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""" |
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Main AsgardpyConfig Operations Module |
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""" |
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import logging |
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from collections.abc import Mapping |
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from pathlib import Path |
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import numpy as np |
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from gammapy.modeling.models import Models, SkyModel |
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__all__ = [ |
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"all_model_templates", |
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"compound_model_dict_converstion", |
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"get_model_template", |
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"recursive_merge_dicts", |
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"deep_update", |
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] |
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CONFIG_PATH = Path(__file__).resolve().parent |
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log = logging.getLogger(__name__) |
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def all_model_templates(): |
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""" |
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Collect all Template Models provided in Asgardpy, and their small tag names. |
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""" |
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template_files = sorted(list(CONFIG_PATH.glob("model_templates/model_template*yaml"))) |
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all_tags = [] |
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for file in template_files: |
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all_tags.append(file.name.split("_")[-1].split(".")[0]) |
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all_tags = np.array(all_tags) |
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return all_tags, template_files |
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def get_model_template(spec_model_tag): |
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""" |
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Read a particular template model yaml filename to create an AsgardpyConfig |
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object. |
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""" |
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all_tags, template_files = all_model_templates() |
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new_model_file = None |
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for file, tag in zip(template_files, all_tags, strict=True): |
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if spec_model_tag == tag: |
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new_model_file = file |
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return new_model_file |
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def check_gammapy_model(gammapy_model): |
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""" |
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For a given object type, try to read it as a Gammapy Models object. |
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""" |
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if isinstance(gammapy_model, Models | SkyModel): |
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models_gpy = Models(gammapy_model) |
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else: |
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try: |
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models_gpy = Models.read(gammapy_model) |
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except KeyError: |
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raise TypeError("%s File cannot be read by Gammapy Models", gammapy_model) from KeyError |
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return models_gpy |
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def recursive_merge_dicts(base_config, extra_config): |
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""" |
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recursively merge two dictionaries. |
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Entries in extra_config override entries in base_config. The built-in |
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update function cannot be used for hierarchical dicts. |
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Also for the case when there is a list of dicts involved, one has to be |
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more careful. The extra_config may have longer list of dicts as compared |
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with the base_config, in which case, the extra items are simply added to |
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the merged final list. |
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Combined here are 2 options from SO. |
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See: |
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http://stackoverflow.com/questions/3232943/update-value-of-a-nested-dictionary-of-varying-depth/3233356#3233356 |
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and also |
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https://stackoverflow.com/questions/3232943/update-value-of-a-nested-dictionary-of-varying-depth/18394648#18394648 |
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Parameters |
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---------- |
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base_config : dict |
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dictionary to be merged |
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extra_config : dict |
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dictionary to be merged |
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Returns |
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------- |
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final_config : dict |
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merged dict |
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""" |
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final_config = base_config.copy() |
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for key, value in extra_config.items(): |
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if key in final_config and isinstance(final_config[key], list): |
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new_config = [] |
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for key_, value_ in zip(final_config[key], value, strict=False): |
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key_ = recursive_merge_dicts(key_ or {}, value_) |
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new_config.append(key_) |
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# For example moving from a smaller list of model parameters to a |
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# longer list. |
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if len(final_config[key]) < len(extra_config[key]): |
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for value_ in value[len(final_config[key]) :]: |
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new_config.append(value_) |
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final_config[key] = new_config |
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elif key in final_config and isinstance(final_config[key], dict): |
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final_config[key] = recursive_merge_dicts(final_config.get(key) or {}, value) |
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else: |
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final_config[key] = value |
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return final_config |
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def deep_update(d, u): |
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""" |
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Recursively update a nested dictionary. |
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Just like in Gammapy, taken from: https://stackoverflow.com/a/3233356/19802442 |
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""" |
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for k, v in u.items(): |
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if isinstance(v, Mapping): |
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d[k] = deep_update(d.get(k, {}), v) |
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else: |
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d[k] = v |
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return d |
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def compound_model_dict_converstion(dict): |
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""" |
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Given a Gammapy CompoundSpectralModel as a dict object, convert it into |
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an Asgardpy form. |
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""" |
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ebl_abs = dict["model2"] |
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ebl_abs["alpha_norm"] = ebl_abs["parameters"][0]["value"] |
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ebl_abs["redshift"] = ebl_abs["parameters"][1]["value"] |
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ebl_abs.pop("parameters", None) |
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dict["type"] = dict["model1"]["type"] |
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dict["parameters"] = dict["model1"]["parameters"] |
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dict["ebl_abs"] = ebl_abs |
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dict.pop("model1", None) |
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dict.pop("model2", None) |
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dict.pop("operator", None) |
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return dict |
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chaimain /
asgardpy
