This commit is contained in:
RunasSudo 2020-10-19 00:58:06 +11:00
parent f8ee464421
commit 77d773605a
Signed by: RunasSudo
GPG Key ID: 7234E476BF21C61A
4 changed files with 26 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
html/index.html
View File

@ -39,7 +39,7 @@
<select id="selPreset" onchange="changePreset()"> <select id="selPreset" onchange="changePreset()">
<option value="scottish" selected>Scottish STV</option> <option value="scottish" selected>Scottish STV</option>
<option value="stvc">pyRCV STV-C</option> <option value="stvc">pyRCV STV-C</option>
<option value="senate">Australian Senate STV</option> <!--<option value="senate">Australian Senate STV</option>-->
<option value="wright">Wright STV</option> <option value="wright">Wright STV</option>
</select> </select>
</label> </label>

4
pyRCV2/method/base_stv.py
View File

@ -458,9 +458,9 @@ class BaseUIGSTVCounter(BaseSTVCounter):
# Credit votes # Credit votes
for candidate, cand_votes in next_preferences.items(): for candidate, cand_votes in next_preferences.items():
__pragma__('opov') __pragma__('opov')
self.candidates[candidate].transfers += Num(cand_votes.__floor__().pp(0)) self.candidates[candidate].transfers += cand_votes.to_num()
__pragma__('noopov') __pragma__('noopov')
__pragma__('opov') __pragma__('opov')
self.exhausted.transfers += Num(next_exhausted.__floor__().pp(0)) self.exhausted.transfers += next_exhausted.to_num()
__pragma__('noopov') __pragma__('noopov')

14
pyRCV2/numbers/rational_js.py
View File

@ -23,9 +23,21 @@ class Rational:
self.impl = bigRat(val) self.impl = bigRat(val)
def pp(self, dp): def pp(self, dp):
"""Pretty print to specified number of decimal places""" """
Pretty print to specified number of decimal places
This will fail for numbers which cannot be represented as a JavaScript number
"""
return self.impl.valueOf().toFixed(dp) return self.impl.valueOf().toFixed(dp)
def to_num(self):
"""
Convert to an instance of Num
"""
from pyRCV2.numbers import Num
__pragma__('opov')
return Num(self.impl.numerator.toString()) / Num(self.impl.denominator.toString())
__pragma__('noopov')
def __add__(self, other): def __add__(self, other):
return Rational(self.impl.add(other.impl)) return Rational(self.impl.add(other.impl))
def __sub__(self, other): def __sub__(self, other):

11
pyRCV2/numbers/rational_py.py
View File

@ -26,9 +26,18 @@ class Rational:
self.impl = Fraction(val) self.impl = Fraction(val)
def pp(self, dp): def pp(self, dp):
"""Pretty print to specified number of decimal places""" """
Pretty print to specified number of decimal places
"""
return format(self.impl, '.{}f'.format(dp)) return format(self.impl, '.{}f'.format(dp))
def to_num(self):
"""
Convert to an instance of Num
"""
from pyRCV2.numbers import Num
return Num(self.impl.numerator) / Num(self.impl.denominator)
def __add__(self, other): def __add__(self, other):
return Rational(self.impl + other.impl) return Rational(self.impl + other.impl)
def __sub__(self, other): def __sub__(self, other):