I dicide not to buy another 512MB RAM.
so I try to use smaller sub groups.
Finally, 768MB RAM can afford 416000 training data *130 testing data.
※ 引述《mercurial (多變)》之銘言：
: I did try to divide them to sub groups.
: This time, the problem is out of memory.
: I have already bought a 512MB RAM. ><"
: Now my pc has 256+512MB RAM.
: Later,I will go out to buy another 512MB.
: This hw is very very very expensive............
: ※ 引述《anguso (愛寶)》之銘言：
: : You have to split them into small groups.
: :