Thanks for suggestion..

Dear Gagnani,

i didn't  understand your question,

you wnat datasets with number of attributs more than 10000 or number of instances??

what do you mean by positive values ?

-  Is it about the attributs values (you want datasets having attributs with only positive value ?  ), or,

-  you mean, by positives values, may be positive instances. That is, datasets that have only one classe instances.

You can see other datasets in "Keel datasets repository", accessible via this link :

http://www.keel.es/dataset.php

You can find some datasets in the medical domaine with a big number of attributs in this link : http://www.gems-system.org/

Hope this will help you

 Bests.