Fix issue 7

docs/conf.py

@@ -12,16 +12,17 @@
 #
 import os
 import sys
-sys.path.insert(0, os.path.abspath('../src'))
+
+sys.path.insert(0, os.path.abspath("../src"))
 print(sys.path[0])
 sys.setrecursionlimit(1500)
 
 
 # -- Project information -----------------------------------------------------
 
-project = 'tryangle'
-copyright = '2021, Caesar Balona & Ronald Richman'
-author = 'Caesar Balona & Ronald Richman'
+project = "tryangle"
+copyright = "2021, Caesar Balona & Ronald Richman"
+author = "Caesar Balona & Ronald Richman"
 
 
 # -- General configuration ---------------------------------------------------
@@ -30,29 +31,29 @@
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
 # ones.
 extensions = [
-    'sphinx.ext.autodoc',
-    'sphinx.ext.napoleon',
-    'sphinx.ext.autosummary',
+    "sphinx.ext.autodoc",
+    "sphinx.ext.napoleon",
+    "sphinx.ext.autosummary",
 ]
 autosummary_generate = True
 
 # Add any paths that contain templates here, relative to this directory.
-templates_path = ['_templates']
+templates_path = ["_templates"]
 
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.
 # This pattern also affects html_static_path and html_extra_path.
-exclude_patterns = ['_build', 'Thumbs.db', '.DS_Store']
+exclude_patterns = ["_build", "Thumbs.db", ".DS_Store"]
 
 
 # -- Options for HTML output -------------------------------------------------
 
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
 #
-html_theme = 'alabaster'
+html_theme = "alabaster"
 
 # Add any paths that contain custom static files (such as style sheets) here,
 # relative to this directory. They are copied after the builtin static files,
 # so a file named "default.css" will overwrite the builtin "default.css".
-html_static_path = ['_static']
+html_static_path = ["_static"]

examples/plot_auto_ensemble.py

@@ -6,6 +6,7 @@
 Finds optimal weights to combine chainladder and bornhuetter
 ferguson methods to reduce prediction error.
 """
+
 from tryangle.model_selection import TriangleSplit
 from tryangle.utils.datasets import load_sample
 from tryangle.ensemble import AutoEnsemble, Adam

examples/plot_gridsearch_pipeline.py

@@ -9,6 +9,7 @@
 Since selecting development factors is a transformation,
 it can be pipelined with an estimator
 """
+
 from sklearn.model_selection import GridSearchCV
 from sklearn.pipeline import Pipeline
 from tryangle import Development, CapeCod

pyproject.toml

@@ -17,13 +17,14 @@ classifiers = [
     "Topic :: Office/Business :: Financial",
     "Topic :: Scientific/Engineering :: Artificial Intelligence",
 ]
-dependencies = ["chainladder<=0.8.14", "pandas<2.0", "scikit-learn>=1.2"]
+dependencies = [
+    "chainladder>=0.8,<=0.8.24"
+]
 license = { text = "MPL-2.0" }
-requires-python = ">=3.11"
+requires-python = ">=3.9"
 
 [project.urls]
 Homepage = "https://github.com/casact/tryangle"
 
 [project.optional-dependencies]
-dev = ["ruff", "black", "mypy", "pytest", "tox", "twine"]
-
+dev = ["ruff", "black", "mypy", "pytest", "tox", "twine", "tox-uv"]

src/tryangle/ensemble/base.py

@@ -186,7 +186,7 @@ def preprocess(self, X, y=None, sample_weight=None):
                         clone(clf),
                         X,
                         X,
-                        sample_weight=None,
+                        fit_params={},
                         message_clsname=f"Preprocessing - {names[idx]}_expected",
                         message=self._log_message(names[idx], idx + 1, len(clfs)),
                     ),

src/tryangle/metrics/score.py

@@ -3,12 +3,11 @@
 # file, You can obtain one at https://mozilla.org/MPL/2.0/.
 
