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Silviu Marian Udrescu 2020-05-20 12:40:24 -04:00 • committed by GitHub
parent 23b1c94aad
commit 31e7f76672
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1 changed files with 53 additions and 51 deletions
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104
Code/S_run_bf_polyfit.py
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@ -180,61 +180,63 @@ def run_bf_polyfit(pathdir,pathdir_transformed,filename,BF_try_time,BF_ops_file_
#############################################################################################################################
# run polyfit on the data
print("Checking polyfit \n")
polyfit_result = polyfit(polyfit_deg, pathdir_transformed+filename)
eqn = str(polyfit_result[0])
# Calculate the complexity of the polyfit expression the same way as for gradient descent case
if output_type=="":
eqn = eqn
elif output_type=="acos":
eqn = "cos(" + eqn + ")"
elif output_type=="asin":
eqn = "sin(" + eqn + ")"
elif output_type=="atan":
eqn = "tan(" + eqn + ")"
elif output_type=="cos":
eqn = "acos(" + eqn + ")"
elif output_type=="exp":
eqn = "log(" + eqn + ")"
elif output_type=="inverse":
eqn = "1/(" + eqn + ")"
elif output_type=="log":
eqn = "exp(" + eqn + ")"
elif output_type=="sin":
eqn = "asin(" + eqn + ")"
elif output_type=="sqrt":
eqn = "(" + eqn + ")**2"
elif output_type=="squared":
eqn = "sqrt(" + eqn + ")"
elif output_type=="tan":
eqn = "atan(" + eqn + ")"
polyfit_err = get_symbolic_expr_error(pathdir,filename,eqn)
expr = parse_expr(eqn)
is_atomic_number = lambda expr: expr.is_Atom and expr.is_number
numbers_expr = [subexpression for subexpression in preorder_traversal(expr) if is_atomic_number(subexpression)]
complexity = 0
for j in numbers_expr:
complexity = complexity + get_number_DL_snapped(float(j))
try:
# Add the complexity due to symbols
n_variables = len(polyfit_result[0].free_symbols)
n_operations = len(count_ops(polyfit_result[0],visual=True).free_symbols)
if n_operations!=0 or n_variables!=0:
complexity = complexity + (n_variables+n_operations)*np.log2((n_variables+n_operations))
polyfit_result = polyfit(polyfit_deg, pathdir_transformed+filename)
eqn = str(polyfit_result[0])
# Calculate the complexity of the polyfit expression the same way as for gradient descent case
if output_type=="":
eqn = eqn
elif output_type=="acos":
eqn = "cos(" + eqn + ")"
elif output_type=="asin":
eqn = "sin(" + eqn + ")"
elif output_type=="atan":
eqn = "tan(" + eqn + ")"
elif output_type=="cos":
eqn = "acos(" + eqn + ")"
elif output_type=="exp":
eqn = "log(" + eqn + ")"
elif output_type=="inverse":
eqn = "1/(" + eqn + ")"
elif output_type=="log":
eqn = "exp(" + eqn + ")"
elif output_type=="sin":
eqn = "asin(" + eqn + ")"
elif output_type=="sqrt":
eqn = "(" + eqn + ")**2"
elif output_type=="squared":
eqn = "sqrt(" + eqn + ")"
elif output_type=="tan":
eqn = "atan(" + eqn + ")"
polyfit_err = get_symbolic_expr_error(pathdir,filename,eqn)
expr = parse_expr(eqn)
is_atomic_number = lambda expr: expr.is_Atom and expr.is_number
numbers_expr = [subexpression for subexpression in preorder_traversal(expr) if is_atomic_number(subexpression)]
complexity = 0
for j in numbers_expr:
complexity = complexity + get_number_DL_snapped(float(j))
try:
# Add the complexity due to symbols
n_variables = len(polyfit_result[0].free_symbols)
n_operations = len(count_ops(polyfit_result[0],visual=True).free_symbols)
if n_operations!=0 or n_variables!=0:
complexity = complexity + (n_variables+n_operations)*np.log2((n_variables+n_operations))
except:
pass
#run zero snap on polyfit output
PA_poly = ParetoSet()
PA_poly.add(Point(x=complexity, y=polyfit_err, data=str(eqn)))
PA_poly = add_snap_expr_on_pareto_polyfit(pathdir, filename, str(eqn), PA_poly)
for l in range(len(PA_poly.get_pareto_points())):
PA.add(Point(PA_poly.get_pareto_points()[l][0],PA_poly.get_pareto_points()[l][1],PA_poly.get_pareto_points()[l][2]))
except:
pass
#run zero snap on polyfit output
PA_poly = ParetoSet()
PA_poly.add(Point(x=complexity, y=polyfit_err, data=str(eqn)))
PA_poly = add_snap_expr_on_pareto_polyfit(pathdir, filename, str(eqn), PA_poly)
for l in range(len(PA_poly.get_pareto_points())):
PA.add(Point(PA_poly.get_pareto_points()[l][0],PA_poly.get_pareto_points()[l][1],PA_poly.get_pareto_points()[l][2]))
print("Complexity RMSE Expression")
for pareto_i in range(len(PA.get_pareto_points())):
print(PA.get_pareto_points()[pareto_i])