Beispiel #1
0
    def setUp(self):
        self.inputY = {
            "__name__": "GeneralizedState",
            "name": "name",
            "startprob": 1.0,
            "emission": [("0", 0.5), ("00", 0.5)],
            "endprob": 0.5,
            "durations": [(1, 0.5), (2, 0.5)]
        }

        self.HMM = dict()

        for mathType in self.mathTypes:

            hmmInit = {
                "__name__":
                "GeneralizedHMM",
                "states": [],
                "transitions": [{
                    "from": "one",
                    "to": "one",
                    "prob": mathType(0.3)
                }, {
                    "from": "one",
                    "to": "two",
                    "prob": mathType(0.7)
                }, {
                    "from": "two",
                    "to": "one",
                    "prob": mathType(0.5)
                }, {
                    "from": "two",
                    "to": "two",
                    "prob": mathType(0.5)
                }]
            }
            one = GeneralizedState(mathType)
            one.load({
                "__name__": "GeneralizedState",
                "name": "one",
                "startprob": 0.2,
                "endprob": 1.0,
                "emission": [("0", 1.0), ("00", 1.0)],
                "durations": [(1, 0.5), (2, 0.5)]
            })
            two = GeneralizedState(mathType)
            two.load({
                "__name__": "GeneralizedState",
                "name": "two",
                "startprob": 0.8,
                "endprob": 1.0,
                "emission": [("0", 1.0), ("00", 1.0)],
                "durations": [(1, 0.5), (2, 0.5)]
            })
            hmmInit["states"] = [one, two]
            self.HMM[mathType] = GeneralizedHMM(mathType)
            self.HMM[mathType].load(hmmInit)
Beispiel #2
0
def createProfileHMMv1(mathType, consensus, time, backgroundProb, trans):
    length = len(consensus)
    states = []
    transitions = []
    for i in range(length):
        char = consensus[i]
        matchState = State(mathType)
        insertState = State(mathType)
        deleteState1 = GeneralizedState(mathType)
        deleteState2 = GeneralizedState(mathType)
        matchState.load({
            "__name__": "State",
            "name": "m" + str(i),
            "startprob": 0.0,
            "emission": JCModel(char, time, "ACGT"),
            "endprob": 1.0
        })
        insertState.load({
            "__name__": "State",
            "name": "i" + str(i),
            "startprob": 0.0,
            "emission": backgroundProb,
            "endprob": 1.0
        })
        deleteState1.load({
            "__name__": "GeneralizedState",
            "name": "1d" + str(i),
            "startprob": 0.0,
            "emission": [("", 1.0)],
            "endprob": 0.0,
            "durations": [(0, 1.0)]
        })
        deleteState2.load({
            "__name__": "GeneralizedState",
            "name": "2d" + str(i),
            "startprob": 0.0,
            "emission": [("", 1.0)],
            "endprob": 0.0,
            "durations": [(0, 1.0)]
        })
        states.extend([matchState, insertState, deleteState1, deleteState2])
        if i < length - 1:
            transitions.extend([
                {
                    "from": "m" + str(i),
                    "to": "m" + str(i + 1),
                    "prob": trans['MM']
                },
                {
                    "from": "m" + str(i),
                    "to": "i" + str(i + 1),
                    "prob": trans['MI']
                },
                {
                    "from": "m" + str(i),
                    "to": "1d" + str(i + 1),
                    "prob": trans['MD']
                },
                {
                    "from": "1d" + str(i),
                    "to": "1d" + str(i + 1),
                    "prob": trans['DD']
                },
                {
                    "from": "1d" + str(i),
                    "to": "m" + str(i + 1),
                    "prob": trans['DM']
                },
                {
                    "from": "1d" + str(i),
                    "to": "i" + str(i + 1),
                    "prob": trans['DI']
                },
                {
                    "from": "2d" + str(i),
                    "to": "2d" + str(i + 1),
                    "prob": trans['DD']
                },
                {
                    "from": "2d" + str(i),
                    "to": "m" + str(i + 1),
                    "prob": trans['DM']
                },
                {
                    "from": "2d" + str(i),
                    "to": "i" + str(i + 1),
                    "prob": trans['DI']
                },
            ])
        transitions.extend([
            {
                "from": "i" + str(i),
                "to": "i" + str(i),
                "prob": trans['II']
            },
            {
                "from": "i" + str(i),
                "to": "m" + str(i),
                "prob": trans['IM']
            },
            {
                "from": "i" + str(i),
                "to": "1d" + str(i),
                "prob": trans['ID']
            },
        ])
    transitions.extend([
        {
            "from": "Init",
            "to": "m0",
            "prob": trans['_M']
        },
        {
            "from": "Init",
            "to": "i0",
            "prob": trans['_I']
        },
        {
            "from": "Init",
            "to": "1d0",
            "prob": trans['_D']
        },
        {
            "from": "1d" + str(length - 1),
            "to": "m0",
            "prob": trans['_M']
        },
        {
            "from": "1d" + str(length - 1),
            "to": "i0",
            "prob": trans['_I']
        },
        {
            "from": "1d" + str(length - 1),
            "to": "2d0",
            "prob": trans['_D']
        },
        {
            "from": "m" + str(length - 1),
            "to": "Init",
            "prob": 1.0 - trans['MI']
        },
        {
            "from": "m" + str(length - 1),
            "to": "i" + str(length),
            "prob": trans['MI']
        },
        {
            "from": "i" + str(length),
            "to": "i" + str(length),
            "prob": trans['II']
        },
        {
            "from": "i" + str(length),
            "to": "Init",
            "prob": 1.0 - trans['II']
        },
        {
            "from": "2d" + str(length - 1),
            "to": "m0",
            "prob": trans['_M'] / (trans['_M'] + trans['_I'])
        },
        {
            "from": "2d" + str(length - 1),
            "to": "i0",
            "prob": trans['_I'] / (trans['_M'] + trans['_I'])
        },
    ])
    insertState = State(mathType)
    insertState.load({
        "__name__": "State",
        "name": "i" + str(length),
        "startprob": 0.0,
        "emission": backgroundProb,
        "endprob": 1.0
    })
    states.append(insertState)
    initState = GeneralizedState(mathType)
    initState.load({
        "__name__": "GeneralizedState",
        "name": "Init",
        "startprob": 1.0,
        "emission": [("", 1.0)],
        "endprob": 1.0,
        "durations": [(0, 1.0)]
    })
    states.append(initState)
    hmm = GeneralizedHMM(mathType)
    hmm.load({
        "__name__": "GeneralizedHMM",
        "states": states,
        "transitions": transitions,
    })
    hmm.reorderStatesTopologically()
    nm = consensus
    if len(nm) > 20:
        nm = hashlib.md5(consensus).hexdigest()
    return hmm
Beispiel #3
0
def createKRepeatHMM(
    mathType,
    maxK,
    time,
    backgroundProb,
    indelProb,
    indelExtProb,
    repeatProb,
    endProb,
    initEndProb=None,
    silEndProb=None,
):
    if initEndProb == None:
        initEndProb = endProb
    if silEndProb == None:
        silEndProb = endProb
    tp = type(backgroundProb)
    if tp in [dict, defaultdict]:
        backgroundProb = list(backgroundProb.iteritems())
    probabilities = list(backgroundProb)
    alphabet = [x for x, _ in backgroundProb]
    for a in alphabet:
        for b in alphabet:
            probabilities.append((a + b, JCModelDist(a, b, time)))
    states = list()
    transitions = list()

