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C++ GMatrix::resize方法代码示例

本文整理汇总了C++中GMatrix::resize方法的典型用法代码示例。如果您正苦于以下问题：C++ GMatrix::resize方法的具体用法？C++ GMatrix::resize怎么用？C++ GMatrix::resize使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类GMatrix的用法示例。


在下文中一共展示了GMatrix::resize方法的12个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: loadNASDAQ

void Loader::loadNASDAQ(GMatrix &trainFeat, GMatrix &trainLab, GMatrix &testFeat, GMatrix &testLab)
{
	GMatrix rawTrain, rawTest;
	rawTrain.loadArff("data/nasdaq_train.arff");
	rawTest.loadArff("data/nasdaq_test.arff");
	
	double *x, *y;
	
	trainFeat.resize(rawTrain.rows(), 1);
	trainLab.resize(rawTrain.rows(), 1);
	testFeat.resize(rawTest.rows(), 1);
	testLab.resize(rawTest.rows(), 1);
	
	for(size_t i = 0; i < rawTrain.rows() + rawTest.rows(); i++)
	{
		if(i < rawTrain.rows())
		{
			x = trainFeat[i];
			y = trainLab[i];
		}
		else
		{
			x = testFeat[i - rawTrain.rows()];
			y = testLab[i - rawTrain.rows()];
		}
		
		*x = double(i) / rawTrain.rows();
		*y = i < rawTrain.rows() ? rawTrain[i][0] : rawTest[i - rawTrain.rows()][0];
		*y = *y - 3.25;
		*y = *y * 15;
	}
}
开发者ID:AntonOrnatskyi，项目名称:waffles，代码行数:32，代码来源:loader.cpp

示例2: 

void Loader::loadTest04(GMatrix &trainFeat, GMatrix &trainLab, GMatrix &testFeat, GMatrix &testLab)
{
	size_t train_size = 128;
	size_t test_size = 256;
	
	trainFeat.resize(train_size, 1);
	trainLab.resize(train_size, 1);
	testFeat.resize(test_size, 1);
	testLab.resize(test_size, 1);
	
	size_t sines = 2;
	
	double *x, *y;
	for(size_t i = 0; i < train_size + test_size; i++)
	{
		if(i < train_size)
		{
			x = trainFeat[i];
			y = trainLab[i];
		}
		else
		{
			x = testFeat[i - train_size];
			y = testLab[i - train_size];
		}
		
		*x = i / double(train_size);
		
		*y = 16.0 - 5 * *x;
		for(size_t k = 0; k < sines; k++)
		{
			*y -= sin((4.25 * M_PI * (k + 1)) * *x);
		}
	}
}
开发者ID:AntonOrnatskyi，项目名称:waffles，代码行数:35，代码来源:loader.cpp

示例3: loadMackeyGlassData

void Loader::loadMackeyGlassData(GMatrix &trainFeat, GMatrix &trainLab, GMatrix &testFeat, GMatrix &testLab)
{
	GMatrix raw;
	raw.loadArff("data/mackey_glass.arff");
	
	size_t dims = 1;
	size_t offset = 30;
	size_t train_size = 300;
	size_t test_size = 600;
	
	double *x, *y;
	
	trainFeat.resize(train_size, 1);
	trainLab.resize(train_size, dims);
	testFeat.resize(test_size, 1);
	testLab.resize(test_size, dims);
	
	for(size_t i = 0; i < train_size + test_size; i++)
	{
		if(i < train_size)
		{
			x = trainFeat[i];
			y = trainLab[i];
		}
		else
		{
			x = testFeat[i - train_size];
			y = testLab[i - train_size];
		}
		
		*x = double(i) / train_size;
		*y = raw[offset + i][1];
	}
}
开发者ID:AntonOrnatskyi，项目名称:waffles，代码行数:34，代码来源:loader.cpp

示例4: loadTemperatureData

void Loader::loadTemperatureData(GMatrix &trainFeat, GMatrix &trainLab, GMatrix &testFeat, GMatrix &testLab)
{
	// TODO: determine optimal granularity
	
