.. DO NOT EDIT. .. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY. .. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE: .. "auto_tutorial/plot_cbegin_opset.py" .. LINE NUMBERS ARE GIVEN BELOW. .. only:: html .. note:: :class: sphx-glr-download-link-note :ref:`Go to the end ` to download the full example code. .. rst-class:: sphx-glr-example-title .. _sphx_glr_auto_tutorial_plot_cbegin_opset.py: What is the opset number? ========================= .. index:: opset, target opset, version Every library is versioned. :epkg:`scikit-learn` may change the implementation of a specific model. That happens for example with the `SVC `_ model where the parameter *break_ties* was added in 0.22. :epkg:`ONNX` does also have a version called *opset number*. Operator *ArgMin* was added in opset 1 and changed in opset 11, 12, 13. Sometimes, it is updated to extend the list of types it supports, sometimes, it moves a parameter into the input list. The runtime used to deploy the model does not implement a new version, in that case, a model must be converted by usually using the most recent opset supported by the runtime, we call that opset the *targeted opset*. An ONNX graph only contains one unique opset, every node must be described following the specifications defined by the latest opset below the targeted opset. This example considers an `IsolationForest `_ and digs into opsets. Data ++++ A simple example. .. GENERATED FROM PYTHON SOURCE LINES 36-54 .. code-block:: Python from onnx.defs import onnx_opset_version from skl2onnx import to_onnx import numpy import matplotlib.pyplot as plt from sklearn.ensemble import IsolationForest from sklearn.datasets import make_blobs X, y = make_blobs(n_samples=100, n_features=2) model = IsolationForest(n_estimators=3) model.fit(X) labels = model.predict(X) fig, ax = plt.subplots(1, 1) for k in (-1, 1): ax.plot(X[labels == k, 0], X[labels == k, 1], "o", label="cl%d" % k) ax.set_title("Sample") .. image-sg:: /auto_tutorial/images/sphx_glr_plot_cbegin_opset_001.png :alt: Sample :srcset: /auto_tutorial/images/sphx_glr_plot_cbegin_opset_001.png :class: sphx-glr-single-img .. GENERATED FROM PYTHON SOURCE LINES 55-57 ONNX ++++ .. GENERATED FROM PYTHON SOURCE LINES 57-64 .. code-block:: Python onx = to_onnx( model, X[:1].astype(numpy.float32), target_opset={"": 15, "ai.onnx.ml": 2} ) print(onx) .. rst-class:: sphx-glr-script-out .. code-block:: none ir_version: 8 opset_import { domain: "ai.onnx.ml" version: 2 } opset_import { domain: "" version: 15 } producer_name: "skl2onnx" producer_version: "1.17.0" domain: "ai.onnx" model_version: 0 doc_string: "" graph { node { input: "X" input: "node_sample0_Gathercst" output: "node_sample0_output0" name: "node_sample0_Gather" op_type: "Gather" domain: "" attribute { name: "axis" type: INT i: 1 } } node { input: "X" input: "node_sample0_Gathercst" output: "node_sample1_output0" name: "node_sample1_Gather" op_type: "Gather" domain: "" attribute { name: "axis" type: INT i: 1 } } node { input: "X" input: "node_sample0_Gathercst" output: "node_sample2_output0" name: "node_sample2_Gather" op_type: "Gather" domain: "" attribute { name: "axis" type: INT i: 1 } } node { input: 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ints: 0 ints: 0 } attribute { name: "target_weights" type: FLOATS floats: 7 floats: 8 floats: 10 floats: 11 floats: 14 floats: 15 floats: 17 floats: 18 floats: 22 floats: 23 floats: 25 floats: 26 floats: 29 floats: 30 floats: 31 floats: 36 floats: 37 floats: 38 floats: 39 floats: 40 floats: 43 floats: 44 floats: 47 floats: 48 floats: 50 floats: 53 floats: 54 floats: 56 floats: 57 floats: 62 floats: 63 floats: 65 floats: 68 floats: 69 floats: 71 floats: 72 floats: 74 floats: 76 floats: 77 floats: 79 floats: 80 } } node { input: "node_sample1_Y0" output: "node_sample1_output02" name: "node_sample1_Cast" op_type: "Cast" domain: "" attribute { name: "to" type: INT i: 7 } } node { input: "node_sample2_Y0" output: "node_sample2_output02" name: "node_sample2_Cast" op_type: "Cast" domain: "" attribute { name: "to" type: INT i: 7 } } node { input: "node_sample1_Y0" output: "path_length1_output0" name: "path_length1_Cast" op_type: "Cast" domain: "" attribute { name: "to" type: INT i: 7 } } node { input: "node_sample2_Y0" output: "path_length2_output0" name: "path_length2_Cast" op_type: "Cast" domain: "" attribute { name: "to" type: INT i: 7 } } node { input: "node_sample0_output02" output: "node_sample0_Y02" name: "node_sample0_LabelEncoder" op_type: "LabelEncoder" domain: "ai.onnx.ml" attribute { name: "keys_int64s" type: INTS ints: 5 ints: 8 ints: 9 ints: 11 ints: 12 ints: 14 ints: 17 ints: 18 ints: 20 ints: 21 ints: 25 ints: 27 ints: 28 ints: 30 ints: 32 ints: 33 ints: 37 ints: 38 ints: 39 ints: 41 ints: 43 ints: 44 ints: 46 ints: 50 ints: 52 ints: 53 ints: 54 ints: 58 ints: 59 ints: 61 ints: 62 ints: 65 ints: 66 ints: 68 ints: 69 ints: 71 ints: 72 } attribute { name: "values_floats" type: FLOATS floats: 1 floats: 1 floats: 1 floats: 1 floats: 1 floats: 1 floats: 1 floats: 4 floats: 3 floats: 1 floats: 1 floats: 1 floats: 2 floats: 1 floats: 3 floats: 2 floats: 1 floats: 1 floats: 1 floats: 1 floats: 3 floats: 1 floats: 1 floats: 1 floats: 1 floats: 1 floats: 1 floats: 18 floats: 5 floats: 1 floats: 2 floats: 2 floats: 8 floats: 9 floats: 15 floats: 1 floats: 1 } } node { input: "path_length0_output0" output: "path_length0_Y0" name: "path_length0_LabelEncoder" op_type: "LabelEncoder" domain: "ai.onnx.ml" attribute { name: "keys_int64s" type: INTS ints: 5 ints: 8 ints: 9 ints: 11 ints: 12 ints: 14 ints: 17 ints: 18 ints: 20 ints: 21 ints: 25 ints: 27 ints: 28 ints: 30 ints: 32 ints: 33 ints: 37 ints: 38 ints: 39 ints: 41 ints: 43 ints: 44 ints: 46 ints: 50 ints: 52 ints: 53 ints: 54 ints: 58 ints: 59 ints: 61 ints: 62 ints: 65 ints: 66 ints: 68 ints: 69 ints: 71 ints: 72 } attribute { name: "values_floats" type: FLOATS floats: 6 floats: 8 floats: 8 floats: 8 floats: 8 floats: 6 floats: 8 floats: 8 floats: 8 floats: 8 floats: 7 floats: 8 floats: 8 floats: 7 floats: 8 floats: 8 floats: 8 floats: 8 floats: 7 floats: 7 floats: 8 floats: 8 floats: 4 floats: 7 floats: 8 floats: 8 floats: 6 floats: 8 floats: 8 floats: 8 floats: 8 floats: 8 floats: 8 floats: 8 floats: 8 floats: 3 floats: 3 } } node { input: "node_sample1_output02" output: "node_sample1_Y02" name: "node_sample1_LabelEncoder" op_type: "LabelEncoder" domain: "ai.onnx.ml" attribute { name: "keys_int64s" type: INTS ints: 2 ints: 5 ints: 9 ints: 10 ints: 12 ints: 13 ints: 15 ints: 17 ints: 18 ints: 22 ints: 23 ints: 26 ints: 27 ints: 29 ints: 30 ints: 32 ints: 34 ints: 36 ints: 37 ints: 39 ints: 45 ints: 46 ints: 48 ints: 49 ints: 52 ints: 53 ints: 55 ints: 56 ints: 60 ints: 61 ints: 62 ints: 65 ints: 66 ints: 68 ints: 69 ints: 72 ints: 73 ints: 77 ints: 78 ints: 79 ints: 81 ints: 82 } attribute { name: "values_floats" type: FLOATS floats: 1 floats: 1 floats: 1 floats: 2 floats: 2 floats: 1 floats: 1 floats: 1 floats: 3 floats: 1 floats: 1 floats: 2 floats: 3 floats: 1 floats: 4 floats: 1 floats: 1 floats: 1 floats: 3 floats: 1 floats: 2 floats: 3 floats: 2 floats: 3 floats: 12 floats: 4 floats: 5 floats: 3 floats: 6 floats: 15 floats: 1 floats: 1 floats: 1 floats: 1 floats: 2 floats: 1 floats: 1 floats: 1 floats: 1 floats: 1 floats: 1 floats: 1 } } node { input: "node_sample2_output02" output: "node_sample2_Y02" name: "node_sample2_LabelEncoder" op_type: "LabelEncoder" domain: "ai.onnx.ml" attribute { name: "keys_int64s" type: INTS ints: 7 ints: 8 ints: 10 ints: 