module plotting.visualize
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Short summary#
module mlinsights.plotting.visualize
Helpers to visualize a pipeline.
Functions#
function |
truncated documentation |
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Internal function to convert a pipeline into some graph. |
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Exports a scikit-learn pipeline to DOT language. See Visualize a scikit-learn pipeline for an example. |
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Exports a scikit-learn pipeline to text. |
Documentation#
Helpers to visualize a pipeline.
- mlinsights.plotting.visualize._pipeline_info(pipe, data, context, former_data=None)#
Internal function to convert a pipeline into some graph.
- mlinsights.plotting.visualize.pipeline2dot(pipe, data, **params)#
Exports a scikit-learn pipeline to DOT language. See Visualize a scikit-learn pipeline for an example.
- Parameters:
pipe – scikit-learn pipeline
data – training data as a dataframe or a numpy array, or just a list with the variable names
params – additional params to draw the graph
- Returns:
string
Default options for the graph are:
options = { 'orientation': 'portrait', 'ranksep': '0.25', 'nodesep': '0.05', 'width': '0.5', 'height': '0.1', }
- mlinsights.plotting.visualize.pipeline2str(pipe, indent=3)#
Exports a scikit-learn pipeline to text.
- Parameters:
pipe – scikit-learn pipeline
- Returns:
str
<<<
from sklearn.linear_model import LogisticRegression from sklearn.impute import SimpleImputer from sklearn.preprocessing import OneHotEncoder from sklearn.preprocessing import StandardScaler, MinMaxScaler from sklearn.compose import ColumnTransformer from sklearn.pipeline import Pipeline from mlinsights.plotting import pipeline2str numeric_features = ['age', 'fare'] numeric_transformer = Pipeline(steps=[ ('imputer', SimpleImputer(strategy='median')), ('scaler', StandardScaler())]) categorical_features = ['embarked', 'sex', 'pclass'] categorical_transformer = Pipeline(steps=[ ('imputer', SimpleImputer(strategy='constant', fill_value='missing')), ('onehot', OneHotEncoder(handle_unknown='ignore'))]) preprocessor = ColumnTransformer( transformers=[ ('num', numeric_transformer, numeric_features), ('cat', categorical_transformer, categorical_features), ]) clf = Pipeline(steps=[('preprocessor', preprocessor), ('classifier', LogisticRegression(solver='lbfgs'))]) text = pipeline2str(clf) print(text)
>>>
Pipeline ColumnTransformer Pipeline(age,fare) SimpleImputer StandardScaler Pipeline(embarked,sex,pclass) SimpleImputer OneHotEncoder LogisticRegression