Repository 'sklearn_svm_classifier'
hg clone https://toolshed.g2.bx.psu.edu/repos/bgruening/sklearn_svm_classifier

Changeset 11:7d7379dfef8b (2019-09-13)
Previous changeset 10:153f237ddb36 (2019-08-09) Next changeset 12:73d2ef652879 (2019-10-02)
Commit message:
"planemo upload for repository https://github.com/bgruening/galaxytools/tree/master/tools/sklearn commit ba6a47bdf76bbf4cb276206ac1a8cbf61332fd16"
modified:
keras_deep_learning.py
keras_macros.xml
main_macros.xml
model_prediction.py
search_model_validation.py
test-data/keras02.json
test-data/keras_batch_model01
test-data/keras_batch_model02
test-data/keras_batch_model03
test-data/pipeline14
test-data/pipeline16
train_test_eval.py
added:
ml_visualization_ex.py
test-data/grid_scores_.tabular
test-data/ml_vis01.html
test-data/ml_vis02.html
test-data/ml_vis03.html
test-data/ml_vis04.html
test-data/ml_vis05.html
test-data/ml_vis05.png
test-data/y_score.tabular
test-data/y_true.tabular
b
diff -r 153f237ddb36 -r 7d7379dfef8b keras_deep_learning.py
--- a/keras_deep_learning.py Fri Aug 09 07:08:07 2019 -0400
+++ b/keras_deep_learning.py Fri Sep 13 12:12:23 2019 -0400
[
@@ -8,7 +8,10 @@
 
 from ast import literal_eval
 from keras.models import Sequential, Model
-from galaxy_ml.utils import try_get_attr, get_search_params
+from galaxy_ml.utils import try_get_attr, get_search_params, SafeEval
+
+
+safe_eval = SafeEval()
 
 
 def _handle_shape(literal):
@@ -100,13 +103,14 @@
         if key in ['input_shape', 'noise_shape', 'shape', 'batch_shape',
                    'target_shape', 'dims', 'kernel_size', 'strides',
                    'dilation_rate', 'output_padding', 'cropping', 'size',
-                   'padding', 'pool_size', 'axis', 'shared_axes']:
+                   'padding', 'pool_size', 'axis', 'shared_axes'] \
+                and isinstance(value, str):
             params[key] = _handle_shape(value)
 
-        elif key.endswith('_regularizer'):
+        elif key.endswith('_regularizer') and isinstance(value, dict):
             params[key] = _handle_regularizer(value)
 
-        elif key.endswith('_constraint'):
+        elif key.endswith('_constraint') and isinstance(value, dict):
             params[key] = _handle_constraint(value)
 
         elif key == 'function':  # No support for lambda/function eval
@@ -129,12 +133,15 @@
         options = layer['layer_selection']
         layer_type = options.pop('layer_type')
         klass = getattr(keras.layers, layer_type)
-        other_options = options.pop('layer_options', {})
-        options.update(other_options)
+        kwargs = options.pop('kwargs', '')
 
         # parameters needs special care
         options = _handle_layer_parameters(options)
 
+        if kwargs:
+            kwargs = safe_eval('dict(' + kwargs + ')')
+            options.update(kwargs)
+
         # add input_shape to the first layer only
         if not getattr(model, '_layers') and input_shape is not None:
             options['input_shape'] = input_shape
@@ -158,11 +165,15 @@
         layer_type = options.pop('layer_type')
         klass = getattr(keras.layers, layer_type)
         inbound_nodes = options.pop('inbound_nodes', None)
-        other_options = options.pop('layer_options', {})
-        options.update(other_options)
+        kwargs = options.pop('kwargs', '')
 
