C++ (Cpp) GMatrix::sort Examples

Example #1

File: main.cpp Project: litaoshao/waffles

void SortByAttribute(GArgReader& args)
{
	GMatrix* pData = loadData(args.pop_string());
	Holder<GMatrix> hData(pData);
	size_t nAttr = args.pop_uint();
	size_t attrCount = pData->relation()->size();
	if(nAttr >= attrCount)
		ThrowError("Index out of range");

	// Parse options
	bool descending = false;
	while(args.size() > 0)
	{
		if(args.if_pop("-descending"))
			descending = true;
		else
			ThrowError("Invalid option: ", args.peek());
	}

	pData->sort(nAttr);
	if(descending)
		pData->reverseRows();
	pData->print(cout);
}