Error when writing data to Excel using 'Documents to data'

h_jernstrom

Hello, I am doing my first Rapidminer project and I am experiencing an issue when trying to gather my data in an Excel file. I have Excel data of Tweets that I analyze using the Aylien Analyze Sentiment extension. This is no issue, however I am not able to transfer this sentiment data to an Excel sheet. I tried the 'documents to data' operator, but it gives my the error message depicted below. The entire process and XML process is displayed below. Does anyone know why I cant get the data to Excel using the documents to data operator? Is there maybe another way to gather the sentiment data in an Excel sheet?

Process:

XML Process:

<?xml version="1.0" encoding="UTF-8"?><process version="8.2.000">
  <context>
    <input/>
    <output/>
    <macros/>
  </context>
  <operator activated="true" class="process" compatibility="8.2.000" expanded="true" name="Process">
    <process expanded="true">
      <operator activated="true" class="retrieve" compatibility="8.2.000" expanded="true" height="68" name="Retrieve AAPL Tweet test2" width="90" x="112" y="34">
        <parameter key="repository_entry" value="//Local Repository/AAPL Tweet test2"/>
      </operator>
      <operator activated="true" class="com.aylien.textapi.rapidminer:aylien_sentiment" compatibility="0.2.000" expanded="true" height="68" name="Analyze Sentiment" width="90" x="313" y="34">
        <parameter key="connection" value="Aylien"/>
        <parameter key="input_attribute" value="TEXT"/>
        <parameter key="sentiment_mode" value="document"/>
      </operator>
      <operator activated="true" class="text:documents_to_data" compatibility="8.1.000" expanded="true" height="82" name="Documents to Data" width="90" x="514" y="34">
        <parameter key="text_attribute" value="TEXT"/>
        <parameter key="label_attribute" value="TEXT"/>
      </operator>
      <operator activated="true" class="write_excel" compatibility="8.2.000" expanded="true" height="82" name="Write Excel" width="90" x="715" y="34">
        <parameter key="excel_file" value="C:\Users\Hjalmar\Documents\Master thesis\Data\Sentiment\Sentiment AAPLlsx.xlsx"/>
        <parameter key="sheet_name" value="APL Tweet test2"/>
        <parameter key="date_format" value="M/d/yy h:mm a"/>
      </operator>
      <connect from_op="Retrieve AAPL Tweet test2" from_port="output" to_op="Analyze Sentiment" to_port="Example Set"/>
      <connect from_op="Analyze Sentiment" from_port="Example Set" to_op="Documents to Data" to_port="documents 1"/>
      <connect from_op="Documents to Data" from_port="example set" to_op="Write Excel" to_port="input"/>
      <connect from_op="Write Excel" from_port="through" 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>

 

lionelderkrikor

Hi @h_jernstrom,

 

Simply, remove the Documents to Data operator and connect

directly Analyze Sentiment operator to the Write Excel operator.

 

Regards,

 

Lionel

h_jernstrom

@lionelderkrikor Thanks for your help! I did initially try this, but I got another error message. The 'write Excel' operator says the following: Mandatory input missing at port Write Excel.input. Is this due to the file format that the 'write Excel' operator expects to receive?

Thomas_Ott

@h_jernstrom that error leads me to believe that you didn't fill out the parameters in your Write Excel operator. Make sure you set a filename and path. 

h_jernstrom

@Thomas_Ott Thanks for your reply. I actually just now ran it despite the error message, and I successfully got the Excel output that I required, so I guess the error message could be ignored. Issue resvoled, thanks!