         # parameters needs special care
         options = _handle_layer_parameters(options)
+
+        if kwargs:
+            kwargs = safe_eval('dict(' + kwargs + ')')
+            options.update(kwargs)
+
         # merge layers
         if 'merging_layers' in options:
             idxs = literal_eval(options.pop('merging_layers'))
b
diff -r 153f237ddb36 -r 7d7379dfef8b keras_macros.xml
--- a/keras_macros.xml Fri Aug 09 07:08:07 2019 -0400
+++ b/keras_macros.xml Fri Sep 13 12:12:23 2019 -0400
[
b'@@ -1,5 +1,5 @@\n <macros>\n-  <token name="@KERAS_VERSION@">0.4.0</token>\n+  <token name="@KERAS_VERSION@">0.4.2</token>\n \n   <xml name="macro_stdio">\n     <stdio>\n@@ -24,34 +24,34 @@\n     </expand>\n   </xml>\n \n-  <xml name="keras_activations">\n+  <xml name="keras_activations" token_none="true" token_tanh="false">\n     <param argument="activation" type="select" label="Activation function">\n-      <option value="linear" selected="true">None / linear (default)</option>\n+      <option value="linear" selected="@NONE@">None / linear (default)</option>\n       <option value="softmax">softmax</option>\n       <option value="elu">elu</option>\n       <option value="selu">selu</option>\n       <option value="softplus">softplus</option>\n       <option value="softsign">softsign</option>\n       <option value="relu">relu</option>\n-      <option value="tanh">tanh</option>\n+      <option value="tanh" selected="@TANH@">tanh</option>\n       <option value="sigmoid">sigmoid</option>\n       <option value="hard_sigmoid">hard_sigmoid</option>\n       <option value="exponential">tanh</option>\n     </param>\n   </xml>\n \n-  <xml name="keras_initializers" token_argument="kernel_initializer" token_default_kernel="false" token_default_bias="false" token_default_embeddings="false">\n+  <xml name="keras_initializers" token_argument="kernel_initializer" token_default_glorot_uniform="false" token_default_zeros="false" token_default_random_uniform="false" token_default_ones="false">\n     <param argument="@ARGUMENT@" type="select" label="@ARGUMENT@">\n-      <option value="zeros" selected="@DEFAULT_BIAS@">zero / zeros / Zeros</option>\n-      <option value="ones">one / ones / Ones</option>\n+      <option value="zeros" selected="@DEFAULT_ZEROS@">zero / zeros / Zeros</option>\n+      <option value="ones" selected="@DEFAULT_ONES@">one / ones / Ones</option>\n       <option value="constant">constant / Constant</option>\n       <option value="random_normal">normal / random_normal / RandomNormal</option>\n-      <option value="random_uniform" selected="@DEFAULT_EMBEDDINGS@">uniform / random_uniform / RandomUniform</option>\n+      <option value="random_uniform" selected="@DEFAULT_RANDOM_UNIFORM@">uniform / random_uniform / RandomUniform</option>\n       <option value="truncated_normal">truncated_normal / TruncatedNormal</option>\n       <option value="orthogonal">orthogonal / Orthogonal</option>\n       <option value="identity">identity / Identity</option>\n       <option value="glorot_normal">glorot_normal</option>\n-      <option value="glorot_uniform" selected="@DEFAULT_KERNEL@">glorot_uniform</option>\n+      <option value="glorot_uniform" selected="@DEFAULT_GLOROT_UNIFORM@">glorot_uniform</option>\n       <option value="he_normal">he_normal</option>\n       <option value="he_uniform">he_uniform</option>\n       <option value="lecun_normal">lecun_normal</option>\n@@ -109,133 +109,120 @@\n   </xml>\n \n   <xml name="keras_layer_types_core">\n-    <option value="Dense">Dense</option>\n-    <option value="Activation">Activation</option>\n-    <option value="Dropout">Dropout</option>\n-    <option value="Flatten">Flatten</option>\n-    <option value="Reshape">Reshape</option>\n-    <option value="Permute">Permute</option>\n-    <option value="RepeatVector">RepeatVector</option>\n+    <option value="Dense">Core -- Dense</option>\n+    <option value="Activation">Core -- Activation</option>\n+    <option value="Dropout">Core -- Dropout</option>\n+    <option value="Flatten">Core -- Flatten</option>\n+    <option value="Reshape">Core -- Reshape</option>\n+    <option value="Permute">Core -- Permute</option>\n+    <option value="RepeatVector">Core -- RepeatVector</option>\n     <!