	GMatrix raw;
	raw.loadArff("data/melbourne-temperature.arff");
	
	size_t dims = 2;
	size_t offset = 0;
	size_t granularity = 7;
	
	double *x, *y;
	
	trainFeat.resize(TRAIN_SIZE, 1);
	trainLab.resize(TRAIN_SIZE, dims);
	testFeat.resize(TEST_SIZE, 1);
	testLab.resize(TEST_SIZE, dims);
	
	for(size_t i = 0; i < TRAIN_SIZE + TEST_SIZE; i++)
	{
		if(i < TRAIN_SIZE)
		{
			x = trainFeat[i];
			y = trainLab[i];
		}
		else
		{
			x = testFeat[i - TRAIN_SIZE];
			y = testLab[i - TRAIN_SIZE];
		}
		
		x[0] = double(i) / TRAIN_SIZE;
		
		for(size_t j = 0; j < dims; j++)
		{
			y[j] = 0.0;
			for(size_t k = granularity; k < granularity * 2; k++)
			{
				y[j] += raw[offset + i * granularity + k][j + 1];
			}
			y[j] /= double(granularity);
			y[j] *= 0.05;
		}
	}
	
	// Smooth input data
	
	for(size_t i = 1; i < TRAIN_SIZE - 1; i++)
	{
		for(size_t j = 0; j < dims; j++)
		{
			trainLab[i][j] = (trainLab[i-1][j] + trainLab[i][j] + trainLab[i+1][j]) / 3.0;
		}
	}
}
开发者ID:AntonOrnatskyi，项目名称:waffles，代码行数:55，代码来源:loader.cpp

示例5: loadToyData

void Loader::loadToyData(GMatrix &trainFeat, GMatrix &trainLab, GMatrix &testFeat, GMatrix &testLab)
{
	size_t dims = 1;
	size_t train_size = 100;
	size_t test_size = 100;
	
	trainFeat.resize(train_size, 1);
	trainLab.resize(train_size, dims);
	testFeat.resize(test_size, 1);
	testLab.resize(test_size, dims);
	
	GRand r(time(NULL));
	size_t sines = 3;
	size_t randsPerDim = 2 * sines + 2;
	double rands[dims * randsPerDim];
	
	for(size_t i = 0; i < dims; i++)
	{
		for(size_t j = 0; j < sines; j++)
		{
			rands[randsPerDim * i + 2 * j] = r.normal() + 1.0;
			rands[randsPerDim * i + 2 * j + 1] = (r.next(6) + 6) * M_PI;
		}
		rands[randsPerDim * i + 2 * sines] = r.uniform() * 5;
		rands[randsPerDim * i + 1 * sines + 1] = r.uniform() * 0;
	}
	
	double *x, *y;
	for(size_t i = 0; i < train_size + test_size; i++)
	{
		if(i < train_size)
		{
			x = trainFeat[i];
			y = trainLab[i];
		}
		else
		{
			x = testFeat[i - train_size];
			y = testLab[i - train_size];
		}
		
		*x = i / double(train_size);
		
		for(size_t j = 0; j < dims; j++)
		{
			y[j] = rands[randsPerDim * j + 2 * sines] * *x + rands[randsPerDim * j + 2 * sines + 1];
			for(size_t k = 0; k < sines; k++)
			{
				y[j] += rands[randsPerDim * j + 2 * k] * sin(rands[randsPerDim * j + 2 * k + 1] * *x);
			}
		}
	}
}
开发者ID:AntonOrnatskyi，项目名称:waffles，代码行数:53，代码来源:loader.cpp

示例6: sin

void Loader::loadTest01(GMatrix &trainFeat, GMatrix &trainLab, GMatrix &testFeat, GMatrix &testLab)
{
	size_t dims = 1;
	size_t train_size = 100;
	size_t test_size = 100;
	
	trainFeat.resize(train_size, 1);
	trainLab.resize(train_size, dims);
	testFeat.resize(test_size, 1);
	testLab.resize(test_size, dims);
	
	size_t sines = 3;
	size_t randsPerDim = 2 * sines + 2;
	double rands[dims * randsPerDim];
	
	for(size_t i = 0; i < dims; i++)
	{
		for(size_t j = 0; j < sines; j++)
		{
			rands[randsPerDim * i + 2 * j] = 1.0;
			rands[randsPerDim * i + 2 * j + 1] = (6.0 + 3.0 * j) * M_PI;
		}
		rands[randsPerDim * i + 2 * sines] = 2.5;
		rands[randsPerDim * i + 1 * sines + 1] = 0.0;
	}
	
	double *x, *y;
	for(size_t i = 0; i < train_size + test_size; i++)
	{
		if(i < train_size)
		{
			x = trainFeat[i];
			y = trainLab[i];
		}
		else
		{
			x = testFeat[i - train_size];
			y = testLab[i - train_size];
		}
		
