RapidMiner联合集合(数据表)
RapidMiner联合集合(数据表)
提问于 2014-10-06 04:22:36
我基本上有一个Collection (如果您不知道，可以把它想象成一个对象数组)，其中包含数量可变的数据表，每个表至少有一个具有相同id的"id“列，以及每个表中具有不同名称的另一列。
例如，该集合将包含N个数据表，其格式为：
Table 1
id col1
1 0.5
2 0.7
Table 2
id col2
1 0.1
2 0.0
........
........
........
Table N
id colN
1 0.0
2 0.8Result
id col1 col2 ... colN
1 0.5 0.1 ... 0.0
2 0.7 0.0 ... 0.8请注意，每个表都有相同数量的记录和分配给它们的相同id (+表中的列名，除了id之外，都是唯一的-换言之，数据不能比这更理想)。
回答 1
Stack Overflow用户
发布于 2014-10-07 02:02:35
这是一个相当高级的过程，涉及Remember、Recall、Branch、Join、Select和Loop Collection。下面是一个精简的例子。
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<process version="6.1.008">
<context>
<input/>
<output/>
<macros/>
</context>
<operator activated="true" class="process" compatibility="6.1.000-SNAPSHOT" expanded="true" name="Process">
<process expanded="true">
<operator activated="true" class="subprocess" compatibility="6.1.000-SNAPSHOT" expanded="true" height="76" name="Subprocess" width="90" x="112" y="30">
<process expanded="true">
<operator activated="true" class="generate_data_user_specification" compatibility="6.1.000-SNAPSHOT" expanded="true" height="60" name="Generate Data by User Specification" width="90" x="45" y="30">
<list key="attribute_values">
<parameter key="id" value="1"/>
<parameter key="col1" value="48"/>
</list>
<list key="set_additional_roles">
<parameter key="id" value="id"/>
</list>
</operator>
<operator activated="true" class="generate_data_user_specification" compatibility="6.1.000-SNAPSHOT" expanded="true" height="60" name="Generate Data by User Specification (2)" width="90" x="45" y="120">
<list key="attribute_values">
<parameter key="id" value="2"/>
<parameter key="col1" value="4"/>
</list>
<list key="set_additional_roles">
<parameter key="id" value="id"/>
</list>
</operator>
<operator activated="true" class="append" compatibility="6.1.000-SNAPSHOT" expanded="true" height="94" name="Append" width="90" x="179" y="30"/>
<operator activated="true" class="generate_data_user_specification" compatibility="6.1.000-SNAPSHOT" expanded="true" height="60" name="Generate Data by User Specification (3)" width="90" x="45" y="210">
<list key="attribute_values">
<parameter key="id" value="1"/>
<parameter key="col2" value="9"/>
</list>
<list key="set_additional_roles">
<parameter key="id" value="id"/>
</list>
</operator>
<operator activated="true" class="generate_data_user_specification" compatibility="6.1.000-SNAPSHOT" expanded="true" height="60" name="Generate Data by User Specification (4)" width="90" x="45" y="300">
<list key="attribute_values">
<parameter key="id" value="2"/>
<parameter key="col2" value="7"/>
</list>
<list key="set_additional_roles">
<parameter key="id" value="id"/>
</list>
</operator>
<operator activated="true" class="append" compatibility="6.1.000-SNAPSHOT" expanded="true" height="94" name="Append (2)" width="90" x="179" y="210"/>
<operator activated="true" class="generate_data_user_specification" compatibility="6.1.000-SNAPSHOT" expanded="true" height="60" name="Generate Data by User Specification (5)" width="90" x="45" y="390">
<list key="attribute_values">
<parameter key="id" value="1"/>
<parameter key="col3" value="88"/>
</list>
<list key="set_additional_roles">
<parameter key="id" value="id"/>
</list>
</operator>
<operator activated="true" class="generate_data_user_specification" compatibility="6.1.000-SNAPSHOT" expanded="true" height="60" name="Generate Data by User Specification (6)" width="90" x="45" y="480">
<list key="attribute_values">
<parameter key="id" value="2"/>
<parameter key="col3" value="78"/>
</list>
<list key="set_additional_roles">
<parameter key="id" value="id"/>
</list>
</operator>
<operator activated="true" class="append" compatibility="6.1.000-SNAPSHOT" expanded="true" height="94" name="Append (3)" width="90" x="179" y="390"/>
<operator activated="true" class="collect" compatibility="6.1.000-SNAPSHOT" expanded="true" height="112" name="Collect" width="90" x="380" y="210"/>
<connect from_op="Generate Data by User Specification" from_port="output" to_op="Append" to_port="example set 1"/>
<connect from_op="Generate Data by User Specification (2)" from_port="output" to_op="Append" to_port="example set 2"/>
<connect from_op="Append" from_port="merged set" to_op="Collect" to_port="input 1"/>
<connect from_op="Generate Data by User Specification (3)" from_port="output" to_op="Append (2)" to_port="example set 1"/>