--option value="Lambda">Lambda - Not supported</option-->\n-    <option value="ActivityRegularization">ActivityRegularization</option>\n-    <option value="Masking">Masking</option>\n-    <option value="SpatialDropout1D">SpatialDropout1D</option>\n-    <option value="SpatialDropout2D">SpatialDropout2D</option>\n-    <option value="SpatialDro'..b'r_CuDNNLSTM">\n+    <param argument="units" type="integer" value="" min="1" help="Positive integer, dimensionality of the output space."/>\n+    <expand macro="simple_kwargs" help="For example: kernel_initializer=\'glorot_uniform\', recurrent_initializer=\'orthogonal\', bias_initializer=\'zeros\', unit_forget_bias=True, kernel_regularizer=None, recurrent_regularizer=None, bias_regularizer=None, activity_regularizer=None, kernel_constraint=None, recurrent_constraint=None, bias_constraint=None, return_sequences=False, return_state=False, stateful=False. Leave blank for default."/>\n+    <yield/>\n+  </xml>\n+\n+\n   <!--Embedding Layers-->\n \n   <xml name="layer_Embedding">\n     <param argument="input_dim" type="integer" value="" min="0" help="int > 0. Size of the vocabulary, i.e. maximum integer index + 1."/>\n     <param argument="output_dim" type="integer" value="" min="0" help="int >= 0. Dimension of the dense embedding."/>\n-    <section name="layer_options" title="Layer Advanced Options" expanded="false">\n-      <expand macro="keras_initializers" argument="embeddings_initializer" default_embeddings="true"/>\n-      <expand macro="keras_regularizers" argument="embeddings_regularizer"/>\n-      <expand macro="keras_regularizers" argument="activity_regularizer"/>\n-      <expand macro="keras_constraints" argument="embeddings_constraint"/>\n-      <param argument="mask_zero" type="boolean" truevalue="booltrue" falsevalue="boolfalse" optional="true" checked="false"/>\n-      <param argument="input_length" type="integer" value="" optional="true" min="0" help="Length of input sequences. Required if connecting Flatten then Dense layers upstream"/>\n-    </section>\n+    <expand macro="simple_kwargs" help="For example: embeddings_initializer=\'uniform\', embeddings_regularizer=None, activity_regularizer=None, embeddings_constraint=None, mask_zero=False, input_length=None. Leave blank for default."/>\n     <yield/>\n   </xml>\n \n@@ -901,7 +637,7 @@\n   </xml>\n \n   <xml name="layer_PReLU">\n-    <expand macro="keras_initializers" argument="alpha_initializer" default_bias="true"/>\n+    <expand macro="keras_initializers" argument="alpha_initializer" default_zeros="true"/>\n     <expand macro="keras_regularizers" argument="alpha_regularizer"/>\n     <expand macro="keras_constraints" argument="alpha_constraint"/>\n     <param argument="shared_axes" type="text" value="" help="the axes along which to share learnable parameters for the activation function. E.g. [1, 2]">\n@@ -939,13 +675,34 @@\n \n   <!--Normalization Layers-->\n \n+  <xml name="layer_BatchNormalization">\n+    <expand macro="simple_kwargs" help="For example: axis=-1, momentum=0.99, epsilon=0.001, center=True, scale=True, beta_initializer=\'zeros\', gamma_initializer=\'ones\', moving_mean_initializer=\'zeros\', moving_variance_initializer=\'ones\', beta_regularizer=None, gamma_regularizer=None, beta_constraint=None, gamma_constraint=None. Leave blank for default."/>\n+  </xml>\n+\n   <!--Noise layers-->\n \n+  <xml name="layer_GaussianNoise">\n+    <param argument="stddev" type="float" value="" help="float, standard deviation of the noise distribution."/>\n+  </xml>\n+\n+  <xml name="layer_GaussianDropout">\n+    <param argument="rate" type="float" value="" help="drop probability, (as with `Dropout`). The multiplicative noise will have standard deviation `sqrt(rate / (1 - rate))`"/>\n+  </xml>\n+\n+  <xml name="layer_AlphaDropout">\n+    <expand macro="layer_Dropout"/>\n+  </xml>\n+\n   <xml name="inbound_nodes_index">\n     <param name="inbound_nodes" type="integer" value="" label="Type the index number of input layer"\n           help="Find the index number at the left top corner of layer configuration block"/>\n   </xml>\n \n+  <!--Simple key words text parameters, conbined to reduce UI latency-->\n+\n+  <xml name="simple_kwargs" token_help="Leave blank for default.">\n+    <param argument="kwargs" type="text" value="" label="Type in key words arguments if different from the default" help="@HELP@"/>\n+  </xml>\n \n   <!-- Keras CallBacks -->\n \n'
b
diff -r 153f237ddb36 -r 7d7379dfef8b main_macros.xml
--- a/main_macros.xml Fri Aug 09 07:08:07 2019 -0400
+++ b/main_macros.xml Fri Sep 13 12:12:23 2019 -0400
b
@@ -1,12 +1,12 @@
 <macros>
-  <token name="@VERSION@">1.0.7.10</token>
+  <token name="@VERSION@">1.0.7.12</token>
 
