def centMel(phr):
keystr = lv.bestkey(phr)
root = int(phrase.roots[string.lower(keystr.split(" ")[0])])
keyl = phrase.key(keystr)
ind = keyl.index(root)
top3 = [keyl[ind]%12, keyl[ind+4]%12, keyl[ind+2]]
ns = []
ts = []
for i in range(len(phr)):
if phr.n[i] < 0:
continue
ns.append(phr.n[i])
ts.append(phr.t[i])
if i < len(phr.t)-1 and phr.n[i+1] == -1:
t = ts.pop()
ts.append(t + phr.t[i+1])
inbest = 0
ttot = 0
for i in range(len(ns)):
if ns[i] in top3:
inbest += ts[i]
ttot += ts[i]
return inbest/ttot
def macroMel(phr):
key = phrase.key(lv.bestkey(phr))
ns = []
ts = []
for i in range(len(phr)):
if phr.n[i] < 0:
continue
ns.append(phr.n[i])
ts.append(phr.t[i])
if i < len(phr.t)-1 and phr.n[i+1] == -1:
t = ts.pop()
ts.append(t + phr.t[i+1])
inkey = 0
ttot = 0
for i in range(len(ns)):
if ns[i] in key:
inkey += ts[i]
ttot += ts[i]
ratio = 1.0 * inkey/ttot
tpair = {}
for i in range(len(ns)):
if ns[i] not in tpair:
tpair[ns[i]] = ts[i]
else:
tpair[ns[i]] += ts[i]
ctot = 0
for i in tpair.values():
ctot += i
cavg = 1.0 * ctot / len(tpair)
varn = 0
for i in tpair.values():
varn += (i-cavg)**2
if varn == 0:
return 2 * ratio / (1.0 / len(phr))
return ratio / varn
