def initBernoulli(model, k, F0, TR, N, y, fSigMax, smpx, Bsmpx): ############
if model == "bernoulli":
w = 5
wf = gauKer(w)
gk = _N.empty((TR, N + 1))
fgk = _N.empty((TR, N + 1))
for m in xrange(TR):
gk[m] = _N.convolve(y[m], wf, mode="same")
gk[m] = gk[m] - _N.mean(gk[m])
gk[m] /= 5 * _N.std(gk[m])
fgk[m] = bpFilt(15, 100, 1, 135, 500, gk[m]) # we want
fgk[m, :] /= 2 * _N.std(fgk[m, :])
smpx[m, 2:, 0] = fgk[m, :]
for n in xrange(2 + k - 1, N + 1 + 2): # CREATE square smpx
smpx[m, n, 1:] = smpx[m, n - k + 1:n, 0][::-1]
for n in xrange(2 + k - 2, -1, -1): # CREATE square smpx
smpx[m, n, 0:k - 1] = smpx[m, n + 1, 1:k]
smpx[m, n, k - 1] = _N.dot(F0, smpx[m, n:n + k,
k - 2]) # no noise
Bsmpx[m, 0, :] = smpx[m, :, 0]
def setParams(self):
oo = self
# #generate initial values of parameters
oo._d = _kfardat.KFARGauObsDat(oo.TR, oo.N, 1)
oo._d.copyData(oo.y)
# baseFN_inter baseFN_comps baseFN_comps
oo.smpx = _N.zeros((oo.TR, oo.N + 1)) # start at 0 + u
oo.ws = _N.empty((oo.TR, oo._d.N+1), dtype=_N.float)
if oo.q20 is None:
oo.q20 = 0.00077
oo.q2 = _N.ones(oo.TR)*oo.q20
oo.F0 = _N.array([0.9])
######## Limit the amplitude to something reasonable
xE, nul = createDataAR(oo.N, oo.F0, oo.q20, 0.1)
mlt = _N.std(xE) / 0.5 # we want amplitude around 0.5
oo.q2 /= mlt*mlt
xE, nul = createDataAR(oo.N, oo.F0, oo.q2[0], 0.1)
w = 5
wf = gauKer(w)
gk = _N.empty((oo.TR, oo.N+1))
fgk= _N.empty((oo.TR, oo.N+1))
for m in xrange(oo.TR):
gk[m] = _N.convolve(oo.y[m], wf, mode="same")
gk[m] = gk[m] - _N.mean(gk[m])
gk[m] /= 5*_N.std(gk[m])
fgk[m] = bpFilt(15, 100, 1, 135, 500, gk[m]) # we want
fgk[m, :] /= 2*_N.std(fgk[m, :])
if oo.noAR:
oo.smpx[m, 0] = 0
else:
oo.smpx[m] = fgk[m]
oo.s_lrn = _N.empty((oo.TR, oo.N+1))
oo.sprb = _N.empty((oo.TR, oo.N+1))
oo.lrn_scr1 = _N.empty(oo.N+1)
oo.lrn_iscr1 = _N.empty(oo.N+1)
oo.lrn_scr2 = _N.empty(oo.N+1)
oo.lrn_scr3 = _N.empty(oo.N+1)
oo.lrn_scld = _N.empty(oo.N+1)
if oo.bpsth:
oo.B = patsy.bs(_N.linspace(0, (oo.t1 - oo.t0)*oo.dt, (oo.t1-oo.t0)), df=oo.dfPSTH, knots=oo.kntsPSTH, include_intercept=True) # spline basis
if oo.dfPSTH is None:
oo.dfPSTH = oo.B.shape[1]
oo.B = oo.B.T # My convention for beta
if oo.aS is None:
oo.aS = _N.linalg.solve(_N.dot(oo.B, oo.B.T), _N.dot(oo.B, _N.ones(oo.t1 - oo.t0)*0.01)) # small amplitude psth at first
oo.u_a = _N.zeros(oo.dfPSTH)
else:
oo.B = patsy.bs(_N.linspace(0, (oo.t1 - oo.t0)*oo.dt, (oo.t1-oo.t0)), df=4, include_intercept=True) # spline basis
oo.B = oo.B.T # My convention for beta
oo.aS = _N.zeros(4)
#oo.u_a = _N.ones(oo.dfPSTH)*_N.mean(oo.us)
oo.u_a = _N.zeros(oo.dfPSTH)
def oscPer(setname,
fltPrms=[5, 13, 1, 20],
t0=None,
t1=None,
tr0=0,
tr1=None,
trials=None,
fn=None,
showHist=True,
osc=None):
"""
find period of oscillation
"""
if t0 is None:
t0 = 0
if t1 is None:
t1 = Na
if setname is not None:
_dat = _N.loadtxt(resFN("xprbsdN.dat", dir=setname))
# modulation histogram. phase @ spike
Na, cols = _dat.shape
p = _re.compile("^\d{6}") # starts like "exptDate-....."