   <token name="@ENSEMBLE_VERSION@">0.2.0</token>
 
   <xml name="python_requirements">
       <requirements>
           <requirement type="package" version="3.6">python</requirement>
-          <requirement type="package" version="0.7.10">Galaxy-ML</requirement>
+          <requirement type="package" version="0.7.12">Galaxy-ML</requirement>
           <yield/>
       </requirements>
   </xml>
@@ -1379,7 +1379,7 @@
       <expand macro="model_validation_common_options"/>
       <!--expand macro="pre_dispatch" default_value="2*n_jobs" help="Controls the number of jobs that get dispatched during parallel execution"/-->
       <param argument="iid" type="boolean" truevalue="booltrue" falsevalue="boolfalse" checked="true" label="iid" help="If True, data is identically distributed across the folds"/>
-      <param argument="refit" type="boolean" truevalue="booltrue" falsevalue="boolfalse" checked="true" label="refit" help="Refit an estimator using the best found parameters on the whole dataset."/>
+      <param argument="refit" type="boolean" truevalue="booltrue" falsevalue="boolfalse" checked="true" label="refit" help="Refit an estimator using the best found parameters on the whole dataset. Be aware that `refit=True` invokes extra computation, but it's REQUIRED for outputting the best estimator!"/>
       <param argument="error_score" type="boolean" truevalue="booltrue" falsevalue="boolfalse" checked="true" label="Raise fit error:" help="If false, the metric score is assigned to NaN if an error occurs in estimator fitting and FitFailedWarning is raised."/>
       <param argument="return_train_score" type="boolean" truevalue="booltrue" falsevalue="boolfalse" checked="false" label="return_train_score" help=""/>
   </xml>
b
diff -r 153f237ddb36 -r 7d7379dfef8b ml_visualization_ex.py
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/ml_visualization_ex.py Fri Sep 13 12:12:23 2019 -0400
[
b'@@ -0,0 +1,305 @@\n+import argparse\n+import json\n+import numpy as np\n+import pandas as pd\n+import plotly\n+import plotly.graph_objs as go\n+import warnings\n+\n+from keras.models import model_from_json\n+from keras.utils import plot_model\n+from sklearn.feature_selection.base import SelectorMixin\n+from sklearn.metrics import precision_recall_curve, average_precision_score\n+from sklearn.metrics import roc_curve, auc\n+from sklearn.pipeline import Pipeline\n+from galaxy_ml.utils import load_model, read_columns, SafeEval\n+\n+\n+safe_eval = SafeEval()\n+\n+\n+def main(inputs, infile_estimator=None, infile1=None,\n+         infile2=None, outfile_result=None,\n+         outfile_object=None, groups=None,\n+         ref_seq=None, intervals=None,\n+         targets=None, fasta_path=None,\n+         model_config=None):\n+    """\n+    Parameter\n+    ---------\n+    inputs : str\n+        File path to galaxy tool parameter\n+\n+    infile_estimator : str, default is None\n+        File path to estimator\n+\n+    infile1 : str, default is None\n+        File path to dataset containing features or true labels.\n+\n+    infile2 : str, default is None\n+        File path to dataset containing target values or predicted\n+        probabilities.