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"""Functions to help export PySR equations to LaTeX."""
import sympy
from sympy.printing.latex import LatexPrinter
class PreciseLatexPrinter(LatexPrinter):
"""Modified SymPy printer with custom float precision."""
def __init__(self, settings=None, prec=3):
super().__init__(settings)
self.prec = prec
def _print_Float(self, expr):
# Reduce precision of float:
reduced_float = sympy.Float(expr, self.prec)
return super()._print_Float(reduced_float)
def to_latex(expr, prec=3, full_prec=True, **settings):
"""Convert sympy expression to LaTeX with custom precision."""
settings["full_prec"] = full_prec
printer = PreciseLatexPrinter(settings=settings, prec=prec)
return printer.doprint(expr)
def generate_table_environment(columns=["equation", "complexity", "loss"]):
margins = "".join([("l" if col == "equation" else "c") for col in columns])
column_map = {
"complexity": "Complexity",
"loss": "Loss",
"equation": "Equation",
"score": "Score",
}
columns = [column_map[col] for col in columns]
top_pieces = [
r"\begin{table}[h]",
r"\begin{center}",
r"\begin{tabular}{@{}" + margins + r"@{}}",
r"\toprule",
" & ".join(columns) + r" \\",
r"\midrule",
]
bottom_pieces = [
r"\bottomrule",
r"\end{tabular}",
r"\end{center}",
r"\end{table}",
]
top_latex_table = "\n".join(top_pieces)
bottom_latex_table = "\n".join(bottom_pieces)
return top_latex_table, bottom_latex_table
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