    end_state = GeneralizedState(mathType)
    end_state.load({
        '__name__': 'GeneralizedState',
        'name': 'End',
        'startprob': mathType(0.0),
        'endprob': mathType(1.0),
        'emission': [('', mathType(1.0))],
        'durations': [(0, mathType(1.0))],
    })
    states.append(end_state)

    initTemplate = {
        '__name__': 'GeneralizedState',
        'name': 'I{}',
        'startprob': mathType(0.0),
        'endprob': mathType(0.0),
        'emission': backgroundProb,  #,[('', mathType(1.0))],#backgroundProb,
        'durations': [(1, mathType(1.0))],
    }

    for order in range(1, maxK + 1):
        if order == 1:
            initTemplate['startprob'] = mathType(1.0)
        transitions.append({
            'from': 'I{}'.format(order),
            'to': 'R{}'.format(order),
            'prob': repeatProb,
        })
        transitions.append({
            'from': 'I{}'.format(order),
            'to': 'End',
            'prob': initEndProb,
        })
        self_prob = mathType(1.0)
        self_prob -= repeatProb + initEndProb
        if order < maxK:
            transitions.append({
                'from': 'I{}'.format(order),
                'to': 'I{}'.format(order + 1),
                'prob': self_prob
            })
        initTemplate['name'] = 'I{}'.format(order)
        state = GeneralizedState(mathType)
        state.load(initTemplate)
        states.append(state)

    silentTemplate = {
        '__name__': 'GeneralizedState',
        'name': 'S{}{}',
        'startprob': mathType(0.0),
        'endprob': mathType(0.0),
        'emission': [('', mathType(1.0))],
        'durations': [(0, mathType(1.0))],
    }

    insertTemplate = {
        '__name__': 'GeneralizedState',
        'name': 'S{}{}',
        'startprob': mathType(0.0),
        'endprob': mathType(0.0),
        'emission': backgroundProb,
        'durations': [(1, mathType(1.0))],
    }

