RapidMiner Text Processing: How To write ngrams to file

Question

How can I write ngrams extracted from Text to a new XLS or CSV file?

The process I created is shown below. I would like to know how to connect the Write Document utility and at which level. In the Main Process or in the Vector Creation? Which pipe goes where?

Screenshot Main Process: enter image description here

Screenshot Vector Creation process:

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Screenshot ngrams produced:

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Screenshot Write Document operator:

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I am using RapidMiner Studio 6.0.003 Community Edition

EDIT Solution:

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score 1 · Accepted Answer · answered Jun 16 '14 at 19:16

There are two outputs from the Process Documents from Files operator. The top one is an example set and will correspond to the document vector generated by the operator. The bottom one is a word list that contains all the different words, including n-grams, that form the attributes within the document vector.

To write the word list to a file, you have to convert it to an example set using the WordList to Data operator. The example set that is produced can then be written to CSV or XLSX using the Write CSV or Write Excel operators.

RapidMiner Text Processing: How To write ngrams to file

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