		*x = i / double(train_size);
		
		for(size_t j = 0; j < dims; j++)
		{
			y[j] = rands[randsPerDim * j + 2 * sines] * *x + rands[randsPerDim * j + 2 * sines + 1];
			for(size_t k = 0; k < sines; k++)
			{
				y[j] += rands[randsPerDim * j + 2 * k] * sin(rands[randsPerDim * j + 2 * k + 1] * *x);
			}
		}
	}
}
开发者ID:AntonOrnatskyi，项目名称:waffles，代码行数:52，代码来源:loader.cpp

示例7: loadData

void GRecommenderLib::loadData(GMatrix& data, const char* szFilename)
{
	PathData pd;
	GFile::parsePath(szFilename, &pd);
	if(_stricmp(szFilename + pd.extStart, ".sparse") == 0)
	{
		GDom doc;
		doc.loadJson(szFilename);
		GSparseMatrix sm(doc.root());
		data.resize(0, 3);
		for(size_t i = 0; i < sm.rows(); i++)
		{
			GSparseMatrix::Iter rowEnd = sm.rowEnd(i);
			for(GSparseMatrix::Iter it = sm.rowBegin(i); it != rowEnd; it++)
			{
				GVec& vec = data.newRow();
				vec[0] = (double)i;
				vec[1] = (double)it->first;
				vec[2] = it->second;
			}
		}
	}
	else if(_stricmp(szFilename + pd.extStart, ".arff") == 0)
		data.loadArff(szFilename);
	else
		throw Ex("Unsupported file format: ", szFilename + pd.extStart);
}
开发者ID:BaskWind，项目名称:waffles，代码行数:27，代码来源:GRecommenderLib.cpp

示例8: loadPrecipitationData

void Loader::loadPrecipitationData(GMatrix &trainFeat, GMatrix &trainLab, GMatrix &testFeat, GMatrix &testLab)
{
	// Only 87 samples, so TEST_SIZE should be 23 if TRAIN_SIZE is 64
	
	GMatrix raw;
	raw.loadArff("data/precipitation.arff");
	
	size_t dims = 1;
	double *x, *y;
	
	trainFeat.resize(TRAIN_SIZE, 1);
	trainLab.resize(TRAIN_SIZE, dims);
	testFeat.resize(TEST_SIZE, 1);
	testLab.resize(TEST_SIZE, dims);
	
	for(size_t i = 0; i < TRAIN_SIZE + TEST_SIZE; i++)
	{
		if(i < TRAIN_SIZE)
		{
			x = trainFeat[i];
			y = trainLab[i];
		}
		else
		{
			x = testFeat[i - TRAIN_SIZE];
			y = testLab[i - TRAIN_SIZE];
		}
		
		x[0] = double(i) / TRAIN_SIZE;
		y[0] = raw[i][1] * 0.05;
		// y[1] = raw[i][2] * 0.05;
		// y[2] = raw[i][3] * 0.05;
		// y[3] = raw[i][4] * 0.05;
	}
	
	for(size_t i = 1; i < TRAIN_SIZE - 1; i++)
	{
		for(size_t j = 0; j < dims; j++)
		{
			trainLab[i][j] = (trainLab[i-1][j] + 2 * trainLab[i][j] + trainLab[i+1][j]) * 0.25;
		}
	}
}
开发者ID:AntonOrnatskyi，项目名称:waffles，代码行数:43，代码来源:loader.cpp

示例9: loadSunSpotData

void Loader::loadSunSpotData(GMatrix &trainFeat, GMatrix &trainLab, GMatrix &testFeat, GMatrix &testLab)
{
	GMatrix raw;
	raw.loadArff("data/sunspots.arff");
	
	size_t dims = 1;
	size_t offset = 0;
	size_t granularity = 6;
	size_t train_size = 240;
	size_t test_size = 240;
	
	double scale = 0.01;
	double *x, *y;
	
	trainFeat.resize(train_size, 1);
	trainLab.resize(train_size, dims);
	testFeat.resize(test_size, 1);
	testLab.resize(test_size, dims);
	
	for(size_t i = 0; i < train_size + test_size; i++)
	{
		if(i < train_size)
		{
			x = trainFeat[i];
			y = trainLab[i];
		}
		else
		{
			x = testFeat[i - train_size];
			y = testLab[i - train_size];
		}
		
