def test_histogram_str():
hist = Histogram(nbins=[5, 10],
ranges=[[-2.5, 2.5], [-1, 1]],
name="testhisto")
expected = ("Histogram(name='testhisto', axes=['axis0', 'axis1'], "
"nbins=[ 5 10], ranges=[[-2.5 2.5]\n [-1. 1. ]])")
assert str(hist) == expected
def __init__(self, filename, col_altitude=0, col_thickness=2):
"""
small class that calculates the height of the shower maximum
given a parametrisation of the atmosphere
and certain parameters of the shower itself
Parameters:
-----------
filename : string
path to text file that contains a table of the
atmosphere parameters
col_altitude : int
column in the text file that contains the altitude/height
col_thickness : int
column in the text file that contains the thickness
"""
altitude = []
thickness = []
atm_file = open(filename, "r")
for line in atm_file:
if line.startswith("#"):
continue
altitude.append(float(line.split()[col_altitude]))
thickness.append(float(line.split()[col_thickness]))
self.atmosphere = Histogram(axisNames=["altitude"])
self.atmosphere.hist = thickness * u.g * u.cm ** -2
self.atmosphere.bin_lower_edges = [np.array(altitude) * u.km]
def test_outliers():
"""
Check that out-of-range values work as expected
"""
H = Histogram(nbins=[5, 10], ranges=[[-2.5, 2.5], [-1, 1]])
H.fill(np.array([
[1, 1],
]))
val1 = H.get_value((100, 100), outlier_value=-10000)
val2 = H.get_value((-100, 0), outlier_value=None)
assert val1 == -10000
assert val2 == 0
def test_histogram_resample_inplace():
hist = Histogram(nbins=[5, 11], ranges=[[-2.5, 2.5], [-1, 1]])
hist.fill(np.array([[0, 0], [0, 0.5]]))
for testpoint in [(0, 0), (0, 1), (1, 0), (3, 3)]:
val0 = hist.get_value(testpoint)
hist.resample_inplace((10, 22))
hist.resample_inplace((5, 11))
val2 = hist.get_value(testpoint)
# at least check the resampling is undoable
assert np.isclose(val0[0], val2[0])
def test_histogram_fits(histogram_file):
"""
Write to fits,read back, and check
"""
hist = Histogram(nbins=[5, 11], ranges=[[-2.5, 2.5], [-1, 1]])
hist.fill(np.array([[0, 0], [0, 0.5]]))
hist.to_fits().writeto(histogram_file, overwrite=True)
newhist = Histogram.from_fits(histogram_file)
# check that the values are the same
compare_histograms(hist, newhist)
def test_histogram_range_fill_and_read():
"""
Check that the correct bin is read and written for multiple
binnings and fill positions
"""
num = 100
for nxbins in np.arange(1, 50, 1):
for xx in np.arange(-2.0, 2.0, 0.1):
pp = (xx + 0.01829384, 0.1)
coords = np.ones((num, 2)) * np.array(pp)
hist = Histogram(nbins=[nxbins, 10], ranges=[[-2.5, 2.5], [-1, 1]])
hist.fill(coords)
val = hist.get_value(pp)[0]
assert val == num
del hist
def test_histogram_fill_and_read():
hist = Histogram(nbins=[5, 10], ranges=[[-2.5, 2.5], [-1, 1]])
pa = (0.1, 0.1)
pb = (-0.55, 0.55)
a = np.ones((100, 2)) * pa # point at 0.1,0.1
b = np.ones((10, 2)) * pb # 10 points at -0.5,0.5
hist.fill(a)
hist.fill(b)
va = hist.get_value(pa)[0]
vb = hist.get_value(pb)[0]
assert va == 100
assert vb == 10
def plot_muon_efficiency(outputpath):
"""
Plot the muon efficiencies
"""
fig, ax = plt.subplots(1, 1, figsize=(10, 10))
figip, axip = plt.subplots(1, 1, figsize=(10, 10))
figrw, axrw = plt.subplots(1, 1, figsize=(10, 10))
nbins = 16
t = Table.read(str(outputpath) + '_muontable.fits')
print('Reading muon efficiency from table', outputpath, t['MuonEff'])
if len(t['MuonEff']) < 1:
print("No muon events to plot")
return
else:
print("Found", len(t['MuonEff']), "muon events")
(mu, sigma) = norm.fit(t['MuonEff'])
print('Gaussian fit with mu=', mu, 'sigma=', sigma)
conteff = ax.hist(t['MuonEff'], nbins)
ax.set_xlim(0.2 * min(t['MuonEff']), 1.2 * max(t['MuonEff']))
xtest = np.linspace(min(t['MuonEff']), max(t['MuonEff']), nbins)
yg = mlab.normpdf(xtest, mu, sigma)
print('mu', mu, 'sigma', sigma, 'yg', yg)
ax.plot(xtest, yg, 'r', linewidth=2)
ax.set_ylim(0., 1.2 * max(conteff[0]))
ax.set_xlabel('Muon Efficiency')
plt.draw()
yimp = np.linspace(min(t['ImpactP']), max(t['ImpactP']), nbins)
contimp = axip.hist(t['ImpactP'], nbins)
axip.set_xlim(0.2 * min(t['ImpactP']), 1.2 * max(t['ImpactP']))
axip.set_ylim(0., 1.2 * max(contimp[0]))
axip.set_xlabel('Impact Parameter (m)')
plt.draw()
heffimp = Histogram(nbins=[16, 16],
ranges=[
(min(t['MuonEff']), max(t['MuonEff'])),
(min(t['ImpactP']), max(t['ImpactP']))
]) # ,axisNames=["MuonEfficiency","ImpactParameter"])
heffimp.fill([t['MuonEff'], t['ImpactP']])
heffimp.draw_2d()
yrw = np.linspace(min(t['RingWidth']), max(t['RingWidth']), nbins)
contrw = axrw.hist(t['RingWidth'], nbins)
axrw.set_xlim(0.2 * min(t['RingWidth']), 1.2 * max(t['RingWidth']))
axrw.set_ylim(0., 1.2 * max(contrw[0]))
axrw.set_xlabel('Ring Width ($^\circ$)')
plt.draw()
if outputpath is not None:
print("saving figure at", outputpath)
fig.savefig(str(outputpath) + '_MuonEff.png')
figip.savefig(str(outputpath) + '_ImpactParameter.png')
figrw.savefig(str(outputpath) + '_RingWidth.png')
else:
print("Not saving figure, no outputpath")
plt.show()
