pybop._utils

Classes

SymbolReplacer

Helper class to replace all instances of one or more symbols in an expression tree

Functions

is_numeric(x)

Check if a variable is numeric.

Module Contents

class pybop._utils.SymbolReplacer(symbol_replacement_map: dict[pybamm.Symbol, pybamm.Symbol], processed_symbols: dict[pybamm.Symbol, pybamm.Symbol] | None = None, process_initial_conditions: bool = True)

Helper class to replace all instances of one or more symbols in an expression tree with another symbol, as defined by the dictionary symbol_replacement_map Originally developed by pybamm: pybamm-team/pybamm

Parameters:

• symbol_replacement_map (dict {pybamm.Symbol -> pybamm.Symbol}) – Map of which symbols should be replaced by which.

• processed_symbols (dict {pybamm.Symbol -> pybamm.Symbol}, optional) – cached replaced symbols

• process_initial_conditions (bool, optional) – Whether to process initial conditions, default is True

_process_events(events: list) → list

_process_symbol(symbol: pybamm.Symbol) → pybamm.Symbol

process_boundary_conditions(model)

Process boundary conditions for a PybaMM model class Boundary conditions are dictionaries {“left”: left bc, “right”: right bc} in general, but may be imposed on the tabs (or not on the tab) for a small number of variables, e.g. {“negative tab”: neg. tab bc, “positive tab”: pos. tab bc “no tab”: no tab bc}.

process_model(unprocessed_model, inplace=True)

Replace all instances of a symbol in a PyBaMM model class.

Parameters:

• unprocessed_model (pybamm.BaseModel) – Model class to assign parameter values to

• inplace (bool, optional) – If True, replace the parameters in the model in place. Otherwise, return a new model with parameter values set. Default is True.

process_symbol(symbol)

This function recurses down the tree, replacing any symbols in self._symbol_replacement_map.keys() with their corresponding value

Parameters:

symbol (pybamm.Symbol) – The symbol to replace

Returns:

Symbol with all replacements performed

Return type:

pybamm.Symbol

_process_initial_conditions

_processed_symbols

_symbol_replacement_map

pybop._utils.is_numeric(x)

Check if a variable is numeric.