11 ints: 14 ints: 15 ints: 17 ints: 18 ints: 22 ints: 23 ints: 25 ints: 26 ints: 29 ints: 30 ints: 31 ints: 36 ints: 37 ints: 38 ints: 39 ints: 40 ints: 43 ints: 44 ints: 47 ints: 48 ints: 50 ints: 53 ints: 54 ints: 56 ints: 57 ints: 62 ints: 63 ints: 65 ints: 68 ints: 69 ints: 71 ints: 72 ints: 74 ints: 76 ints: 77 ints: 79 ints: 80 } attribute { name: "values_floats" type: FLOATS floats: 3 floats: 5 floats: 1 floats: 1 floats: 1 floats: 1 floats: 16 floats: 4 floats: 4 floats: 14 floats: 2 floats: 1 floats: 1 floats: 1 floats: 1 floats: 2 floats: 1 floats: 1 floats: 1 floats: 1 floats: 1 floats: 1 floats: 1 floats: 1 floats: 1 floats: 3 floats: 2 floats: 1 floats: 1 floats: 1 floats: 1 floats: 1 floats: 1 floats: 5 floats: 7 floats: 5 floats: 1 floats: 1 floats: 1 floats: 1 floats: 1 } } node { input: "path_length1_output0" output: "path_length1_Y0" name: "path_length1_LabelEncoder" op_type: "LabelEncoder" domain: "ai.onnx.ml" attribute { name: "keys_int64s" type: INTS ints: 2 ints: 5 ints: 9 ints: 10 ints: 12 ints: 13 ints: 15 ints: 17 ints: 18 ints: 22 ints: 23 ints: 26 ints: 27 ints: 29 ints: 30 ints: 32 ints: 34 ints: 36 ints: 37 ints: 39 ints: 45 ints: 46 ints: 48 ints: 49 ints: 52 ints: 53 ints: 55 ints: 56 ints: 60 ints: 61 ints: 62 ints: 65 ints: 66 ints: 68 ints: 69 ints: 72 ints: 73 ints: 77 ints: 78 ints: 79 ints: 81 ints: 82 } attribute { name: "values_floats" type: FLOATS floats: 3 floats: 5 floats: 8 floats: 8 floats: 8 floats: 8 floats: 7 floats: 8 floats: 8 floats: 7 floats: 7 floats: 8 floats: 8 floats: 8 floats: 8 floats: 6 floats: 7 floats: 8 floats: 8 floats: 3 floats: 8 floats: 8 floats: 8 floats: 8 floats: 8 floats: 8 floats: 8 floats: 8 floats: 8 floats: 8 floats: 7 floats: 8 floats: 8 floats: 8 floats: 8 floats: 6 floats: 6 floats: 8 floats: 8 floats: 7 floats: 7 floats: 7 } } node { input: "path_length2_output0" output: "path_length2_Y0" name: "path_length2_LabelEncoder" op_type: "LabelEncoder" domain: "ai.onnx.ml" attribute { name: "keys_int64s" type: INTS ints: 7 ints: 8 ints: 10 ints: 11 ints: 14 ints: 15 ints: 17 ints: 18 ints: 22 ints: 23 ints: 25 ints: 26 ints: 29 ints: 30 ints: 31 ints: 36 ints: 37 ints: 38 ints: 39 ints: 40 ints: 43 ints: 44 ints: 47 ints: 48 ints: 50 ints: 53 ints: 54 ints: 56 ints: 57 ints: 62 ints: 63 ints: 65 ints: 68 ints: 69 ints: 71 ints: 72 ints: 74 ints: 76 ints: 77 ints: 79 ints: 80 } attribute { name: "values_floats" type: FLOATS floats: 8 floats: 8 floats: 8 floats: 8 floats: 8 floats: 8 floats: 8 floats: 8 floats: 8 floats: 8 floats: 8 floats: 8 floats: 8 floats: 8 floats: 7 floats: 8 floats: 8 floats: 7 floats: 6 floats: 5 floats: 5 floats: 5 floats: 6 floats: 6 floats: 6 floats: 8 floats: 8 floats: 8 floats: 8 floats: 6 floats: 6 floats: 6 floats: 8 floats: 8 floats: 8 floats: 8 floats: 5 floats: 6 floats: 6 floats: 4 floats: 4 } } node { input: "node_sample0_Y02" input: "path_length0_Reshapecst" output: "node_sample0_reshaped0" name: "node_sample0_Reshape" op_type: "Reshape" domain: "" attribute { name: "allowzero" type: INT i: 0 } } node { input: "path_length0_Y0" input: "path_length0_Reshapecst" output: "path_length0_reshaped0" name: "path_length0_Reshape" op_type: "Reshape" domain: "" attribute { name: "allowzero" type: INT i: 0 } } node { input: "node_sample0_reshaped0" input: "dec_Powcst" output: "eq2_0_C0" name: "eq2_0_Equal" op_type: "Equal" domain: "" } node { input: "node_sample0_reshaped0" input: "dec_Powcst" output: "plus2_0_C0" name: "plus2_0_Greater" op_type: "Greater" domain: "" } node { input: "node_sample1_Y02" input: "path_length0_Reshapecst" output: "node_sample1_reshaped0" name: "node_sample1_Reshape" op_type: "Reshape" domain: "" attribute { name: "allowzero" type: INT i: 0 } } node { input: "node_sample2_Y02" input: "path_length0_Reshapecst" output: "node_sample2_reshaped0" name: "node_sample2_Reshape" op_type: "Reshape" domain: "" attribute { name: "allowzero" type: INT i: 0 } } node { input: "path_length1_Y0" input: "path_length0_Reshapecst" output: "path_length1_reshaped0" name: "path_length1_Reshape" op_type: "Reshape" domain: "" attribute { name: "allowzero" type: INT i: 0 } } node { input: "path_length2_Y0" input: "path_length0_Reshapecst" output: "path_length2_reshaped0" name: "path_length2_Reshape" op_type: "Reshape" domain: "" attribute { name: "allowzero" type: INT i: 0 } } node { input: "eq2_0_C0" output: "eq2_0_output0" name: "eq2_0_Cast" op_type: "Cast" domain: "" attribute { name: "to" type: INT i: 1 } } node { input: "plus2_0_C0" output: "plus2_0_output0" name: "plus2_0_Cast" op_type: "Cast" domain: "" attribute { name: "to" type: INT i: 1 } } node { input: "node_sample1_reshaped0" input: "dec_Powcst" output: "eq2_1_C0" name: "eq2_1_Equal" op_type: "Equal" domain: "" } node { input: "node_sample2_reshaped0" input: "dec_Powcst" output: "eq2_2_C0" name: "eq2_2_Equal" op_type: "Equal" domain: "" } node { input: "node_sample1_reshaped0" input: "dec_Powcst" output: "plus2_1_C0" name: "plus2_1_Greater" op_type: "Greater" domain: "" } node { input: "node_sample2_reshaped0" input: "dec_Powcst" output: "plus2_2_C0" name: "plus2_2_Greater" op_type: "Greater" domain: "" } node { input: "eq2_1_C0" output: "eq2_1_output0" name: "eq2_1_Cast" op_type: "Cast" domain: "" attribute { name: "to" type: INT i: 1 } } node { input: "eq2_2_C0" output: "eq2_2_output0" name: "eq2_2_Cast" op_type: "Cast" domain: "" attribute { name: "to" type: INT i: 1 } } node { input: "plus2_1_C0" output: "plus2_1_output0" name: "plus2_1_Cast" op_type: "Cast" domain: "" attribute { name: "to" type: INT i: 1 } } node { input: "plus2_2_C0" output: "plus2_2_output0" name: "plus2_2_Cast" op_type: "Cast" domain: "" attribute { name: "to" type: INT i: 1 } } node { input: "plus2_0_output0" input: "node_sample0_reshaped0" output: "eqp2ps0_C0" name: "eqp2ps0_Mul" op_type: "Mul" domain: "" } node { input: "eqp2ps0_C0" input: "eqp2p_m1_0_Addcst" output: "eqp2p_m1_0_C0" name: "eqp2p_m1_0_Add" op_type: "Add" domain: "" } node { input: "eqp2ps0_C0" input: "eqp2p_m1_0_Maxcst" output: "eqp_ns0_max0" name: "eqp_ns0_Max" op_type: "Max" domain: "" } node { input: "plus2_1_output0" input: "node_sample1_reshaped0" output: "eqp2ps1_C0" name: "eqp2ps1_Mul" op_type: "Mul" domain: "" } node { input: "plus2_2_output0" input: "node_sample2_reshaped0" output: "eqp2ps2_C0" name: "eqp2ps2_Mul" op_type: "Mul" domain: "" } node { input: "eqp2ps1_C0" input: "eqp2p_m1_0_Addcst" output: "eqp2p_m1_1_C0" name: "eqp2p_m1_1_Add" op_type: "Add" domain: "" } node { input: "eqp2ps2_C0" input: "eqp2p_m1_0_Addcst" output: "eqp2p_m1_2_C0" name: "eqp2p_m1_2_Add" op_type: "Add" domain: "" } node { input: "eqp2p_m1_0_C0" input: "eqp2p_m1_0_Maxcst" output: "eqp2p_m1_0_max0" name: "eqp2p_m1_0_Max" op_type: "Max" domain: "" } node { input: "eqp2p_m1_0_C0" input: "eqp2p_m1_0_Maxcst1" output: "eqp2p_m1_0_max02" name: "eqp2p_m1_0_Max1" op_type: "Max" domain: "" } node { input: "eqp2ps1_C0" input: "eqp2p_m1_0_Maxcst" output: "eqp_ns1_max0" name: "eqp_ns1_Max" op_type: "Max" domain: "" } node { input: "eqp2ps2_C0" input: "eqp2p_m1_0_Maxcst" output: "eqp_ns2_max0" name: "eqp_ns2_Max" op_type: "Max" domain: "" } node { input: "eqp2p_m1_0_max02" input: "eqp_ns0_max0" output: "eqp_ns0_C01" name: "eqp_ns0_Div" op_type: "Div" domain: "" } node { input: "eqp2p_m1_0_max0" output: "eqp_log0_output0" name: "eqp_log0_Log" op_type: "Log" domain: "" } node { input: "eqp2p_m1_1_C0" input: "eqp2p_m1_0_Maxcst" output: "eqp2p_m1_1_max0" name: "eqp2p_m1_1_Max" op_type: "Max" domain: "" } node { input: "eqp2p_m1_1_C0" input: "eqp2p_m1_0_Maxcst1" output: "eqp2p_m1_1_max02" name: "eqp2p_m1_1_Max1" op_type: "Max" domain: "" } node { input: "eqp2p_m1_2_C0" input: "eqp2p_m1_0_Maxcst" output: "eqp2p_m1_2_max0" name: "eqp2p_m1_2_Max" op_type: "Max" domain: "" } node { input: "eqp2p_m1_2_C0" input: "eqp2p_m1_0_Maxcst1" output: "eqp2p_m1_2_max02" name: "eqp2p_m1_2_Max1" op_type: "Max" domain: "" } node { input: "eqp_log0_output0" input: "eqp_log0_Addcst" output: "eqp_log0_C01" name: "eqp_log0_Add" op_type: "Add" domain: "" } node { input: "eqp2p_m1_1_max02" input: "eqp_ns1_max0" output: "eqp_ns1_C01" name: "eqp_ns1_Div" op_type: "Div" domain: "" } node { input: "eqp2p_m1_2_max02" input: "eqp_ns2_max0" output: "eqp_ns2_C01" name: "eqp_ns2_Div" op_type: "Div" domain: "" } node { input: "eqp2p_m1_1_max0" output: "eqp_log1_output0" name: "eqp_log1_Log" op_type: "Log" domain: "" } node { input: "eqp2p_m1_2_max0" output: "eqp_log2_output0" name: "eqp_log2_Log" op_type: "Log" domain: "" } node { input: "eqp_ns0_C01" input: "eqp_ns0_Mulcst" output: "eqp_ns0_C0" name: "eqp_ns0_Mul" op_type: "Mul" domain: "" } node { input: "eqp_log1_output0" input: "eqp_log0_Addcst" output: "eqp_log1_C01" name: "eqp_log1_Add" op_type: "Add" domain: "" } node { input: "eqp_log2_output0" input: "eqp_log0_Addcst" output: "eqp_log2_C01" name: "eqp_log2_Add" op_type: "Add" domain: "" } node { input: "eqp_log0_C01" input: "dec_Powcst" output: "eqp_log0_C0" name: "eqp_log0_Mul" op_type: "Mul" domain: "" } node { input: "eqp_ns1_C01" input: "eqp_ns0_Mulcst" output: "eqp_ns1_C0" name: "eqp_ns1_Mul" op_type: "Mul" domain: "" } node { input: "eqp_ns2_C01" input: "eqp_ns0_Mulcst" output: "eqp_ns2_C0" name: "eqp_ns2_Mul" op_type: "Mul" domain: "" } node { input: "eqp_log0_C0" input: "eqp_ns0_C0" output: "avlog0_C01" name: "avlog0_Add" op_type: "Add" domain: "" } node { input: "eqp_log1_C01" input: "dec_Powcst" output: "eqp_log1_C0" name: "eqp_log1_Mul" op_type: "Mul" domain: "" } node { input: "eqp_log2_C01" input: "dec_Powcst" output: "eqp_log2_C0" name: "eqp_log2_Mul" op_type: "Mul" domain: "" } node { input: "eqp_log1_C0" input: "eqp_ns1_C0" output: "avlog1_C01" name: "avlog1_Add" op_type: "Add" domain: "" } node { input: "eqp_log2_C0" input: "eqp_ns2_C0" output: "avlog2_C01" name: "avlog2_Add" op_type: "Add" domain: "" } node { input: "avlog0_C01" input: "plus2_0_output0" output: "avlog0_C0" name: "avlog0_Mul" op_type: "Mul" domain: "" } node { input: "eq2_0_output0" input: "avlog0_C0" output: "avpl0_C0" name: "avpl0_Add" op_type: "Add" domain: "" } node { input: "avlog1_C01" input: "plus2_1_output0" output: "avlog1_C0" name: "avlog1_Mul" op_type: "Mul" domain: "" } node { input: "avlog2_C01" input: "plus2_2_output0" output: "avlog2_C0" name: "avlog2_Mul" op_type: "Mul" domain: "" } node { input: "eq2_1_output0" input: "avlog1_C0" output: "avpl1_C0" name: "avpl1_Add" op_type: "Add" domain: "" } node { input: "eq2_2_output0" input: "avlog2_C0" output: "avpl2_C0" name: "avpl2_Add" op_type: "Add" domain: "" } node { input: "path_length0_reshaped0" input: "avpl0_C0" output: "depth0_C01" name: "depth0_Add" op_type: "Add" domain: "" } node { input: "depth0_C01" input: "eqp2p_m1_0_Addcst" output: "depth0_C0" name: "depth0_Add1" op_type: "Add" domain: "" } node { input: "path_length1_reshaped0" input: "avpl1_C0" output: "depth1_C01" name: "depth1_Add" op_type: "Add" domain: "" } node { input: "path_length2_reshaped0" input: "avpl2_C0" output: "depth2_C01" name: "depth2_Add" op_type: "Add" domain: "" } node { input: "depth1_C01" input: "eqp2p_m1_0_Addcst" output: "depth1_C0" name: "depth1_Add1" op_type: "Add" domain: "" } node { input: "depth2_C01" input: "eqp2p_m1_0_Addcst" output: "depth2_C0" name: "depth2_Add1" op_type: "Add" domain: "" } node { input: "depth0_C0" input: "depth1_C0" input: "depth2_C0" output: "dec_sum0" name: "dec_Sum" op_type: "Sum" domain: "" } node { input: "dec_sum0" input: "dec_Divcst" output: "dec_C0" name: "dec_Div" op_type: "Div" domain: "" } node { input: "dec_C0" output: "dec_Y01" name: "dec_Neg" op_type: "Neg" domain: "" } node { input: "dec_Powcst" input: "dec_Y01" output: "dec_Z0" name: "dec_Pow" op_type: "Pow" domain: "" } node { input: "dec_Z0" output: "dec_Y0" name: "dec_Neg1" op_type: "Neg" domain: "" } node { input: "dec_Y0" input: "dec_Addcst" output: "scores" name: "dec_Add" op_type: "Add" domain: "" } node { input: "scores" input: "eqp2p_m1_0_Maxcst1" output: "predict_C01" name: "predict_Less" op_type: "Less" domain: "" } node { input: "predict_C01" output: "predict_output0" name: "predict_Cast" op_type: "Cast" domain: "" attribute { name: "to" type: INT i: 7 } } node { input: "predict_output0" input: "predict_Mulcst" output: "predict_C0" name: "predict_Mul" op_type: "Mul" domain: "" } node { input: "predict_C0" input: "predict_Addcst" output: "label" name: "predict_Add" op_type: "Add" domain: "" } name: "ONNX(IsolationForest)" initializer { dims: 1 data_type: 1 float_data: 2 name: "dec_Powcst" } initializer { dims: 2 data_type: 7 int64_data: 0 int64_data: 1 name: "node_sample0_Gathercst" } initializer { dims: 2 data_type: 7 int64_data: -1 int64_data: 1 name: "path_length0_Reshapecst" } initializer { dims: 1 data_type: 1 float_data: -1 name: "eqp2p_m1_0_Addcst" } initializer { dims: 1 data_type: 1 float_data: 1 name: "eqp2p_m1_0_Maxcst" } initializer { dims: 1 data_type: 1 float_data: 0.577215672 name: "eqp_log0_Addcst" } initializer { dims: 1 data_type: 1 float_data: 0 name: "eqp2p_m1_0_Maxcst1" } initializer { dims: 1 data_type: 1 float_data: -2 name: "eqp_ns0_Mulcst" } initializer { dims: 1 dims: 1 data_type: 1 float_data: 25.0940132 name: "dec_Divcst" } initializer { dims: 1 data_type: 1 float_data: 0.5 name: "dec_Addcst" } initializer { dims: 1 data_type: 7 int64_data: -2 name: "predict_Mulcst" } initializer { dims: 1 data_type: 7 int64_data: 1 name: "predict_Addcst" } input { name: "X" type { tensor_type { elem_type: 1 shape { dim { } dim { dim_value: 2 } } } } } output { name: "label" type { tensor_type { elem_type: 7 shape { dim { } dim { dim_value: 1 } } } } } output { name: "scores" type { tensor_type { elem_type: 1 shape { dim { } dim { dim_value: 1 } } } } } } .. GENERATED FROM PYTHON SOURCE LINES 65-67 The last line shows the opsets. Let's extract it. .. GENERATED FROM PYTHON SOURCE LINES 67-72 .. code-block:: Python domains = onx.opset_import for dom in domains: print("domain: %r, version: %r" % (dom.domain, dom.version)) .. rst-class:: sphx-glr-script-out .. code-block:: none domain: 'ai.onnx.ml', version: 2 domain: '', version: 15 .. GENERATED FROM PYTHON SOURCE LINES 73-75 There are two opsets, one for standard operators, the other for machine learning operators. .. GENERATED FROM PYTHON SOURCE LINES 77-82 ONNX and opset ++++++++++++++ The converter can convert a model to an older opset than the default one, from 1 to the last available one. .. GENERATED FROM PYTHON SOURCE LINES 82-103 .. code-block:: Python def get_domain_opset(onx): domains = onx.opset_import res = [{"domain": dom.domain, "version": dom.version} for dom in domains] return {d["domain"]: d["version"] for d in res} for opset in range(6, onnx_opset_version() + 1): try: onx = to_onnx( model, X[:1].astype(numpy.float32), target_opset={"": opset, "ai.onnx.ml": 2}, ) except RuntimeError as e: print("target: %r error: %r" % (opset, e)) continue nodes = len(onx.graph.node) print("target: %r --> %s %d" % (opset, get_domain_opset(onx), nodes)) .. rst-class:: sphx-glr-script-out .. code-block:: none target: 6 --> {'ai.onnx.ml': 2, '': 6} 91 target: 7 --> {'': 7, 'ai.onnx.ml': 2} 91 target: 8 --> {'': 8, 'ai.onnx.ml': 2} 91 target: 9 --> {'ai.onnx.ml': 2, '': 9} 91 target: 10 --> {'ai.onnx.ml': 2, '': 10} 91 target: 11 --> {'ai.onnx.ml': 2, '': 11} 91 target: 12 --> {'': 12, 'ai.onnx.ml': 2} 91 target: 13 --> {'': 13, 'ai.onnx.ml': 2} 91 target: 14 --> {'': 14, 'ai.onnx.ml': 2} 91 target: 15 --> {'ai.onnx.ml': 2, '': 15} 91 target: 16 --> {'ai.onnx.ml': 2, '': 16} 91 target: 17 --> {'ai.onnx.ml': 2, '': 17} 91 target: 18 --> {'ai.onnx.ml': 2, '': 18} 91 target: 19 --> {'ai.onnx.ml': 2, '': 19} 91 target: 20 --> {'': 20, 'ai.onnx.ml': 2} 91 target: 21 --> {'ai.onnx.ml': 2, '': 21} 91 /home/xadupre/github/sklearn-onnx/skl2onnx/common/_topology.py:1516: UserWarning: Parameter target_opset 22 > 21 is higher than the the latest tested version. warnings.warn( target: 22 error: RuntimeError("The model is using version 22 of domain '' not supported yet by this library. You need to specify target_opset={'': 21}.") .. GENERATED FROM PYTHON SOURCE LINES 104-115 It shows that the model cannot be converted for opset below 5. Operator `Reshape `_ changed in opset 5: a parameter became an input. The converter does not support *opset < 5* because runtimes usually do not. Other opsets ++++++++++++ The previous example changed the opset of the main domain ``''`` but the other opset domain can be changed as well. .. GENERATED FROM PYTHON SOURCE LINES 115-127 .. code-block:: Python for opset in range(9, onnx_opset_version() + 1): for opset_ml in range(1, 4): tops = {"": opset, "ai.onnx.ml": opset_ml} try: print("try target_opset:", tops) onx = to_onnx(model, X[:1].astype(numpy.float32), target_opset=tops) except RuntimeError as e: print("target: %r error: %r" % (opset, e)) continue nodes = len(onx.graph.node) print("target: %r --> %s %d" % (opset, get_domain_opset(onx), nodes)) .. rst-class:: sphx-glr-script-out .. code-block:: none try target_opset: {'': 9, 'ai.onnx.ml': 1} target: 9 error: RuntimeError("This converter requires at least opset 2 for domain 'ai.onnx.ml'.") try target_opset: {'': 9, 'ai.onnx.ml': 2} target: 9 --> {'ai.onnx.ml': 2, '': 9} 91 try target_opset: {'': 9, 'ai.onnx.ml': 3} target: 9 --> {'ai.onnx.ml': 3, '': 9} 91 try target_opset: {'': 10, 'ai.onnx.ml': 1} target: 10 error: RuntimeError("This converter requires at least opset 2 for domain 'ai.onnx.ml'.") try target_opset: {'': 10, 'ai.onnx.ml': 2} target: 10 --> {'ai.onnx.ml': 2, '': 10} 91 try target_opset: {'': 10, 'ai.onnx.ml': 3} target: 10 --> {'ai.onnx.ml': 3, '': 10} 91 try target_opset: {'': 11, 'ai.onnx.ml': 1} target: 11 error: RuntimeError("This converter requires at least opset 2 for domain 'ai.onnx.ml'.") try target_opset: {'': 11, 'ai.onnx.ml': 2} target: 11 --> {'ai.onnx.ml': 2, '': 11} 91 try target_opset: {'': 11, 'ai.onnx.ml': 3} target: 11 --> {'ai.onnx.ml': 3, '': 11} 91 try target_opset: {'': 12, 'ai.onnx.ml': 1} target: 12 error: RuntimeError("This converter requires at least opset 2 for domain 'ai.onnx.ml'.") try target_opset: {'': 12, 'ai.onnx.ml': 2} target: 12 --> {'': 12, 'ai.onnx.ml': 2} 91 try target_opset: {'': 12, 'ai.onnx.ml': 3} target: 12 --> {'': 12, 'ai.onnx.ml': 3} 91 try target_opset: {'': 13, 'ai.onnx.ml': 1} target: 13 error: RuntimeError("This converter requires at least opset 2 for domain 'ai.onnx.ml'.") try target_opset: {'': 13, 'ai.onnx.ml': 2} target: 13 --> {'': 13, 'ai.onnx.ml': 2} 91 try target_opset: {'': 13, 'ai.onnx.ml': 3} target: 13 --> {'': 13, 'ai.onnx.ml': 3} 91 try target_opset: {'': 14, 'ai.onnx.ml': 1} target: 14 error: RuntimeError("This converter requires at least opset 2 for domain 'ai.onnx.ml'.") try target_opset: {'': 14, 'ai.onnx.ml': 2} target: 14 --> {'': 14, 'ai.onnx.ml': 2} 91 try