本文整理汇总了Python中cogent.core.usage.BaseUsage.distance方法的典型用法代码示例。如果您正苦于以下问题：Python BaseUsage.distance方法的具体用法？Python BaseUsage.distance怎么用？Python BaseUsage.distance使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类cogent.core.usage.BaseUsage的用法示例。
在下文中一共展示了BaseUsage.distance方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test_distance
# 需要导入模块: from cogent.core.usage import BaseUsage [as 别名]
# 或者: from cogent.core.usage.BaseUsage import distance [as 别名]
def test_distance(self):
"""BaseUsage distance() should return dist between two BUs"""
#absolute numbers, will normalize to calculate distance
self.assertFloatEqual(BaseUsage('GC').distance(BaseUsage('AU')),1)
self.assertFloatEqual(BaseUsage('AU').distance(BaseUsage('GC')),1)
self.assertFloatEqual(BaseUsage('GCAU').distance(BaseUsage('AUAU')),.5)
#should work even against dict with 'T's
self.assertFloatEqual(BaseUsage('GCAU').distance(\
BaseUsage({'A':2,'T':2,'C':0,'G':0,})),.5)
#rounding error
self.assertEqual(BaseUsage('ACG').distance(BaseUsage('CCGGAA')),0)
#normalized - as in unit simplex
ag = BaseUsage('AG')
ag.normalize()
uc = BaseUsage('UC')
uc.normalize()
self.assertFloatEqual(ag.distance(uc),1)
self.assertFloatEqual(BaseUsage({'A':0.4,'G':0.1,'C':0.4,'U':0.1})\
.distance(BaseUsage({'A':0.1,'G':0.4,'U':0.4,'C':0.1})),0.6)
self.assertFloatEqual(BaseUsage({'A':0.25,'G':0.25,'C':0.25,'U':0.25})\
.distance(BaseUsage({'A':0.25,'G':0.25,'U':0.25,'C':0.25})),0.0)
self.assertFloatEqual(BaseUsage({'A':0.245,'G':0.255,'C':0.245,\
'U':0.255}).distance(BaseUsage({'A':0.255,'G':0.245,'U':0.245,\
'C':0.255})),0.02)
self.assertFloatEqual(BaseUsage({'A':0.245,'G':0.255,'C':0.245,\
'U':0.255}).distance(BaseUsage({'A':0.25,'G':0.25,'U':0.25,\
'C':0.25})),0.01)
self.assertFloatEqual(BaseUsage({'A':0.248,'G':0.252,'C':0.248,\
'U':0.252}).distance(BaseUsage({'A':0.25,'G':0.25,'U':0.25,\
'C':0.25})),0.004)