m = p.match(setname)
bRealDat = True
COLS = 4
sub = 1
if m == None:
bRealDat = False
COLS = 3
sub = 0
TR = cols / COLS
if trials is None:
if tr1 is None:
tr1 = TR
trials = _N.arange(tr0, tr1)
N = t1 - t0
dat = _dat[t0:t1, :]
elif osc is not None:
TR, N = osc.shape
trials = _N.arange(TR)
bRealDat = False
COLS = 3
sub = 0
dat = _N.empty((N, COLS * TR))
dat[:, sub::COLS] = osc.T
Ts = []
for tr in trials:
x = dat[:, tr * COLS + sub]
if fltPrms is None:
fx = x
elif len(fltPrms) == 2:
fx = lpFilt(fltPrms[0], fltPrms[1], 500, x)
else: # 20, 40, 10, 55 #(fpL, fpH, fsL, fsH, nyqf, y):
fx = bpFilt(fltPrms[0], fltPrms[1], fltPrms[2], fltPrms[3], 500, x)
intvs = _N.where((fx[1:] < 0) & (fx[0:-1] >= 0))
Ts.extend(_N.diff(intvs[0]))
if showHist:
fig = _plt.figure()
_plt.hist(Ts, bins=range(min(Ts) - 1, max(Ts) + 1))
mn = _N.mean(Ts)
std = _N.std(Ts)
print "mean Hz %(f).3f cv: %(cv).3f" % {
"cv": (std / mn),
"f": (1000 / mn)
}
def _histPhase0_phaseInfrdAll(TR,
N,
x,
_mdn,
t0=None,
t1=None,
bRealDat=False,
trials=None,
fltPrms=None,
maxY=None,
yticks=None,
fn=None,
normed=False,
surrogates=1,
shftPhase=0,
color=None):
"""
what is the inferred phase when ground truth phase is 0
"""
pInfrdAt0 = []
if (fltPrms is not None) and (not bRealDat):
_fx = _N.empty((TR, N))
for tr in xrange(TR):
if len(fltPrms) == 2:
_fx[tr] = lpFilt(fltPrms[0], fltPrms[1], 500, x[tr])
elif len(fltPrms) == 4:
# 20, 40, 10, 55 #(fpL, fpH, fsL, fsH, nyqf, y):
_fx[tr] = bpFilt(fltPrms[0], fltPrms[1], fltPrms[2],
fltPrms[3], 500, x[tr])
else:
_fx = x
gk = gauKer(1)
gk /= _N.sum(gk)
if trials is None:
trials = _N.arange(TR)
TR = TR
else:
TR = len(trials)
trials = _N.array(trials)
#trials, TR = range(mARp.TR), mARp.TR if (trials is None) else trials, len(trials)
nPh0s = _N.zeros(TR)
t1 = t1 - t0 # mdn already size t1-t0
t0 = 0
mdn = _mdn
fx = _fx
if _mdn.shape[0] != t1 - t0:
mdn = _mdn[:, t0:t1]
if _fx.shape[0] != t1 - t0:
fx = _fx[:, t0:t1]
itr = 0
phs = [] # phase 0 of inferred is at what phase of GT or LFP?