\n+\n+    outfile_result : str, default is None\n+        File path to save the results, either cv_results or test result\n+\n+    outfile_object : str, default is None\n+        File path to save searchCV object\n+\n+    groups : str, default is None\n+        File path to dataset containing groups labels\n+\n+    ref_seq : str, default is None\n+        File path to dataset containing genome sequence file\n+\n+    intervals : str, default is None\n+        File path to dataset containing interval file\n+\n+    targets : str, default is None\n+        File path to dataset compressed target bed file\n+\n+    fasta_path : str, default is None\n+        File path to dataset containing fasta file\n+\n+    model_config : str, default is None\n+        File path to dataset containing JSON config for neural networks\n+    """\n+    warnings.simplefilter(\'ignore\')\n+\n+    with open(inputs, \'r\') as param_handler:\n+        params = json.load(param_handler)\n+\n+    title = params[\'plotting_selection\'][\'title\'].strip()\n+    plot_type = params[\'plotting_selection\'][\'plot_type\']\n+    if plot_type == \'feature_importances\':\n+        with open(infile_estimator, \'rb\') as estimator_handler:\n+            estimator = load_model(estimator_handler)\n+\n+        column_option = (params[\'plotting_selection\']\n+                               [\'column_selector_options\']\n+                               [\'selected_column_selector_option\'])\n+        if column_option in [\'by_index_number\', \'all_but_by_index_number\',\n+                             \'by_header_name\', \'all_but_by_header_name\']:\n+            c = (params[\'plotting_selection\']\n+                       [\'column_selector_options\'][\'col1\'])\n+        else:\n+            c = None\n+\n+        _, input_df = read_columns(infile1, c=c,\n+                                   c_option=column_option,\n+                                   return_df=True,\n+                                   sep=\'\\t\', header=\'infer\',\n+                                   parse_dates=True)\n+\n+        feature_names = input_df.columns.values\n+\n+        if isinstance(estimator, Pipeline):\n+            for st in estimator.steps[:-1]:\n+                if isinstance(st[-1], SelectorMixin):\n+                    mask = st[-1].get_support()\n+                    feature_names = feature_names[mask]\n+            estimator = estimator.steps[-1][-1]\n+\n+        if hasattr(estimator, \'coef_\'):\n+            coefs = estimator.coef_\n+        else:\n+            coefs = getattr(estimator, \'feature_importances_\', None)\n+        if coefs is None:\n+            raise RuntimeError(\'The classifier does not expose \'\n+                               \'"coef_" or "feature_importances_" \'\n+                               \'attributes\')\n+\n+        threshold = params[\'plotting_selection\'][\'threshold\']\n+        if '..b'o.Scatter(x=[0, 1], y=[0, 1], \n+                           mode=\'lines\', \n+                           line=dict(color=\'black\', dash=\'dash\'),\n+                           showlegend=False)\n+        data.append(trace)\n+\n+        layout = go.Layout(\n+            title=title or "Receiver operating characteristic curve",\n+            xaxis=dict(title=\'False Positive Rate\'),\n+            yaxis=dict(title=\'True Positive Rate\')\n+        )\n+\n+        fig = go.Figure(data=data, layout=layout)\n+\n+    elif plot_type == \'rfecv_gridscores\':\n+        input_df = pd.read_csv(infile1, sep=\'\\t\', header=\'infer\')\n+        scores = input_df.iloc[:, 0]\n+        steps = params[\'plotting_selection\'][\'steps\'].strip()\n+        steps = safe_eval(steps)\n+\n+        data = go.Scatter(\n+            x=list(range(len(scores))),\n+            y=scores,\n+            text=[str(_) for _ in steps] if steps else None,\n+            