Exemplo n.º 1
0
def bestCentroid(onelist):
    centroids = list()
    med = list()
    a=1
    cont=0
    while (a==1):

        c1, c2, c3, cent1, cent2, cent3 = funcoes.centroide(onelist)

        a = 0
        b = 0
        c = 0

        try:
            for i in cent1:
                a= a + funcoes.distanciaeuclidiana(c1,i)
            med1= a/len(cent1)
        except(ZeroDivisionError):
            med1 = 6

        try:
            for i in cent2:
                b= b + funcoes.distanciaeuclidiana(c2,i)
            med2= b/len(cent2)
        except(ZeroDivisionError):
            med2 = 6

        try:
            for i in cent3:
                c= c + funcoes.distanciaeuclidiana(c3,i)
            med3= c/len(cent3)
        except(ZeroDivisionError):
            med3 = 6

        media = (med1+med2+med3)/3
        cont = cont+1
        #print(cont, media)
        if (media<= 3.5):
            a = 0
            centroids.append(c1)
            centroids.append(c2)
            centroids.append(c3)
            medias = media
            med.append(med1)
            med.append(med2)
            med.append(med3)
        else:
            a=1

    return (medias,centroids,med)
Exemplo n.º 2
0
def bestCentroid(onelist):
    centroids = list()
    medias = list()
    for it in range(0,600):

        c1, c2, c3, cent1, cent2, cent3 = funcoes.centroide(onelist)

        centroids.append([c1,c2,c3])
        a = 0
        b = 0
        c = 0

        try:
            for i in cent1:
                a= a + funcoes.distanciaeuclidiana(c1,i)
            med1= a/len(cent1)
        except(ZeroDivisionError):
            med1 = 6

        try:
            for i in cent2:
                b= b + funcoes.distanciaeuclidiana(c2,i)
            med2= b/len(cent2)
        except(ZeroDivisionError):
            med2 = 6

        try:
            for i in cent3:
                c= c + funcoes.distanciaeuclidiana(c3,i)
            med3= c/len(cent3)
        except(ZeroDivisionError):
            med3 = 6

        media = (med1+med2+med3)/3
        medias.append(media)

    
    newlist= list(zip(medias,centroids))
    newlist.sort(key=lambda tup: tup[0])

    return (newlist[0])