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 on: October 19, 2014, 04:07:06 PM 
Started by qwertz - Last post by qwertz

Dear all,

initially I thought that this question would go along with my last post but after spending some hours trying, I thought that it might better fit in a new topic.

Thanks to Marco I found a way to manipulate example sets / tables with the script operator

But a short time after I ended up with the questions
-How to create a new table / example set with scripting?
-How to add new attributes and examples to the input example set?
-How to provide newly created and input example set together to the scripting output?

As mentioned in the linked post, I found a kind of documentation but probably I do something wrong with the syntax. Struggling for hours now Sad
Please help Smiley


 on: October 19, 2014, 01:23:21 PM 
Started by blueearth - Last post by blueearth
I have a question regarding to extracting True-false negative and Positive, AUC etc.
is it possible to extract those values for data with polynomial label?
if yes, how?
Thanks alot

 on: October 19, 2014, 09:26:50 AM 
Started by hammadalam89 - Last post by hammadalam89
I think this forum is dead  Undecided

 on: October 18, 2014, 02:17:57 AM 
Started by cmvb15 - Last post by rsadoddin
Hello Marco,
I have exactly the same problem mentioned here. I am checking the structure. It seems exactly what is required. Two columns with specified headers, and with positive, negative or missing values.
I am getting the same error message.

Would please comment on this issue clearly? I checked the other thread and it didn't solve my problem.

 on: October 18, 2014, 12:24:29 AM 
Started by owen - Last post by owen
I have struggled for some time to find a mirror or apt-get incantation that will permit me download and install Octave 3.6.1 on Linux. No luck. That version is contemporary with Ubuntu 12.10 that is at end of life. I'm running Xubuntu 12.04 that wants Octave 3.2, and Lubuntu 14.04 that wants Octave 3.8.1. Hmmm...

 on: October 17, 2014, 09:16:13 PM 
Started by owen - Last post by owen
Hello Sylvain,

Thank you for your answer.
I reproduced the error also using Octave 3.8.1.
But since you said, 3.6.1 (exactly), I think I should find and install Octave 3.6.1.
Do you agree?



 on: October 17, 2014, 07:41:00 PM 
Started by qwertz - Last post by qwertz
Fantastic! Thank you so much! Especially as you provided this code which is easy to follow. When I first saw the sample processes which come with Rapidminer I was a little confused:

"for (Attribute attribute : exampleSet.getAttributes())"

As a newbie in programming I am not so familiar with the syntax. But this seems to be a for each loop which does multiple things like initializing an iteration variable, getting all the attributes and iterating over all the attributes. Without knowing it better I probably would have done it in three lines.

Meanwhile I also found a kind of documentation, but not sure whether this is official and probably it is not maintained any longer. However, it might help someone out there:

Best regards

 on: October 17, 2014, 05:07:01 PM 
Started by hammadalam89 - Last post by hammadalam89
I am doing sentiment analysis on news articles. But when I train my data, I am unable to get accuracy more than 64% by using SVM algorithm. For that improvement, I must have to focus on Feature Selection.

What are that features which are present in Rapidminer6 for feature selection ? What can I do for that ?

 on: October 17, 2014, 03:11:22 PM 
Started by HeikoPaulheim - Last post by Marco Boeck

after some investigation there would be a way to fix that. Studio uses the default "loadClass()" implementation from ClassLoader. Which tries to load from the root classloader first (i.e. the main classloader instead of the plugin one). We have created an internal issue to fix that.


 on: October 17, 2014, 02:56:58 PM 
Started by nemo - Last post by Michael

This issue should be fixed in the upcoming release (RapidMiner Studio 6.1.001).

Thanks for the feedback,

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