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Recover Sherpa analysis status when fitting PCA backgrounds #35

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Recover Sherpa analysis status when fitting PCA backgrounds #35

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11 changes: 11 additions & 0 deletions bxa/sherpa/background/pca.py
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Original file line number Diff line number Diff line change
Expand Up @@ -65,6 +65,13 @@ def get_unit_response(i):
delete_data("temp_unitrsp")
return bunitrsp

def get_analysis_initial_status(id):
pha = get_data(id)
factor = pha.plot_fac
quantity = pha.units
type = "rate" if pha.rate else "counts"
return quantity, type, factor


class IdentityResponse(RSPModelNoPHA):
def __init__(self, n, model, arf, rmf):
Expand Down Expand Up @@ -346,6 +353,7 @@ def fit(self):
for p, v in zip(bkgmodel.pars, last_final):
p.val = v

analysis_initial_status = get_analysis_initial_status(id)
last_model = convbkgmodel
for i in range(10):
print()
Expand Down Expand Up @@ -405,6 +413,9 @@ def fit(self):
p.val = v
break

set_analysis(id, *analysis_initial_status)


def auto_background(id):
"""Automatically fits background *id* based on PCA-based templates,
and additional gaussian lines as needed by AIC."""
Expand Down