source: framspy/evolalg/utils/ @ 1139

Last change on this file since 1139 was 1139, checked in by Maciej Komosinski, 3 years ago

Added --debug mode that prints names of steps; final multiple evaluation now evaluates genotypes in hall of fame instead of the last population

File size: 1.7 KB
1from evolalg.base.step import Step
2import os
3from framsfiles import writer as framswriter
6class PopulationSave(Step):
7    def __init__(self, path, fields, provider=None, *args, **kwargs):
8        super(PopulationSave, self).__init__(*args, **kwargs)
9        self.path = path
10        self.provider = provider
11        self.fields = fields
13    @staticmethod
14    def ensure_dir(path):
15        directory = os.path.dirname(path)
16        if directory == "":
17            return
18        if not os.path.exists(directory):
19            os.makedirs(directory)
21    def call(self, population):
22        super(PopulationSave, self).call(population)
23        PopulationSave.ensure_dir(self.path)
24        provider = self.provider
25        if provider is None:
26            provider = population
28        #TODO instead of "fitness", write all fields used as fitness source with their original names (e.g. "velocity", "vertpos" etc.). In evaluation, set all attributes we get from Framsticks so that here we get all original names and values. Or, even better, introduce a dict field in Individual and assign to it everything that we get from Framsticks on evaluation (and add a filtering ability, i.e. when None - save all, when a list of field names - save only the enumerated fields)
29        with open(self.path, "w") as outfile:
30            for ind in provider:
31                keyval = {}
32                for k in self.fields: # construct a dictionary with criteria names and their values
33                    keyval[k] = getattr(ind, self.fields[k])
34                outfile.write(framswriter.from_collection({"_classname": "org", **keyval}))
35                outfile.write("\n")
37        print("Saved '%s' (%d)" % (self.path, len(provider)))
38        return population
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