		*x = double(i) / train_size;
		
		*y = 0.0;
		for(size_t j = 0; j < granularity; j++)
		{
			*y += scale * raw[offset + granularity * i + j][3];
		}
		*y /= granularity;
	}
}
开发者ID:AntonOrnatskyi，项目名称:waffles，代码行数:42，代码来源:loader.cpp

示例10: loadStockData

void Loader::loadStockData(GMatrix &trainFeat, GMatrix &trainLab, GMatrix &testFeat, GMatrix &testLab)
{
	// 3   - AAPL
	// 108 - MSFT
	// 157 - DJI
	
	GMatrix raw;
	raw.loadArff("data/stocks.arff");
	
	size_t dims = 1;
	size_t offset = 600;
	size_t train_size = 500;
	size_t test_size = 300;
	double *x, *y;
	
	trainFeat.resize(train_size, 1);
	trainLab.resize(train_size, dims);
	testFeat.resize(test_size, 1);
	testLab.resize(test_size, dims);
	
	double log_10 = log(10);
	double vert_offset = 3.9;
	double scale = 20;
	
	for(size_t i = 0; i < train_size + test_size; i++)
	{
		if(i < train_size)
		{
			x = trainFeat[i];
			y = trainLab[i];
		}
		else
		{
			x = testFeat[i - train_size];
			y = testLab[i - train_size];
		}
		
		x[0] = double(i) / train_size;
		y[0] = ((log(raw[offset + i][157]) / log_10) - vert_offset) * scale;
	}
}
开发者ID:AntonOrnatskyi，项目名称:waffles，代码行数:41，代码来源:loader.cpp

示例11: loadAirPassengerData

void Loader::loadAirPassengerData(GMatrix &trainFeat, GMatrix &trainLab, GMatrix &testFeat, GMatrix &testLab)
{
	GMatrix raw;
	raw.loadArff("data/air_passengers.arff");
	
	size_t dims = 1;
	size_t offset = 0;
	size_t train_size = 72;
	size_t test_size = 72;
	
	double *x, *y;
	
	trainFeat.resize(train_size, 1);
	trainLab.resize(train_size, dims);
	testFeat.resize(test_size, 1);
	testLab.resize(test_size, dims);
	
	double log_10 = log(10);
	double vert_offset = 2;
	double scale = 10;//0.1;
	
	for(size_t i = 0; i < train_size + test_size; i++)
	{
		if(i < train_size)
		{
			x = trainFeat[i];
			y = trainLab[i];
		}
		else
		{
			x = testFeat[i - train_size];
			y = testLab[i - train_size];
		}
		
		*x = double(i) / train_size;
		*y = ((log(scale * raw[offset + i][0]) / log_10) - vert_offset);
	}
	
	trainLab.saveArff("out/train.arff");
	testLab.saveArff("out/test.arff");
}
开发者ID:AntonOrnatskyi，项目名称:waffles，代码行数:41，代码来源:loader.cpp

示例12: loadOzoneData

void Loader::loadOzoneData(GMatrix &trainFeat, GMatrix &trainLab, GMatrix &testFeat, GMatrix &testLab)
{
	GMatrix raw;
	raw.loadArff("data/mhsets_monthly-ozone.arff");
	
	size_t dims = 1;
	size_t offset = 0;
	size_t train_size = 108;
	size_t test_size = 44;
	
	double *x, *y;
	
	trainFeat.resize(train_size, 1);
	trainLab.resize(train_size, dims);
	testFeat.resize(test_size, 1);
	testLab.resize(test_size, dims);
	
	for(size_t i = 0; i < train_size + test_size; i++)
	{
		if(i < train_size)
		{
			x = trainFeat[i];
			y = trainLab[i];
		}
		else
		{
			x = testFeat[i - train_size];
			y = testLab[i - train_size];
		}
		
		*x = double(i) / train_size;
		*y = log(raw[offset + i][0]) / log(10);
	}
	
	trainLab.saveArff("out/train.arff");
	testLab.saveArff("out/test.arff");
}
开发者ID:AntonOrnatskyi，项目名称:waffles，代码行数:37，代码来源:loader.cpp


注：本文中的GMatrix::resize方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。