    for order in range(1, maxK):
        insertTemplate['name'] = 'SI{}'.format(order)
        state = GeneralizedState(mathType)
        state.load(insertTemplate)
        states.append(state)
        end_p = mathType(1.0)
        if order < maxK - 1:
            transitions.append({
                'from': 'SI{}'.format(order),
                'to': 'SI{}'.format(order + 1),
                'prob': indelExtProb
            })
            end_p -= indelExtProb
        transitions.append({
            'from': 'SI{}'.format(order),
            'to': 'End',
            'prob': silEndProb
        })
        end_p -= silEndProb
        transitions.append({
            'from': 'SI{}'.format(order),
            'to': 'R{}'.format(order + 1),
            'prob': end_p
        })
        silentTemplate['name'] = 'SD{}'.format(order)
        state = GeneralizedState(mathType)
        state.load(silentTemplate)
        states.append(state)
        end_p = mathType(1.0)
        transitions.append({
            'from': 'SD{}'.format(order),
            'to': 'End',
            'prob': silEndProb,
        })
        end_p -= silEndProb
        if order < maxK - 1:
            transitions.append({
                'from': 'SD{}'.format(order + 1),
                'to': 'SD{}'.format(order),
                'prob': indelExtProb
            })
        if order > 1:
            end_p -= indelExtProb
        transitions.append({
            'from': 'SD{}'.format(order),
            'to': 'R{}'.format(order),
            'prob': end_p
        })

    repeatTemplate = {
        '__name__': 'HighOrderState',
        'name': 'R{}',
        'startprob': mathType(0.0),
        'endprob': mathType(0.0),
        'emission': probabilities,
        'durations': [(1, mathType(1.0))],
        'order': 0
    }
    for order in range(1, maxK + 1):
        repeatTemplate['name'] = 'R{}'.format(order)
        repeatTemplate['order'] = order
        state = HighOrderState(mathType)
        state.load(repeatTemplate)
        states.append(state)
        stayprob = mathType(1.0)
        transitions.append({
            'from': 'R{}'.format(order),
            'to': 'End',
            'prob': endProb,
        })
        stayprob -= endProb
        if order > 1:
            transitions.append({
                'from': 'R{}'.format(order),
                'to': 'SD{}'.format(order - 1),
                'prob': indelProb,
            })
            stayprob -= indelProb
        if order < maxK:
            transitions.append({
                'from': 'R{}'.format(order),
                'to': 'SI{}'.format(order),
                'prob': indelProb,
            })
            stayprob -= indelProb
        transitions.append({
            'from': 'R{}'.format(order),
            'to': 'R{}'.format(order),
            'prob': stayprob,
        })
    hmm = GeneralizedHMM(mathType)
    hmm.load({
        '__name__': 'GeneralizedHMM',
        'states': states,
        'transitions': transitions,
    })
    for i in range(len(hmm.states)):
        hmm.states[i].normalizeTransitions()
    hmm.reorderStatesTopologically()
    with Open(
            'submodels/newK-{}-{}-{}-{}.js'.format(maxK, time, indelProb,
                                                   repeatProb), 'w') as f:
        print f

        def LogNumToJson(obj):
            if isinstance(obj, LogNum):
                return '{0}'.format(str(float(obj)))
            raise TypeError

