FlatFile

class ioh.iohcpp.logger.FlatFile(self: ioh.iohcpp.logger.FlatFile, triggers: List[ioh.iohcpp.logger.trigger.Trigger], properties: List[ioh.iohcpp.logger.property.AbstractProperty], filename: str = 'IOH.dat', output_directory: ioh.iohcpp.logger.Path = './', separator: str = '\t', comment: str = '#', no_value: str = 'None', end_of_line: str = '\n', repeat_header: bool = False, store_positions: bool = False, common_header_titles: List[str] = ['suite_name', 'problem_name', 'problem_id', 'problem_instance', 'optimization_type', 'dimension', 'run'])

Bases: AbstractLogger

A logger which stores all tracked properties to a file.

Parameters:

• triggers (list[Trigger]) – List of triggers, i.e. when to trigger logging

• properties (list[Property]) – The list of properties to keep track of

• filename (str = "IOH.dat") – The file to log to

• output_directory (str = "./") – The path to which to write the file

• separator (str = "t") – The column seperator

• comment (str = "#") – The comment character

• no_value (str = "None") – The NaN character

• end_of_line (str = "n") – The eol character

• repeat_header (bool = false) – Boolean value which indicates whether to repeat the header for every new run.

• store_positions (bool = false) – Boolean value which indicates whether to store the x-positions in the file

Attributes Summary

filename
output_directory
problem	Reference to the currently attached problem

Methods Summary

add_trigger(self, arg0)	Add a trigger to the logger
call(self, arg0)	Performs logging behaviour
reset(self)	Reset the state of the logger
watch(*args, **kwargs)	Overloaded function.

Attributes Documentation

filename

output_directory

problem

Reference to the currently attached problem

Methods Documentation

add_trigger(self: ioh.iohcpp.logger.Logger, arg0: ioh.iohcpp.logger.trigger.Trigger) → None

Add a trigger to the logger

call(self: ioh.iohcpp.logger.Logger, arg0: ioh.iohcpp.LogInfo) → None

Performs logging behaviour

reset(self: ioh.iohcpp.logger.Logger) → None

Reset the state of the logger

watch(*args, **kwargs)

Overloaded function.

1. watch(self: ioh.iohcpp.logger.FlatFile, arg0: ioh.iohcpp.logger.property.AbstractProperty) -> None

2. watch(self: ioh.iohcpp.logger.FlatFile, arg0: object, arg1: str) -> None

3. watch(self: ioh.iohcpp.logger.FlatFile, arg0: object, arg1: List[str]) -> None