<connect from_op="Generate Data by User Specification (4)" from_port="output" to_op="Append (2)" to_port="example set 2"/>
<connect from_op="Append (2)" from_port="merged set" to_op="Collect" to_port="input 2"/>
<connect from_op="Generate Data by User Specification (5)" from_port="output" to_op="Append (3)" to_port="example set 1"/>
<connect from_op="Generate Data by User Specification (6)" from_port="output" to_op="Append (3)" to_port="example set 2"/>
<connect from_op="Append (3)" from_port="merged set" to_op="Collect" to_port="input 3"/>
<connect from_op="Collect" from_port="collection" to_port="out 1"/>
<portSpacing port="source_in 1" spacing="0"/>
<portSpacing port="sink_out 1" spacing="0"/>
<portSpacing port="sink_out 2" spacing="0"/>
</process>
</operator>
<operator activated="true" class="multiply" compatibility="6.1.000-SNAPSHOT" expanded="true" height="94" name="Multiply (2)" width="90" x="246" y="30"/>
<operator activated="true" class="select" compatibility="6.1.000-SNAPSHOT" expanded="true" height="60" name="Select (2)" width="90" x="447" y="30"/>
<operator activated="true" class="remember" compatibility="6.1.000-SNAPSHOT" expanded="true" height="60" name="Remember" width="90" x="581" y="30">
<parameter key="name" value="1"/>
</operator>
<operator activated="true" class="loop_collection" compatibility="6.1.000-SNAPSHOT" expanded="true" height="76" name="Loop Collection" width="90" x="447" y="165">
<parameter key="set_iteration_macro" value="true"/>
<process expanded="true">
<operator activated="true" class="branch" compatibility="6.1.000-SNAPSHOT" expanded="true" height="76" name="Branch" width="90" x="112" y="120">
<parameter key="condition_type" value="expression"/>
<parameter key="condition_value" value="%{iteration}==1"/>
<process expanded="true">
<connect from_port="condition" to_port="input 1"/>
<portSpacing port="source_condition" spacing="0"/>
<portSpacing port="source_input 1" spacing="0"/>
<portSpacing port="sink_input 1" spacing="0"/>
<portSpacing port="sink_input 2" spacing="0"/>
</process>
<process expanded="true">
<operator activated="true" class="recall" compatibility="6.1.000-SNAPSHOT" expanded="true" height="60" name="Recall" width="90" x="112" y="75">
<parameter key="name" value="1"/>
</operator>
<operator activated="true" class="join" compatibility="6.1.000-SNAPSHOT" expanded="true" height="76" name="Join" width="90" x="246" y="30">
<list key="key_attributes"/>
</operator>
<operator activated="true" class="remember" compatibility="6.1.000-SNAPSHOT" expanded="true" height="60" name="Remember (2)" width="90" x="380" y="30">
<parameter key="name" value="1"/>
</operator>
<connect from_port="condition" to_op="Join" to_port="left"/>
<connect from_op="Recall" from_port="result" to_op="Join" to_port="right"/>
<connect from_op="Join" from_port="join" to_op="Remember (2)" to_port="store"/>
<connect from_op="Remember (2)" from_port="stored" to_port="input 1"/>
<portSpacing port="source_condition" spacing="0"/>
<portSpacing port="source_input 1" spacing="0"/>
<portSpacing port="sink_input 1" spacing="0"/>
<portSpacing port="sink_input 2" spacing="0"/>
</process>
</operator>
<connect from_port="single" to_op="Branch" to_port="condition"/>
<connect from_op="Branch" from_port="input 1" to_port="output 1"/>
<portSpacing port="source_single" spacing="0"/>
<portSpacing port="sink_output 1" spacing="0"/>
<portSpacing port="sink_output 2" spacing="0"/>
</process>
</operator>
<operator activated="true" class="recall" compatibility="6.1.000-SNAPSHOT" expanded="true" height="60" name="Recall (2)" width="90" x="581" y="165">
<parameter key="name" value="1"/>
</operator>
<connect from_op="Subprocess" from_port="out 1" to_op="Multiply (2)" to_port="input"/>
<connect from_op="Multiply (2)" from_port="output 1" to_op="Select (2)" to_port="collection"/>
<connect from_op="Multiply (2)" from_port="output 2" to_op="Loop Collection" to_port="collection"/>
<connect from_op="Select (2)" from_port="selected" to_op="Remember" to_port="store"/>
<connect from_op="Recall (2)" from_port="result" to_port="result 1"/>
<portSpacing port="source_input 1" spacing="0"/>
<portSpacing port="sink_result 1" spacing="0"/>
<portSpacing port="sink_result 2" spacing="0"/>
</process>
</operator>
</process>希望能有所帮助。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/26206840
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