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Process document from data
I'm very begginer at Rapid Miner and applying the video tutorials found on http://vancouverdata.blogspot.com/2010/11/text-analytics-with-rapidminer-part-3.html (text mining)
I have a problem at the very basic level.
I want to use the tool "Process document from data" to compute binary word vectors
To do so, I load an excel file with the embedded read excel tool. My file is a unique columns with 500 rows each containing text data. I then send this to the "exa" input of the Process document from data box. In the box, I make some basic processings (tokenize, single case, word filter and token filter). And I connect the "exa" output of the box to the results connector.
The problem is that I dont get vectors but only a two columns table, first column = row numbers (1,2,etc.), second rows titled "text" but with empty cells. The description of the data is : ExampleSet(437 examples, 1 special attribute, 0 regular attributes). What can I do ????
When I put a break point after the read excel tool, I get (in the results) a two columns table, the first one with Row No. and the second with the rows in my excel file. So it looks like the file is red properly...