mode=\'lines\'\n+        )\n+        layout = go.Layout(\n+            xaxis=dict(title="Number of features selected"),\n+            yaxis=dict(title="Cross validation score"),\n+            title=title or None\n+        )\n+\n+        fig = go.Figure(data=[data], layout=layout)\n+\n+    elif plot_type == \'learning_curve\':\n+        input_df = pd.read_csv(infile1, sep=\'\\t\', header=\'infer\')\n+        plot_std_err = params[\'plotting_selection\'][\'plot_std_err\']\n+        data1 = go.Scatter(\n+            x=input_df[\'train_sizes_abs\'],\n+            y=input_df[\'mean_train_scores\'],\n+            error_y=dict(\n+                array=input_df[\'std_train_scores\']\n+            ) if plot_std_err else None,\n+            mode=\'lines\',\n+            name="Train Scores",\n+        )\n+        data2 = go.Scatter(\n+            x=input_df[\'train_sizes_abs\'],\n+            y=input_df[\'mean_test_scores\'],\n+            error_y=dict(\n+                array=input_df[\'std_test_scores\']\n+            ) if plot_std_err else None,\n+            mode=\'lines\',\n+            name="Test Scores",\n+        )\n+        layout = dict(\n+            xaxis=dict(\n+                title=\'No. of samples\'\n+            ),\n+            yaxis=dict(\n+                title=\'Performance Score\'\n+            ),\n+            title=title or \'Learning Curve\'\n+        )\n+        fig = go.Figure(data=[data1, data2], layout=layout)\n+\n+    elif plot_type == \'keras_plot_model\':\n+        with open(model_config, \'r\') as f:\n+            model_str = f.read()\n+        model = model_from_json(model_str)\n+        plot_model(model, to_file="output.png")\n+        __import__(\'os\').rename(\'output.png\', \'output\')\n+\n+        return 0\n+\n+    plotly.offline.plot(fig, filename="output.html",\n+                        auto_open=False)\n+    # to be discovered by `from_work_dir`\n+    __import__(\'os\').rename(\'output.html\', \'output\')\n+\n+\n+if __name__ == \'__main__\':\n+    aparser = argparse.ArgumentParser()\n+    aparser.add_argument("-i", "--inputs", dest="inputs", required=True)\n+    aparser.add_argument("-e", "--estimator", dest="infile_estimator")\n+    aparser.add_argument("-X", "--infile1", dest="infile1")\n+    aparser.add_argument("-y", "--infile2", dest="infile2")\n+    aparser.add_argument("-O", "--outfile_result", dest="outfile_result")\n+    aparser.add_argument("-o", "--outfile_object", dest="outfile_object")\n+    aparser.add_argument("-g", "--groups", dest="groups")\n+    aparser.add_argument("-r", "--ref_seq", dest="ref_seq")\n+    aparser.add_argument("-b", "--intervals", dest="intervals")\n+    aparser.add_argument("-t", "--targets", dest="targets")\n+    aparser.add_argument("-f", "--fasta_path", dest="fasta_path")\n+    aparser.add_argument("-c", "--model_config", dest="model_config")\n+    args = aparser.parse_args()\n+\n+    main(args.inputs, args.infile_estimator, args.infile1, args.infile2,\n+         args.outfile_result, outfile_object=args.outfile_object,\n+         groups=args.groups, ref_seq=args.ref_seq, intervals=args.intervals,\n+         targets=args.targets, fasta_path=args.fasta_path,\n+         model_config=args.model_config)\n'
b
diff -r 153f237ddb36 -r 7d7379dfef8b model_prediction.py
--- a/model_prediction.py Fri Aug 09 07:08:07 2019 -0400
+++ b/model_prediction.py Fri Sep 13 12:12:23 2019 -0400
[
@@ -2,11 +2,13 @@
 import json
 import numpy as np
 import pandas as pd
+import tabix
 import warnings
 