cSpkPhs = []
sSpkPhs = []
for tr in trials:
itr += 1
cv = _N.convolve(mdn[tr, t0:t1] - _N.mean(mdn[tr, t0:t1]),
gk,
mode="same")
ht_mdn = _ssig.hilbert(cv)
ht_fx = _ssig.hilbert(fx[tr, t0:t1] - _N.mean(fx[tr, t0:t1]))
ph_mdn = (_N.arctan2(ht_mdn.imag, ht_mdn.real) + _N.pi) / (2 * _N.pi)
ph_mdn = _N.mod(ph_mdn + shftPhase, 1)
ph_fx = (_N.arctan2(ht_fx.imag, ht_fx.real) + _N.pi) / (2 * _N.pi)
ph_fx = _N.mod(ph_fx + shftPhase, 1)
# phase = 0 is somewhere in middle
inds = _N.where((ph_mdn[0:t1 - t0 - 1] < 1)
& (ph_mdn[0:t1 - t0 - 1] > 0.5)
& (ph_mdn[1:t1 - t0] < 0.25))[0]
cSpkPhs.append(_N.cos(2 * _N.pi * ph_fx[inds + t0]))
sSpkPhs.append(_N.sin(2 * _N.pi * ph_fx[inds + t0]))
phs.append(ph_fx[inds + t0])
#for i in xrange(t0-t0, t1-t0-1):
# if (ph_mdn[i] < 1) and (ph_mdn[i] > 0.5) and (ph_mdn[i+1] < -0.5):
# pInfrdAt0.append(ph_fx[i]/2.)
return figCircularDistribution(phs,
cSpkPhs,
sSpkPhs,
trials,
surrogates=surrogates,
normed=normed,
fn=fn,
maxY=maxY,
yticks=yticks,
color=color,
xlabel=xlabel)
def modhistAll(setname,
shftPhase=0,
fltPrms=[3.3, 11, 1, 15],
t0=None,
t1=None,
tr0=0,
tr1=None,
trials=None,
fn=None,
maxY=None,
yticks=None,
normed=False,
surrogates=1,
color=None,
nofig=False,
flatten=False,
filtCol=0,
xlabel=None,
smFnt=20,
bgFnt=22):
"""
shftPhase from 0 to 1.
yticks should look like [[0.5, 1, 1.5], ["0.5", "1", "1.5"]]
"""
_dat = _N.loadtxt(resFN("xprbsdN.dat", dir=setname))
# modulation histogram. phase @ spike
Na, cols = _dat.shape
t0 = 0 if (t0 is None) else t0
t1 = Na if (t1 is None) else t1
dat = _dat[t0:t1, :]
N = t1 - t0
p = _re.compile("^\d{6}") # starts like "exptDate-....."
