Hello,
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...
Help!
Thanks,
Barthélémy