def test_save_source_pha_fits(clean_astro_ui, tmp_path):
"""Can we write out data for save_source? DataPHA and FITS
"""
from sherpa.astro.io import read_table_blocks
ui.load_arrays(1, [1, 2], [5, 10], ui.DataPHA)
# we need a response
egrid = np.asarray([0.1, 0.2, 0.4])
elo = egrid[:-1]
ehi = egrid[1:]
rmf = create_delta_rmf(elo, ehi, e_min=elo, e_max=ehi)
ui.set_rmf(rmf)
yarf = np.asarray([10, 20])
arf = create_arf(elo, ehi, yarf)
ui.set_arf(arf)
ui.set_source(ui.const1d.cmdl)
cmdl.c0 = 2
out = tmp_path / 'model.dat'
outfile = str(out)
ui.save_source(outfile)
ans = read_table_blocks(outfile)
blocks = ans[1]
assert len(blocks) == 2
check_table(blocks[2], {
'XLO': [0.1, 0.2],
'XHI': [0.2, 0.4],
'SOURCE': [2, 2]
})
def test_save_resid_datapha_fits(tmp_path):
"""Residual, DataPHA, FITS"""
from sherpa.astro.io import read_table_blocks
ui.load_arrays(1, [1, 2], [5, 10], ui.DataPHA)
# we need a response
egrid = np.asarray([0.1, 0.2, 0.4])
elo = egrid[:-1]
ehi = egrid[1:]
rmf = create_delta_rmf(elo, ehi, e_min=elo, e_max=ehi)
ui.set_rmf(rmf)
yarf = np.asarray([10, 20])
arf = create_arf(elo, ehi, yarf)
ui.set_arf(arf)
ui.set_source(ui.const1d.cmdl)
cmdl.c0 = 2
out = tmp_path / 'resid.out'
outfile = str(out)
ui.save_resid(outfile)
ans = read_table_blocks(outfile)
blocks = ans[1]
assert len(blocks) == 2
check_table(blocks[2], {'X': [0.15, 0.3], 'RESID': [30, 10]})
def test_save_data_data1d_fits(tmp_path):
"""Does save_data work for Data1D? FITS"""
from sherpa.astro.io import read_table_blocks
ui.load_arrays(1, [1, 2, 3], [5, 4, 3], ui.Data1D)
out = tmp_path / "data.dat"
outfile = str(out)
ui.save_data(outfile, ascii=False)
ans = read_table_blocks(outfile)
blocks = ans[1]
assert len(blocks) == 2
check_table(blocks[2], {'X': [1, 2, 3], 'Y': [5, 4, 3]})
def test_save_resid_data1d_fits(tmp_path):
"""Residual, Data1D, FITS"""
from sherpa.astro.io import read_table_blocks
ui.load_arrays(1, [100, 200], [20, 230], ui.Data1D)
ui.set_source(ui.const1d.cmdl)
cmdl.c0 = 220
out = tmp_path / 'resid.out'
outfile = str(out)
ui.save_resid(outfile)
ans = read_table_blocks(outfile)
blocks = ans[1]
assert len(blocks) == 2
check_table(blocks[2], {'X': [100, 200], 'RESID': [-200, 10]})
def test_save_model_fits(savefunc, mtype, clean_astro_ui, tmp_path):
"""Can we write out data for save_source/model? Data1D and FITS
As this is not a PHA dataset, the two shouldbe the same bar the
header line.
"""
from sherpa.astro.io import read_table_blocks
ui.load_arrays(1, [1, 2], [5, 10])
ui.set_source(ui.polynom1d.cmdl)
cmdl.c0 = -5
cmdl.c1 = 10
out = tmp_path / 'model.dat'
outfile = str(out)
savefunc(outfile)
ans = read_table_blocks(outfile)
blocks = ans[1]
assert len(blocks) == 2
check_table(blocks[2], {'X': [1, 2], mtype: [5, 15]})
def read(self, filename):
filename, cols, hdr = read_table_blocks(filename)
emethod = None
for key in hdr.keys():
if 'EMETHOD' in hdr[key]:
emethod = hdr[key]['EMETHOD'].strip().upper()
if emethod is not None and emethod.startswith('PCA1DADD'):
bias = cols[2]['BIAS']
component = cols[3]['COMPONENT']
fvariance = cols[3]['FVARIANCE']
eigenval = cols[3]['EIGENVAL']
eigenvec = cols[3]['EIGENVEC']
return PCA1DAdd(bias, component, fvariance, eigenval, eigenvec)
elif emethod is not None and emethod.startswith('SIM1DADD'):
bias = cols[2]['BIAS']
component = cols[3]['COMPONENT']
simcomp = cols[3]['SIMCOMP']
return SIM1DAdd(bias, component, simcomp)
raise TypeError("Unknown simulation ARF '%s'" % filename)
def read(self, filename):
filename, cols, hdr = read_table_blocks(filename)
emethod = None
for key in hdr.keys():
if hdr[key].has_key('EMETHOD'):
emethod = hdr[key]['EMETHOD'].strip().upper()
if emethod is not None and emethod.startswith('PCA1DADD'):
bias = cols[2]['BIAS']
component = cols[3]['COMPONENT']
fvariance = cols[3]['FVARIANCE']
eigenval = cols[3]['EIGENVAL']
eigenvec = cols[3]['EIGENVEC']
return PCA1DAdd(bias, component, fvariance, eigenval, eigenvec)
elif emethod is not None and emethod.startswith('SIM1DADD'):
bias = cols[2]['BIAS']
component = cols[3]['COMPONENT']
simcomp = cols[3]['SIMCOMP']
return SIM1DAdd(bias, component, simcomp)
raise TypeError("Unknown simulation ARF '%s'" % filename)