m = p.match(setname)
bRealDat, COLS, sub, phC = True, 4, 2, 3
if m == None:
bRealDat, COLS, sub = False, 3, 1
print "realDat is %s" % str(bRealDat)
TR = cols / COLS
tr1 = TR if (tr1 is None) else tr1
trials = _N.arange(tr0, tr1) if (trials is None) else trials
if type(trials) == list:
trials = _N.array(trials)
phs = []
cSpkPhs = []
sSpkPhs = []
for tr in trials:
if fltPrms is not None:
x = dat[:, tr * COLS]
if len(fltPrms) == 2:
fx = lpFilt(fltPrms[0], fltPrms[1], 500, x)
elif len(fltPrms) == 4:
# 20, 40, 10, 55 #(fpL, fpH, fsL, fsH, nyqf, y):
fx = bpFilt(fltPrms[0], fltPrms[1], fltPrms[2], fltPrms[3],
500, x)
else:
fx = dat[:, tr * COLS + filtCol]
ht_x = _ssig.hilbert(fx)
ph_x = (_N.arctan2(ht_x.imag, ht_x.real) + _N.pi) / (2 * _N.pi)
ph_x = _N.mod(ph_x + shftPhase, 1)
ispks = _N.where(dat[:, tr * COLS + (COLS - sub)] == 1)[0]
cSpkPhs.append(_N.cos(2 * _N.pi * ph_x[ispks]))
sSpkPhs.append(_N.sin(2 * _N.pi * ph_x[ispks]))
phs.append(ph_x[ispks])
if nofig:
if not flatten:
return phs
else:
fl = []
for i in xrange(len(phs)):
fl.extend(phs[i])
return fl
return figCircularDistribution(phs,
cSpkPhs,
sSpkPhs,
trials,
surrogates=surrogates,
normed=normed,
fn=fn,
maxY=maxY,
yticks=yticks,
setname=setname,
color=color,
xlabel=xlabel,
smFnt=smFnt,
bgFnt=bgFnt)
def setParams(self, psth_run=False, psth_knts=10):
oo = self
# #generate initial values of parameters
#oo._d = _kfardat.KFARGauObsDat(oo.TR, oo.N, oo.k)
#oo._d.copyData(oo.y)
oo.Ns = _N.ones(oo.TR, dtype=_N.int) * oo.N
oo.ks = _N.ones(oo.TR, dtype=_N.int) * oo.k
oo.F = _N.zeros((oo.k, oo.k))
_N.fill_diagonal(oo.F[1:, 0:oo.k - 1], 1)
oo.F[0] = _N.random.randn(oo.k) / _N.arange(1, oo.k + 1)**2
oo.F[0, 0] = 0.8
oo.Fs = _N.zeros((oo.TR, oo.k, oo.k))
for tr in range(oo.TR):
oo.Fs[tr] = oo.F
oo.Ik = _N.identity(oo.k)
oo.IkN = _N.tile(oo.Ik, (oo.N + 1, 1, 1))
# need TR
# pr_x[:, 0] empty, not used
#oo.p_x = _N.empty((oo.TR, oo.N+1, oo.k, 1))
oo.p_x = _N.empty((oo.TR, oo.N + 1, oo.k))
oo.p_x[:, 0, 0] = 0
oo.p_V = _N.empty((oo.TR, oo.N + 1, oo.k, oo.k))
oo.p_Vi = _N.empty((oo.TR, oo.N + 1, oo.k, oo.k))
#oo.f_x = _N.empty((oo.TR, oo.N+1, oo.k, 1))
oo.f_x = _N.empty((oo.TR, oo.N + 1, oo.k))
oo.f_V = _N.empty((oo.TR, oo.N + 1, oo.k, oo.k))
#oo.s_x = _N.empty((oo.TR, oo.N+1, oo.k, 1))
oo.s_x = _N.empty((oo.TR, oo.N + 1, oo.k))
oo.s_V = _N.empty((oo.TR, oo.N + 1, oo.k, oo.k))
_N.fill_diagonal(oo.F[1:, 0:oo.k - 1], 1)
oo.G = _N.zeros((oo.k, 1))
oo.G[0, 0] = 1
oo.Q = _N.empty(oo.TR)
# baseFN_inter baseFN_comps baseFN_comps
print("freq_lims")
print(oo.freq_lims)
radians = buildLims(0, oo.freq_lims, nzLimL=1., Fs=(1 / oo.dt))
oo.AR2lims = 2 * _N.cos(radians)