 from scipy.io import mmread
 from sklearn.pipeline import Pipeline
 
+from galaxy_ml.externals.selene_sdk.sequences import Genome
 from galaxy_ml.utils import (load_model, read_columns,
                              get_module, try_get_attr)
 
@@ -138,53 +140,108 @@
 
         pred_data_generator.fit()
 
-        preds = estimator.model_.predict_generator(
-            pred_data_generator.flow(batch_size=32),
-            workers=N_JOBS,
-            use_multiprocessing=True)
+        variants = pred_data_generator.variants
+        # TODO : remove the following block after galaxy-ml v0.7.13
+        blacklist_tabix = getattr(pred_data_generator.reference_genome_,
+                                  '_blacklist_tabix', None)
+        clean_variants = []
+        if blacklist_tabix:
+            start_radius = pred_data_generator.start_radius_
+            end_radius = pred_data_generator.end_radius_
+
+            for chrom, pos, name, ref, alt, strand in variants:
+                center = pos + len(ref) // 2
+                start = center - start_radius
+                end = center + end_radius
 
-        if preds.min() < 0. or preds.max() > 1.:
-            warnings.warn('Network returning invalid probability values. '
-                          'The last layer might not normalize predictions '
-                          'into probabilities '
-                          '(like softmax or sigmoid would).')
+                if isinstance(pred_data_generator.reference_genome_, Genome):
+                    if "chr" not in chrom:
+                        chrom = "chr" + chrom
+                    if "MT" in chrom:
+                        chrom = chrom[:-1]
+                try:
+                    rows = blacklist_tabix.query(chrom, start, end)
+                    found = 0
+                    for row in rows:
+                        found = 1
+                        break
+                    if found:
+                        continue
+                except tabix.TabixError:
+                    pass
 
-        if params['method'] == 'predict_proba' and preds.shape[1] == 1:
-            # first column is probability of class 0 and second is of class 1
-            preds = np.hstack([1 - preds, preds])
+                clean_variants.append((chrom, pos, name, ref, alt, strand))
+        else:
+            clean_variants = variants
+
+        setattr(pred_data_generator, 'variants', clean_variants)
+
+        variants = np.array(clean_variants)
+        # predict 1600 sample at once then write to file
+        gen_flow = pred_data_generator.flow(batch_size=1600)
+
+        file_writer = open(outfile_predict, 'w')
+        header_row = '\t'.join(['chrom', 'pos', 'name', 'ref',
+                                'alt', 'strand'])
+        file_writer.write(header_row)
+        header_done = False
 
-        elif params['method'] == 'predict':
-            if preds.shape[-1] > 1:
-                # if the last activation is `softmax`, the sum of all
-                # probibilities will 1, the classification is considered as
-                # multi-class problem, otherwise, we take it as multi-label.
-                act = getattr(estimator.model_.layers[-1], 'activation', None)
-                if act and act.__name__ == 'softmax':
-                    classes = preds.argmax(axis=-1)
+        steps_done = 0
+
+        # TODO: multiple threading
+        try:
+            while steps_done < len(gen_flow):
+                index_array = next(gen_flow.index_generator)
+                batch_X = gen_flow._get_batches_of_transformed_samples(
+                    index_array)
+
+                if params['method'] == 'predict':
+                    batch_preds = estimator.predict(
+                        batch_X,
+                        # The presence of `pred_data_generator` below is to
+                        # override model carrying data_generator if there
+                        # is any.
+                        data_generator=pred_data_generator)
                 else:
-                    preds = (preds > 0.5).astype('int32')
-            else:
-                classes = (preds > 0.5).astype('int32')
+                    batch_preds = estimator.predict_proba(
+                        batch_X,
+                        # The presence of `pred_data_generator` below is to
+                        # override model carrying data_generator if there
+                        # is any.
+                        data_generator=pred_data_generator)
+
+                if batch_preds.ndim == 1:
+                    batch_preds = batch_preds[:, np.newaxis]
+
+                batch_meta = variants[index_array]
+                batch_out = np.column_stack([batch_meta, batch_preds])
 
-            preds = estimator.classes_[classes]
+                if not header_done:
+                    heads = np.arange(batch_preds.shape[-1]).astype(str)
+                    heads_str = '\t'.join(heads)
+                    file_writer.write("\t%s\n" % heads_str)
+                    header_done = True
+
+                for row in batch_out:
+                    row_str = '\t'.join(row)
+                    file_writer.write("%s\n" % row_str)
+
+                steps_done += 1
+
+        finally:
+            file_writer.close()
+            # TODO: make api `pred_data_generator.close()`
+            pred_data_generator.close()
+        return 0
     # end input
 
     # output
-    if input_type == 'variant_effect':   # TODO: save in batchs
-        rval = pd.DataFrame(preds)
-        meta = pd.DataFrame(
-            pred_data_generator.variants,
-            columns=['chrom', 'pos', 'name', 'ref', 'alt', 'strand'])
-
-        rval = pd.concat([meta, rval], axis=1)
-
-    elif len(preds.shape) == 1:
+    if len(preds.shape) == 1:
         rval = pd.DataFrame(preds, columns=['Predicted'])
     else:
         rval = pd.DataFrame(preds)
 
-    rval.to_csv(outfile_predict, sep='\t',
-                header=True, index=False)
+    rval.to_csv(outfile_predict, sep='\t', header=True, index=False)
 
 
 if __name__ == '__main__':
b
diff -r 153f237ddb36 -r 7d7379dfef8b search_model_validation.py
--- a/search_model_validation.py Fri Aug 09 07:08:07 2019 -0400
+++ b/search_model_validation.py Fri Sep 13 12:12:23 2019 -0400
[
@@ -213,6 +213,16 @@
     with open(inputs, 'r') as param_handler:
         params = json.load(param_handler)
 
