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notes-archive/statics/physics/modern-phys-lab/counting/run.py
2025-09-30 13:19:38 -05:00

89 lines
2.9 KiB
Python

import numpy as np
import matplotlib.pyplot as plt
from matplotlib import colors
import scipy
def read_file(file: str) -> np.typing.ArrayLike:
with open(f'{file}.csv', 'r') as file:
lines = file.read().split('Channel,Energy,Counts')[1].strip().split('\n')
return np.array([int(line.split(',,')[1]) for line in lines], dtype=np.uint16)
all_data = {
'200': read_file('200'),
'100': read_file('100-1') + read_file('100-2'),
'40': sum([read_file(f'40-{i}') for i in range(1, 6)])
}
fig, axs = plt.subplots(len(all_data), 1, sharex='col')
i = 0
for dwell_time in all_data:
print(f'\n==[{dwell_time}ms]==\n')
data = all_data[dwell_time]
N = len(data)
print(f'Loaded {sum(data)} events across {N} samples')
mean = np.mean(data)
print(f'Found sample mean {mean:0.2f}')
stdev = np.std(data, ddof=1)
print(f'Found sample standard deviation {stdev:0.2f}')
sigma = np.sqrt(mean)
print(f'Found sigma {sigma:0.2f}')
P = 0.6745 * sigma
print(f'Found P {P:0.2f}')
times_dev_more_than_s = (np.abs(data - mean) > sigma).sum()
print(f'Found {times_dev_more_than_s} / {N} ({times_dev_more_than_s / N * 100:0.2f}%) samples deviating from the mean more than sigma {sigma:0.2f}')
times_dev_more_than_P = (np.abs(data - mean) > P).sum()
print(f'Found {times_dev_more_than_P} / {N} ({times_dev_more_than_P / N * 100:0.2f}%) samples deviating from the mean more than P {P:0.2f}')
ax = axs[i]
ax.set_xlabel('Run Count')
ax.set_ylabel('Events Measured')
ax.set_title('Raw Data')
ax.scatter(np.arange(1, len(data)+1), data, s=4)
ax.legend(['\n'.join([
f'Mean: {mean:0.2f}',
f'Sample Sd. Dev: {stdev:0.2f}',
f'P: {P:0.2f}',
f'Events > sigma: {times_dev_more_than_s} ({times_dev_more_than_s / N * 100:0.2f}%)',
f'Events > P: {times_dev_more_than_P} ({times_dev_more_than_P / N * 100:0.2f}%)'
])])
# ax = axs[i][1]
# ax.set_visible(False)
# ax.set_title(f'Cumulative Average ({dwell_time}ms Dwell time)')
# ax.set_xlabel('After N Runs')
# ax.set_ylabel('Cumulative Average')
# sample_num = np.arange(1, N + 1)
# cumulative_average = np.cumsum(data) / sample_num
# ax.plot(sample_num, cumulative_average, label=f'Final Value: {cumulative_average[-1]:0.2f}')
# ax.legend()
# ax = axs[i]
# N, bins, patches = ax.hist(data, density=True, bins=32, label='Measured Data')
# fracs = N / N.max()
# norm = colors.Normalize(fracs.min(), fracs.max())
# for thisfrac, thispatch in zip(fracs, patches):
# color = plt.cm.viridis(norm(thisfrac))
# thispatch.set_facecolor(color)
# ax.set_xlabel('Event Count')
# ax.set_ylabel('Frequency')
# linspace = np.arange(bins.min(), bins.max())
# gaussian = scipy.stats.norm.pdf(linspace, mean, stdev)
# ax.plot(linspace, gaussian, label='Fitted Gaussian')
# ax.legend()
i += 1
plt.show()