Source code for lale.lib.autogen.sparse_pca

from sklearn.decomposition.sparse_pca import SparsePCA as SKLModel
import lale.helpers
import lale.operators
from numpy import nan, inf

class SparsePCAImpl():

    def __init__(self, n_components=None, alpha=1, ridge_alpha=0.01, max_iter=1000, tol=1e-08, method='lars', n_jobs=None, U_init=None, V_init=None, verbose=False, random_state=None, normalize_components=False):
        self._hyperparams = {
            'n_components': n_components,
            'alpha': alpha,
            'ridge_alpha': ridge_alpha,
            'max_iter': max_iter,
            'tol': tol,
            'method': method,
            'n_jobs': n_jobs,
            'U_init': U_init,
            'V_init': V_init,
            'verbose': verbose,
            'random_state': random_state,
            'normalize_components': normalize_components}

    def fit(self, X, y=None):
        self._sklearn_model = SKLModel(**self._hyperparams)
        if (y is not None):
            self._sklearn_model.fit(X, y)
        else:
            self._sklearn_model.fit(X)
        return self

    def transform(self, X):
        return self._sklearn_model.transform(X)
_hyperparams_schema = {
    '$schema': 'http://json-schema.org/draft-04/schema#',
    'description': 'inherited docstring for SparsePCA    Sparse Principal Components Analysis (SparsePCA)',
    'allOf': [{
        'type': 'object',
        'required': ['n_components', 'alpha', 'ridge_alpha', 'max_iter', 'tol', 'method', 'n_jobs', 'U_init', 'V_init', 'verbose', 'random_state', 'normalize_components'],
        'relevantToOptimizer': ['n_components', 'alpha', 'max_iter', 'tol', 'method'],
        'additionalProperties': False,
        'properties': {
            'n_components': {
                'anyOf': [{
                    'type': 'integer',
                    'minimumForOptimizer': 2,
                    'maximumForOptimizer': 256,
                    'distribution': 'uniform'}, {
                    'enum': [None]}],
                'default': None,
                'description': 'Number of sparse atoms to extract.'},
            'alpha': {
                'type': 'number',
                'minimumForOptimizer': 1e-10,
                'maximumForOptimizer': 1.0,
                'distribution': 'loguniform',
                'default': 1,
                'description': 'Sparsity controlling parameter. Higher values lead to sparser'},
            'ridge_alpha': {
                'type': 'number',
                'default': 0.01,
                'description': 'Amount of ridge shrinkage to apply in order to improve'},
            'max_iter': {
                'type': 'integer',
                'minimumForOptimizer': 10,
                'maximumForOptimizer': 1000,
                'distribution': 'uniform',
                'default': 1000,
                'description': 'Maximum number of iterations to perform.'},
            'tol': {
                'type': 'number',
                'minimumForOptimizer': 1e-08,
                'maximumForOptimizer': 0.01,
                'distribution': 'loguniform',
                'default': 1e-08,
                'description': 'Tolerance for the stopping condition.'},
            'method': {
                'enum': ['lars', 'cd'],
                'default': 'lars',
                'description': 'lars: uses the least angle regression method to solve the lasso problem'},
            'n_jobs': {
                'anyOf': [{
                    'type': 'integer'}, {
                    'enum': [None]}],
                'default': None,
                'description': 'Number of parallel jobs to run.'},
            'U_init': {
                'anyOf': [{
                    'type': 'array',
                    'items': {
                        'type': 'array',
                        'items': {
                            'type': 'number'},
                    }}, {
                    'enum': [None]}],
                'default': None,
                'description': 'Initial values for the loadings for warm restart scenarios.'},
            'V_init': {
                'anyOf': [{
                    'type': 'array',
                    'items': {
                        'type': 'array',
                        'items': {
                            'type': 'number'},
                    }}, {
                    'enum': [None]}],
                'default': None,
                'description': 'Initial values for the components for warm restart scenarios.'},
            'verbose': {
                'anyOf': [{
                    'type': 'integer'}, {
                    'type': 'boolean'}],
                'default': False,
                'description': 'Controls the verbosity; the higher, the more messages. Defaults to 0.'},
            'random_state': {
                'anyOf': [{
                    'type': 'integer'}, {
                    'type': 'object'}, {
                    'enum': [None]}],
                'default': None,
                'description': 'If int, random_state is the seed used by the random number generator;'},
            'normalize_components': {
                'type': 'boolean',
                'default': False,
                'description': '- if False, use a version of Sparse PCA without components'},
        }}],
}
_input_fit_schema = {
    '$schema': 'http://json-schema.org/draft-04/schema#',
    'description': 'Fit the model from data in X.',
    'type': 'object',
    'properties': {
        'X': {
            'type': 'array',
            'items': {
                'type': 'array',
                'items': {
                    'type': 'number'},
            },
            'description': 'Training vector, where n_samples in the number of samples'},
        'y': {
            
        }},
}
_input_transform_schema = {
    '$schema': 'http://json-schema.org/draft-04/schema#',
    'description': 'Least Squares projection of the data onto the sparse components.',
    'type': 'object',
    'properties': {
        'X': {
            'type': 'array',
            'items': {
                'type': 'array',
                'items': {
                    'type': 'number'},
            },
            'description': 'Test data to be transformed, must have the same number of'},
        'ridge_alpha': {
            'type': 'number',
            'default': 0.01,
            'description': 'Amount of ridge shrinkage to apply in order to improve'},
    },
}
_output_transform_schema = {
    '$schema': 'http://json-schema.org/draft-04/schema#',
    'description': 'Transformed data.',
    'XXX TODO XXX': '',
}
_combined_schemas = {
    '$schema': 'http://json-schema.org/draft-04/schema#',
    'description': 'Combined schema for expected data and hyperparameters.',
    'type': 'object',
    'tags': {
        'pre': [],
        'op': ['transformer'],
        'post': []},
    'properties': {
        'hyperparams': _hyperparams_schema,
        'input_fit': _input_fit_schema,
        'input_transform': _input_transform_schema,
        'output_transform': _output_transform_schema},
}
if (__name__ == '__main__'):
    lale.helpers.validate_is_schema(_combined_schemas)
SparsePCA = lale.operators.make_operator(SparsePCAImpl, _combined_schemas)