from pprint import pformat as pf
from sconce.schedules.base import Schedule
import numpy as np
[docs]class Linear(Schedule):
"""
A Schedule where the value begins with value <initial_value>, then changes linearly to <final_value>.
Arguments:
initial_value (float): the initial value of the hyperparameter.
final_value (float): the final value of the hyperparameter.
"""
def __init__(self, initial_value, final_value):
self.initial_value = initial_value
self.final_value = final_value
def __repr__(self):
return f'{self.__class__.__name__}(initial_value={pf(self.initial_value)}, final_value={pf(self.final_value)})'
[docs] def set_num_steps(self, num_steps):
self.num_steps = num_steps
self.values = np.linspace(self.initial_value, self.final_value, self.num_steps)
def _get_value(self, step, current_state):
return self.values[step - 1]