target_opset: {'': 14, 'ai.onnx.ml': 3} target: 14 --> {'': 14, 'ai.onnx.ml': 3} 91 try target_opset: {'': 15, 'ai.onnx.ml': 1} target: 15 error: RuntimeError("This converter requires at least opset 2 for domain 'ai.onnx.ml'.") try target_opset: {'': 15, 'ai.onnx.ml': 2} target: 15 --> {'ai.onnx.ml': 2, '': 15} 91 try target_opset: {'': 15, 'ai.onnx.ml': 3} target: 15 --> {'': 15, 'ai.onnx.ml': 3} 91 try target_opset: {'': 16, 'ai.onnx.ml': 1} target: 16 error: RuntimeError("This converter requires at least opset 2 for domain 'ai.onnx.ml'.") try target_opset: {'': 16, 'ai.onnx.ml': 2} target: 16 --> {'ai.onnx.ml': 2, '': 16} 91 try target_opset: {'': 16, 'ai.onnx.ml': 3} target: 16 --> {'': 16, 'ai.onnx.ml': 3} 91 try target_opset: {'': 17, 'ai.onnx.ml': 1} target: 17 error: RuntimeError("This converter requires at least opset 2 for domain 'ai.onnx.ml'.") try target_opset: {'': 17, 'ai.onnx.ml': 2} target: 17 --> {'ai.onnx.ml': 2, '': 17} 91 try target_opset: {'': 17, 'ai.onnx.ml': 3} target: 17 --> {'': 17, 'ai.onnx.ml': 3} 91 try target_opset: {'': 18, 'ai.onnx.ml': 1} target: 18 error: RuntimeError("This converter requires at least opset 2 for domain 'ai.onnx.ml'.") try target_opset: {'': 18, 'ai.onnx.ml': 2} target: 18 --> {'ai.onnx.ml': 2, '': 18} 91 try target_opset: {'': 18, 'ai.onnx.ml': 3} target: 18 --> {'': 18, 'ai.onnx.ml': 3} 91 try target_opset: {'': 19, 'ai.onnx.ml': 1} target: 19 error: RuntimeError("This converter requires at least opset 2 for domain 'ai.onnx.ml'.") try target_opset: {'': 19, 'ai.onnx.ml': 2} target: 19 --> {'ai.onnx.ml': 2, '': 19} 91 try target_opset: {'': 19, 'ai.onnx.ml': 3} target: 19 --> {'': 19, 'ai.onnx.ml': 3} 91 try target_opset: {'': 20, 'ai.onnx.ml': 1} target: 20 error: RuntimeError("This converter requires at least opset 2 for domain 'ai.onnx.ml'.") try target_opset: {'': 20, 'ai.onnx.ml': 2} target: 20 --> {'': 20, 'ai.onnx.ml': 2} 91 try target_opset: {'': 20, 'ai.onnx.ml': 3} target: 20 --> {'': 20, 'ai.onnx.ml': 3} 91 try target_opset: {'': 21, 'ai.onnx.ml': 1} target: 21 error: RuntimeError("This converter requires at least opset 2 for domain 'ai.onnx.ml'.") try target_opset: {'': 21, 'ai.onnx.ml': 2} target: 21 --> {'ai.onnx.ml': 2, '': 21} 91 try target_opset: {'': 21, 'ai.onnx.ml': 3} target: 21 --> {'': 21, 'ai.onnx.ml': 3} 91 try target_opset: {'': 22, 'ai.onnx.ml': 1} /home/xadupre/github/sklearn-onnx/skl2onnx/common/_topology.py:1516: UserWarning: Parameter target_opset 22 > 21 is higher than the the latest tested version. warnings.warn( target: 22 error: RuntimeError("This converter requires at least opset 2 for domain 'ai.onnx.ml'.") try target_opset: {'': 22, 'ai.onnx.ml': 2} target: 22 error: RuntimeError("The model is using version 22 of domain '' not supported yet by this library. You need to specify target_opset={'': 21}.") try target_opset: {'': 22, 'ai.onnx.ml': 3} /home/xadupre/github/sklearn-onnx/skl2onnx/common/_topology.py:1516: UserWarning: Parameter target_opset 22 > 21 is higher than the the latest tested version. warnings.warn( target: 22 error: RuntimeError("The model is using version 22 of domain '' not supported yet by this library. You need to specify target_opset={'': 21}.") .. rst-class:: sphx-glr-timing **Total running time of the script:** (0 minutes 1.416 seconds) .. _sphx_glr_download_auto_tutorial_plot_cbegin_opset.py: .. only:: html .. container:: sphx-glr-footer sphx-glr-footer-example .. container:: sphx-glr-download sphx-glr-download-jupyter :download:`Download Jupyter notebook: plot_cbegin_opset.ipynb ` .. container:: sphx-glr-download sphx-glr-download-python :download:`Download Python source code: plot_cbegin_opset.py ` .. only:: html .. rst-class:: sphx-glr-signature `Gallery generated by Sphinx-Gallery `_