+    # conflict param checker
+    if params['outer_split']['split_mode'] == 'nested_cv' \
+            and params['save'] != 'nope':
+        raise ValueError("Save best estimator is not possible for nested CV!")
+
+    if not (params['search_schemes']['options']['refit']) \
+            and params['save'] != 'nope':
+        raise ValueError("Save best estimator is not possible when refit "
+                         "is False!")
+
     params_builder = params['search_schemes']['search_params_builder']
 
     with open(infile_estimator, 'rb') as estimator_handler:
@@ -542,7 +552,6 @@
             del main_est.validation_data
             if getattr(main_est, 'data_generator_', None):
                 del main_est.data_generator_
-                del main_est.data_batch_generator
 
         with open(outfile_object, 'wb') as output_handler:
             pickle.dump(best_estimator_, output_handler,
b
diff -r 153f237ddb36 -r 7d7379dfef8b test-data/grid_scores_.tabular
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test-data/grid_scores_.tabular Fri Sep 13 12:12:23 2019 -0400
b
@@ -0,0 +1,18 @@
+grid_scores_
+0.7634899597102532
+0.7953981831108754
+0.7937021172447345
+0.7951323776809974
+0.793206654688313
+0.8046265123256906
+0.7972524937034748
+0.8106427221191455
+0.8072746749161711
+0.8146665413082648
+0.8155998800333571
+0.8056801877422021
+0.8123573954396127
+0.8155472512482351
+0.8164562575257928
+0.8151250518677203
+0.8107710182153142
b
diff -r 153f237ddb36 -r 7d7379dfef8b test-data/keras02.json
--- a/test-data/keras02.json Fri Aug 09 07:08:07 2019 -0400
+++ b/test-data/keras02.json Fri Sep 13 12:12:23 2019 -0400
[
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diff -r 153f237ddb36 -r 7d7379dfef8b test-data/keras_batch_model01
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diff -r 153f237ddb36 -r 7d7379dfef8b test-data/keras_batch_model02
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diff -r 153f237ddb36 -r 7d7379dfef8b test-data/keras_batch_model03
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diff -r 153f237ddb36 -r 7d7379dfef8b test-data/ml_vis01.html
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test-data/ml_vis01.html Fri Sep 13 12:12:23 2019 -0400
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diff -r 153f237ddb36 -r 7d7379dfef8b test-data/ml_vis02.html
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+++ b/test-data/ml_vis02.html Fri Sep 13 12:12:23 2019 -0400
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diff -r 153f237ddb36 -r 7d7379dfef8b test-data/ml_vis03.html
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test-data/ml_vis03.html Fri Sep 13 12:12:23 2019 -0400
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diff -r 153f237ddb36 -r 7d7379dfef8b test-data/ml_vis04.html
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test-data/ml_vis04.html Fri Sep 13 12:12:23 2019 -0400
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diff -r 153f237ddb36 -r 7d7379dfef8b test-data/ml_vis05.html
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test-data/ml_vis05.html Fri Sep 13 12:12:23 2019 -0400
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diff -r 153f237ddb36 -r 7d7379dfef8b test-data/ml_vis05.png
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diff -r 153f237ddb36 -r 7d7379dfef8b test-data/y_score.tabular
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
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b
diff -r 153f237ddb36 -r 7d7379dfef8b test-data/y_true.tabular
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test-data/y_true.tabular Fri Sep 13 12:12:23 2019 -0400
b
@@ -0,0 +1,75 @@
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b
diff -r 153f237ddb36 -r 7d7379dfef8b train_test_eval.py
--- a/train_test_eval.py Fri Aug 09 07:08:07 2019 -0400
+++ b/train_test_eval.py Fri Sep 13 12:12:23 2019 -0400
b
@@ -403,7 +403,6 @@
             del main_est.validation_data
             if getattr(main_est, 'data_generator_', None):
                 del main_est.data_generator_
-                del main_est.data_batch_generator
 
         with open(outfile_object, 'wb') as output_handler:
             pickle.dump(estimator, output_handler,