discoverypipeline.py 文件源码

python
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项目:scikit-discovery 作者: MITHaystack 项目源码 文件源码
def plotPipelineInstance(self):
        '''
        Plot current instance of pipeline stages with metadata

        @return iPython display object
        '''

        #Graph setup
        g1 = gv.Digraph(format='svg')
        g1.graph_attr['rankdir'] = 'LR'
        g1.node_attr['shape'] = 'rounded'
        g1.node_attr['fontname'] = 'Arial'
        g1.node_attr['fontsize'] = '9'
        g1.node_attr['style'] = 'filled'
        g1.node_attr['margin'] = '0.1'
        g1.node_attr['height'] = '0.1'
        g1.node_attr['fillcolor'] = '#d8e9fd'
        #g1.node_attr['shape'] = 'plaintext'  #use this to remove boxes around nodes

        # Some stagecontainers directly return the metadata as string,
        # others return a list of strings for each item in the stage
        # container.
        metadata_list = []
        for s in self.stage_containers:
            first_metadata = s.getMetadata()
            if isinstance(first_metadata, str):
                metadata_list.append(first_metadata)

            else:
                for second_metadata in first_metadata:
                    metadata_list.append(second_metadata)

        nodelist = [re.sub('\:',';', metadata) for metadata in metadata_list]

        for s in nodelist:
            g1.node(s)

        g1.edges(zip(nodelist, nodelist[1:]))

        g1.render('img/plotPipelineInstance')

        #print(g1.source)
        #return display(Image('img/pipelinePlot.svg'))
        return display(SVG('img/plotPipelineInstance.svg'))
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