 import numpy as np
+from sklearn.metrics import mean_squared_error
+from sklearn.metrics._scorer import _BaseScorer
 
 from tryangle.metrics.base import get_actual_expected
 
-from sklearn.metrics._scorer import _BaseScorer
-from sklearn.metrics import mean_squared_error
-
 
 class AVEScore(_BaseScorer):
     """Base AvE scoring class"""
@@ -17,9 +16,13 @@ def __init__(
         self,
         score_func=mean_squared_error,
         sign=-1,
-        kwargs={"squared": False},
+        kwargs=None,
         weighted=False,
     ):
+
+        if kwargs is None:
+            kwargs = {}
+
         self.weighted = weighted
         super().__init__(score_func, sign, kwargs)
 

src/tryangle/utils/datasets.py

@@ -36,7 +36,7 @@ def load_sample(key, *args, **kwargs):
         columns=columns,
         cumulative=True,
         *args,
-        **kwargs
+        **kwargs,
     )
     sample_weight = Triangle(
         sample_weight,
@@ -46,7 +46,7 @@ def load_sample(key, *args, **kwargs):
         columns=["premium"],
         cumulative=True,
         *args,
-        **kwargs
+        **kwargs,
     ).latest_diagonal
 
     return TryangleData(claim, sample_weight)
@@ -73,7 +73,7 @@ def load_test_sample(key, *args, **kwargs):
         columns=["claim"],
         cumulative=True,
         *args,
-        **kwargs
+        **kwargs,
     )
 
     if key.lower() in ["swiss"]:

tests/test_ensemble.py

@@ -3,11 +3,12 @@
 # file, You can obtain one at https://mozilla.org/MPL/2.0/.
 
 import os
-from distutils import dir_util
+import shutil
 
 import numpy as np
 import pytest
 from chainladder.utils import load_sample
+
 from tryangle.core.base import TryangleData
 from tryangle.core.methods import BornhuetterFerguson, CapeCod, Chainladder
 from tryangle.ensemble.base import AutoEnsemble
@@ -46,7 +47,7 @@ def data_dir(tmpdir, request):
     test_dir, _ = os.path.splitext(filename)
 
     if os.path.isdir(test_dir):
-        dir_util.copy_tree(test_dir, str(tmpdir))
+        shutil.copytree(test_dir, str(tmpdir), dirs_exist_ok=True)
 
     return tmpdir
 

tox.ini

@@ -1,11 +1,41 @@
 [tox]
-envlist = {py3.9.17, py3.10.12, py3.11.4}-chainladder{0.8.14}
+envlist = py3.{9-13}-chainladder0.8.{24, 23, 22, 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0}
 
 [testenv]
 # install pytest in the virtualenv where commands will be executed
 deps =
     pytest
-    chainladder0.8.14: chainladder==0.8.14
+    sparse<0.16
 commands =
     # NOTE: you can run any command line tool here - not just tests
-    pytest
+    pytest {posargs:tests}
+
+[testenv:chainladder]
+description = run tests with multiple versions
+deps =
+    0.8.24: chainladder==0.8.24
+    0.8.23: chainladder==0.8.23
+    0.8.22: chainladder==0.8.22
+    0.8.20: chainladder==0.8.20
+    0.8.19: chainladder==0.8.19
+    0.8.18: chainladder==0.8.18
+    0.8.17: chainladder==0.8.17
+    0.8.16: chainladder==0.8.16
+    0.8.15: chainladder==0.8.15
+    0.8.14: chainladder==0.8.14
+    0.8.13: chainladder==0.8.13
+    0.8.12: chainladder==0.8.12
+    0.8.11: chainladder==0.8.11
+    0.8.10: chainladder==0.8.10
+    0.8.9: chainladder==0.8.9
+    0.8.8: chainladder==0.8.8
+    0.8.7: chainladder==0.8.7
+    0.8.6: chainladder==0.8.6
+    0.8.5: chainladder==0.8.5
+    0.8.4: chainladder==0.8.4
+    0.8.3: chainladder==0.8.3
+    0.8.2: chainladder==0.8.2
+    0.8.1: chainladder==0.8.1
+    0.8.0: chainladder==0.8.0
+commands =
+    pytest {posargs:tests}