nonlinearbaseline2025/noisesplit.py

151 lines
4.9 KiB
Python

import numpy as np
import matplotlib.pyplot as plt
from pathlib import Path
from plotstyle import plot_style
base_path = Path('data')
data_path = base_path / 'cells'
sims_path = base_path / 'simulations'
def sort_files(cell_name, all_files, n):
files = [fn for fn in all_files if '-'.join(fn.stem.split('-')[2:-n]) == cell_name]
if len(files) == 0:
return None, 0
nums = [int(fn.stem.split('-')[-1]) for fn in files]
idxs = np.argsort(nums)
files = [files[i] for i in idxs]
nums = [nums[i] for i in idxs]
return files, nums
def plot_chi2(ax, s, freqs, chi2, nsegs):
ax.set_aspect('equal')
i0 = np.argmin(freqs < 0)
i1 = np.argmax(freqs > 300)
if i1 == 0:
i1 = len(freqs)
freqs = freqs[i0:i1]
chi2 = chi2[i0:i1, i0:i1]
vmax = np.quantile(chi2, 0.996)
ten = 10**np.floor(np.log10(vmax))
for fac, delta in zip([1, 2, 3, 4, 6, 8, 10],
[0.5, 1, 1, 2, 3, 4, 5]):
if fac*ten >= vmax:
vmax = fac*ten
ten *= delta
break
pc = ax.pcolormesh(freqs, freqs, chi2, vmin=0, vmax=vmax,
rasterized=True)
ax.set_xlim(0, 300)
ax.set_ylim(0, 300)
ax.set_xticks_delta(100)
ax.set_yticks_delta(100)
ax.set_xlabel('$f_1$', 'Hz')
ax.set_ylabel('$f_2$', 'Hz')
ax.text(1, 1.1, f'$N=10^{{{np.log10(nsegs):.0f}}}$',
ha='right', transform=ax.transAxes)
cax = ax.inset_axes([1.04, 0, 0.05, 1])
cax.set_spines_outward('lrbt', 0)
cb = fig.colorbar(pc, cax=cax)
cb.outline.set_color('none')
cb.outline.set_linewidth(0)
cax.set_ylabel(r'$|\chi_2|$ [Hz]')
cax.set_yticks_delta(ten)
def plot_chi2_contrast(ax1, ax2, s, cell_name, contrast, nsmall, nlarge):
data_files = sims_path.glob(f'chi2-noisen-{cell_name}-{1000*contrast:03.0f}-*.npz')
files, nums = sort_files(cell_name, data_files, 2)
for ax, n in zip([ax1, ax2], [nsmall, nlarge]):
i = nums.index(n)
data = np.load(files[i])
n = data['n']
alpha = data['alpha']
freqs = data['freqs']
pss = data['pss']
chi2 = np.abs(data['prss'])*0.5/np.sqrt(pss.reshape(1, -1)*pss.reshape(-1, 1))
plot_chi2(ax, s, freqs, chi2, n)
def plot_chi2_split(ax1, ax2, s, cell_name, nsmall, nlarge):
data_files = sims_path.glob(f'chi2-split-{cell_name}-*.npz')
files, nums = sort_files(cell_name, data_files, 1)
for ax, n in zip([ax1, ax2], [nsmall, nlarge]):
i = nums.index(n)
data = np.load(files[i])
n = data['n']
alpha = data['alpha']
noise_frac = data['noise_frac']
freqs = data['freqs']
pss = data['pss']
chi2 = np.abs(data['prss'])*0.5/np.sqrt(pss.reshape(1, -1)*pss.reshape(-1, 1))
plot_chi2(ax, s, freqs, chi2, n)
return alpha, noise_frac
def plot_chi2_data(ax, s, cell_name, run):
data_file = data_path / f'{cell_name}-spectral-s{run:02d}.npz'
data = np.load(data_file)
n = data['n']
alpha = data['alpha']
freqs = data['freqs']
pss = data['pss']
chi2 = np.abs(data['prss'])*0.5/np.sqrt(pss.reshape(1, -1)*pss.reshape(-1, 1))
print(f'Measured cell {data_file.name} at {100*alpha:.1f}% contrast')
plot_chi2(ax, s, freqs, chi2, n)
return alpha
def plot_noise_split(ax, contrast, noise_contrast, noise_frac):
axr, axs, axn = ax.subplots(3, 1, hspace=0.1)
tmax = 50
axr.show_spines('l')
axr.set_xlim(0, tmax)
axr.set_ylim(-8, 8)
axr.set_yticks_delta(6)
axr.set_ylabel('\\%')
axs.show_spines('l')
axs.set_xlim(0, tmax)
axs.set_ylim(-8, 8)
axs.set_yticks_delta(6)
axs.set_ylabel('\\%')
axn.set_ylim(-6, 6)
axn.set_xlim(0, tmax)
axn.set_yticks_delta(6)
axn.set_yticks_blank()
axn.set_xticks_delta(25)
axn.set_xlabel('Time', 'ms')
if __name__ == '__main__':
cell_name = '2012-07-03-ak-invivo-1'
nsmall = 100
nlarge = 1000000
contrast = 0.03
s = plot_style()
fig, axs = plt.subplots(2, 4, cmsize=(s.plot_width, 0.4*s.plot_width),
width_ratios=[1, 0, 1, 1, 1])
fig.subplots_adjust(leftm=7, rightm=8, topm=2, bottomm=3.5,
wspace=0.4, hspace=0.6)
axs[1, 0].set_visible(False)
data_contrast = plot_chi2_data(axs[0, 0], s, cell_name[:13], 0)
plot_noise_split(axs[0, 1], data_contrast, 0, 1)
plot_chi2_contrast(axs[0, 2], axs[0, 3], s, cell_name, contrast, nsmall, nlarge)
noise_contrast, noise_frac = plot_chi2_split(axs[1, 2], axs[1, 3], s,
cell_name, nsmall, nlarge)
plot_noise_split(axs[1, 1], contrast, noise_contrast, noise_frac)
fig.common_xticks(axs[:, 2])
fig.common_xticks(axs[:, 3])
fig.common_yticks(axs[0, 2:])
fig.common_yticks(axs[1, 2:])
#fig.tag(axs, xoffs=-4.5, yoffs=1.8)
fig.savefig()
print()