oo.smpx = _N.zeros((oo.TR, (oo.N + 1) + 2, oo.k)) # start at 0 + u
oo.ws = _N.empty((oo.TR, oo.N + 1), dtype=_N.float)
############# ADDED THIS FOR DEBUG
#oo.F_alfa_rep = _N.array([-0.4 +0.j, 0.96999828+0.00182841j, 0.96999828-0.00182841j, 0.51000064+0.02405102j, 0.51000064-0.02405102j, 0.64524011+0.04059507j, 0.64524011-0.04059507j]).tolist()
if oo.F_alfa_rep is None:
oo.F_alfa_rep = initF(oo.R, oo.Cs + oo.Cn,
0).tolist() # init F_alfa_rep
print("F_alfa_rep*********************")
print(oo.F_alfa_rep)
#print(ampAngRep(oo.F_alfa_rep))
if oo.q20 is None:
oo.q20 = 0.00077
oo.q2 = _N.ones(oo.TR) * oo.q20
oo.F0 = (-1 * _Npp.polyfromroots(oo.F_alfa_rep)[::-1].real)[1:]
oo.Fs = _N.zeros((oo.TR, oo.k, oo.k))
oo.F[0] = oo.F0
_N.fill_diagonal(oo.F[1:, 0:oo.k - 1], 1)
for tr in range(oo.TR):
oo.Fs[tr] = oo.F
######## Limit the amplitude to something reasonable
xE, nul = createDataAR(oo.N, oo.F0, oo.q20, 0.1)
mlt = _N.std(xE) / 0.5 # we want amplitude around 0.5
oo.q2 /= mlt * mlt
xE, nul = createDataAR(oo.N, oo.F0, oo.q2[0], 0.1)
w = 5
wf = gauKer(w)
gk = _N.empty((oo.TR, oo.N + 1))
fgk = _N.empty((oo.TR, oo.N + 1))
for m in range(oo.TR):
gk[m] = _N.convolve(oo.y[m], wf, mode="same")
gk[m] = gk[m] - _N.mean(gk[m])
gk[m] /= 5 * _N.std(gk[m])
fgk[m] = bpFilt(15, 100, 1, 135, 500, gk[m]) # we want
fgk[m, :] /= 3 * _N.std(fgk[m, :])
if oo.noAR:
oo.smpx[m, 2:, 0] = 0
else:
oo.smpx[m, 2:, 0] = fgk[m, :]
for n in range(2 + oo.k - 1, oo.N + 1 + 2): # CREATE square smpx
oo.smpx[m, n, 1:] = oo.smpx[m, n - oo.k + 1:n, 0][::-1]
for n in range(2 + oo.k - 2, -1, -1): # CREATE square smpx
oo.smpx[m, n, 0:oo.k - 1] = oo.smpx[m, n + 1, 1:oo.k]
oo.smpx[m, n, oo.k - 1] = _N.dot(oo.F0,
oo.smpx[m, n:n + oo.k,
oo.k - 2]) # no noise
if oo.bpsth:
psthKnts, apsth, aWeights = _spknts.suggestPSTHKnots(
oo.dt,
oo.TR,
oo.N + 1,
oo.y.T,
psth_knts=psth_knts,
psth_run=psth_run)
_N.savetxt("apsth.txt", apsth, fmt="%.4f")
_N.savetxt("psthKnts.txt", psthKnts, fmt="%.4f")
apprx_ps = _N.array(_N.abs(aWeights))
oo.u_a = -_N.log(1 / apprx_ps - 1)
# For oo.u_a, use the values we get from aWeights
oo.B = patsy.bs(_N.linspace(0, (oo.t1 - oo.t0) * oo.dt,
(oo.t1 - oo.t0)),
knots=(psthKnts * oo.dt),
include_intercept=True) # spline basis
oo.B = oo.B.T # My convention for beta
oo.aS = _N.array(oo.u_a)
# fig = _plt.figure(figsize=(4, 7))
# fig.add_subplot(2, 1, 1)
# _plt.plot(apsth)
# fig.add_subplot(2, 1, 2)
# _plt.plot(_N.dot(oo.B.T, aWeights))
else:
oo.B = patsy.bs(_N.linspace(0, (oo.t1 - oo.t0) * oo.dt,
(oo.t1 - oo.t0)),
df=4,
include_intercept=True) # spline basis
oo.B = oo.B.T # My convention for beta
oo.aS = _N.zeros(4)
