void split(GArgReader& args)
{
// Load
GMatrix* pData = loadData(args.pop_string());
Holder<GMatrix> hData(pData);
int pats = (int)pData->rows() - args.pop_uint();
if(pats < 0)
ThrowError("out of range. The data only has ", to_str(pData->rows()), " rows.");
const char* szFilename1 = args.pop_string();
const char* szFilename2 = args.pop_string();
unsigned int nSeed = getpid() * (unsigned int)time(NULL);
bool shouldShuffle = false;
while(args.size() > 0){
if(args.if_pop("-shuffle")){
shouldShuffle = true;
}else if(args.if_pop("-seed")){
nSeed = args.pop_uint();
}else
ThrowError("Invalid option: ", args.peek());
}
// Shuffle if necessary
GRand rng(nSeed);
if(shouldShuffle){
pData->shuffle(rng);
}
// Split
GMatrix other(pData->relation());
pData->splitBySize(&other, pats);
pData->saveArff(szFilename1);
other.saveArff(szFilename2);
}
void Shuffle(GArgReader& args)
{
// Load
GMatrix* pData = loadData(args.pop_string());
Holder<GMatrix> hData(pData);
// Parse options
unsigned int nSeed = getpid() * (unsigned int)time(NULL);
while(args.size() > 0)
{
if(args.if_pop("-seed"))
nSeed = args.pop_uint();
else
ThrowError("Invalid option: ", args.peek());
}
// Shuffle and print
GRand prng(nSeed);
pData->shuffle(prng);
pData->print(cout);
}
