本文整理匯總了Python中fitter.Fitter.getCovMatrixElem方法的典型用法代碼示例。如果您正苦於以下問題：Python Fitter.getCovMatrixElem方法的具體用法？Python Fitter.getCovMatrixElem怎麽用？Python Fitter.getCovMatrixElem使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類fitter.Fitter的用法示例。
在下文中一共展示了Fitter.getCovMatrixElem方法的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。
示例1: evalEnergyCalibration
# 需要導入模塊: from fitter import Fitter [as 別名]
# 或者: from fitter.Fitter import getCovMatrixElem [as 別名]
def evalEnergyCalibration(peaks, percents):
maxenergy = 1.95 * 0.87 * 84
smaxenergy = maxenergy * sqrt((0.05/1.95) ** 2 + (0.01/0.87) ** 2 + (5/84) ** 2 )
channels = list(list(zip(*peaks))[0])
schannels = list(list(zip(*peaks))[1])
energies = list(map(lambda x:x/100*maxenergy, percents))
senergies = list(map(lambda x:x/100*smaxenergy, percents))
print(energies)
print(senergies)
with TxtFile('../src/tab_energycalibration.tex', 'w') as f:
f.write2DArrayToLatexTable(list(zip(*[percents, channels, schannels, energies, senergies])),
['\% energy', '$c$', '$s_c$', '$E$ / MeV', '$s_E$ / MeV'],
['%d', '%.3f', '%.3f', '%.1f', '%.1f'],
"Channels of fitted peaks and their theoretical energy for the energy calibration.", "tab:ecal")
data = DataErrors.fromLists(channels, energies, schannels, senergies)
c = TCanvas('c_energycalibration', '', 1280, 720)
g = data.makeGraph('g_energycalibration', 'channel c', 'energy E / MeV')
g.Draw('AP')
fit = Fitter('fit_energycalibration', 'pol1(0)')
fit.function.SetNpx(1000)
fit.setParam(0, 'a', 0)
fit.setParam(1, 'b', 1/3)
fit.fit(g, 0, max(channels) + 5)
fit.saveData('../fit/energyCalibration.txt')
l = TLegend(0.15, 0.6, 0.575, 0.85)
l.SetTextSize(0.03)
l.AddEntry(g, 'Peaks of flight through spectra / pedestal', 'p')
l.AddEntry(fit.function, 'fit with E(c) = a + b * c', 'l')
fit.addParamsToLegend(l, (('%.2f', '%.2f'), ('%.3f', '%.3f')), chisquareformat='%.2f', units=('MeV', 'MeV / channel'), lang='en')
l.Draw()
c.Update()
c.Print('../img/energyCalibration.pdf', 'pdf')
with TxtFile('../calc/energyCalibration.txt', 'w') as f:
f.writeline('\t', str(fit.params[0]['value']), str(fit.params[0]['error']))
f.writeline('\t', str(fit.params[1]['value']), str(fit.params[1]['error']))
f.writeline('\t', str(fit.getCovMatrixElem(0, 1)))示例2: main
# 需要導入模塊: from fitter import Fitter [as 別名]
# 或者: from fitter.Fitter import getCovMatrixElem [as 別名]
def main():
times = [2.4, 4.5, 6.25, 8.6]
times_error = [0.02] * len(times)
channels = [113, 223, 315.5, 441]
channels_error = [0.5] * len(times)
with TxtFile('../src/tab_timecalibration.tex', 'w') as f:
f.write2DArrayToLatexTable(list(zip(*[times, times_error, channels, channels_error])),
["$t$ / \\textmu s", "$s_t$ / \\textmu s", "$c$", "$s_c$"],
["%.2f", "%.2f", "%.1f", "%.1f"],
"Measured times and channels with errors for the time calibration.", "tab:tcal")
data = DataErrors.fromLists(channels, times, channels_error, times_error)
c = TCanvas('c', '', 1280, 720)
g = data.makeGraph('g', 'channel c', 'time t / #mus')
g.Draw('APX')
fit = Fitter('fit', 'pol1(0)')
fit.setParam(0, 'a', 0)
fit.setParam(1, 'b', 50)
fit.fit(g, 100, 450)
fit.saveData('../fit/timeCalibration.txt')
l = TLegend(0.15, 0.6, 0.5, 0.85)
l.SetTextSize(0.03)
l.AddEntry(g, 'measurement', 'p')
l.AddEntry(fit.function, 'fit with t(c) = a + b * c', 'l')
fit.addParamsToLegend(l, (('%.2f', '%.2f'), ('%.5f', '%.5f')), chisquareformat='%.2f', units=('#mus', '#mus/channel'), lang='en')
l.Draw()
g.Draw('P')
c.Update()
c.Print('../img/timeCalibration.pdf', 'pdf')
with TxtFile('../calc/timeCalibration.txt', 'w') as f:
f.writeline('\t', str(fit.params[0]['value']), str(fit.params[0]['error']))
f.writeline('\t', str(fit.params[1]['value']), str(fit.params[1]['error']))
f.writeline('\t', str(fit.getCovMatrixElem(0, 1)))