        json.dump(hmm.toJSON(),
                  f,
                  indent=4,
                  sort_keys=True,
                  default=LogNumToJson)
    return hmm
Beispiel #4
0
def createProfileHMMv2(mathType, consensus, time, backgroundProb, trans):
    if consensus == None or len(consensus) == 0:
        raise "Wrong consensus: {}".format(consensus)
    length = len(consensus)
    states = []
    transitions = []
    for i in range(length):
        char = consensus[i]
        matchState = State(mathType)
        insertState = State(mathType)
        deleteState1 = GeneralizedState(mathType)
        deleteState2 = GeneralizedState(mathType)
        matchState.load({
            "__name__": "State",
            "name": "m" + str(i),
            "startprob": 0.0,
            "emission": JCModel(char, time, "ACGT"),
            "endprob": 0.0
        })
        insertState.load({
            "__name__": "State",
            "name": "i" + str(i),
            "startprob": 0.0,
            "emission": backgroundProb,
            "endprob": 0.0
        })
        deleteState1.load({
            "__name__": "GeneralizedState",
            "name": "1d" + str(i),
            "startprob": 0.0,
            "emission": [("", 1.0)],
            "endprob": 0.0,
            "durations": [(0, 1.0)]
        })
        deleteState2.load({
            "__name__": "GeneralizedState",
            "name": "2d" + str(i),
            "startprob": 0.0,
            "emission": [("", 1.0)],
            "endprob": 0.0,
            "durations": [(0, 1.0)]
        })
        states.extend([matchState, insertState, deleteState1, deleteState2])
        if i < length - 1:
            transitions.extend([
                {
                    "from": "m" + str(i),
                    "to": "m" + str(i + 1),
                    "prob": trans['MM']
                },
                {
                    "from": "m" + str(i),
                    "to": "i" + str(i + 1),
                    "prob": trans['MI']
                },
                {
                    "from": "m" + str(i),
                    "to": "1d" + str(i + 1),
                    "prob": trans['MD']
                },
                {
                    "from": "1d" + str(i),
                    "to": "1d" + str(i + 1),
                    "prob": trans['DD']
                },
                {
                    "from": "1d" + str(i),
                    "to": "m" + str(i + 1),
                    "prob": trans['DM']
                },
                {
                    "from": "1d" + str(i),
                    "to": "i" + str(i + 1),
                    "prob": trans['DI']
                },
                {
                    "from": "2d" + str(i),
                    "to": "2d" + str(i + 1),
                    "prob": trans['DD']
                },
                {
                    "from": "2d" + str(i),
                    "to": "m" + str(i + 1),
                    "prob": trans['DM']
                },
                {
                    "from": "2d" + str(i),
                    "to": "i" + str(i + 1),
                    "prob": trans['DI']
                },
            ])
        transitions.extend([
            {
                "from": "i" + str(i),
                "to": "i" + str(i),
                "prob": trans['II']
            },
            {
                "from": "i" + str(i),
                "to": "m" + str(i),
                "prob": trans['IM']
            },
            {
                "from": "i" + str(i),
                "to": "1d" + str(i),
                "prob": trans['ID']
            },
        ])
    transitions.extend([
        {
            "from": "Init",
            "to": "m0",
            "prob": trans['_M']
        },
        {
            "from": "Init",
            "to": "i0",
            "prob": trans['_I']
        },
        {
            "from": "Init",
            "to": "1d0",
            "prob": trans['_D']
        },
        {
            "from": "Init",
            "to": "End",
            "prob": trans['_E']
        },
        {
            "from": "1d" + str(length - 1),
            "to": "m0",
            "prob": trans['DRM']
        },
        {
            "from": "1d" + str(length - 1),
            "to": "End",
            "prob": trans['DRE']
        },
        {
            "from": "1d" + str(length - 1),
            "to": "i0",
            "prob": trans['DRI']
        },
        {
            "from": "1d" + str(length - 1),
            "to": "2d0",
            "prob": trans['DRD']
        },
        {
            "from": "m" + str(length - 1),
            "to": "Init",
            "prob": trans['MR_']
        },
        {
            "from": "m" + str(length - 1),
            "to": "End",
            "prob": trans['MRE']
        },
        {
            "from": "m" + str(length - 1),
            "to": "i" + str(length),
            "prob": trans['MRI']
        },
        {
            "from": "i" + str(length),
            "to": "i" + str(length),
            "prob": trans['IRI']
        },
        {
            "from": "i" + str(length),
            "to": "Init",
            "prob": trans['IR_']
        },
        {
            "from": "i" + str(length),
            "to": "End",
            "prob": trans['IRE']
        },
    ])
    insertState = State(mathType)
    insertState.load({
        "__name__": "State",
        "name": "i" + str(length),
        "startprob": 0.0,
        "emission": backgroundProb,
        "endprob": 0.0
    })
    states.append(insertState)
    initState = GeneralizedState(mathType)
    initState.load({
        "__name__": "GeneralizedState",
        "name": "Init",
        "startprob": 1.0,
        "emission": [("", 1.0)],
        "endprob": 0.0,
        "durations": [(0, 1.0)]
    })
    states.append(initState)
    endState = GeneralizedState(mathType)
    endState.load({
        "__name__": "GeneralizedState",
        "name": "End",
        "startprob": 0.0,
        "emission": [("", 1.0)],
        "endprob": 1.0,
        "durations": [(0, 1.0)],
    })
    states.append(endState)
    remstate = '2d' + str(length - 1)
    states = [state for state in states if state.stateName != remstate]
    transitions = [
        tran for tran in transitions
        if tran['to'] != remstate and tran['from'] != remstate
    ]
    hmm = GeneralizedHMM(mathType)
    hmm.load({
        "__name__": "GeneralizedHMM",
        "states": states,
        "transitions": transitions,
    })
    for i in range(len(hmm.states)):
        hmm.states[i].normalizeTransitions()
    hmm.reorderStatesTopologically()
    nm = consensus
    if len(nm) > 20:
        nm = hashlib.md5(consensus).hexdigest()
    #with Open('submodels/{0}.js'.format(nm), 'w') as f:
    #    def LogNumToJson(obj):
    #        if isinstance(obj, LogNum):
    #            return '{0} {1}'.format(str(float(obj)),str(obj.value))
    #        raise TypeError
    #    json.dump(hmm.toJSON(), f, indent=4, sort_keys=True,
    #              default=LogNumToJson)
    return hmm