本文整理汇总了Java中org.apache.mahout.math.Vector.isSequentialAccess方法的典型用法代码示例。如果您正苦于以下问题：Java Vector.isSequentialAccess方法的具体用法？Java Vector.isSequentialAccess怎么用？Java Vector.isSequentialAccess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org.apache.mahout.math.Vector的用法示例。
在下文中一共展示了Vector.isSequentialAccess方法的1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Java代码示例。
示例1: loadVectors
import org.apache.mahout.math.Vector; //导入方法依赖的package包/类
private static Matrix loadVectors(String vectorPathString, Configuration conf)
throws IOException {
Path vectorPath = new Path(vectorPathString);
FileSystem fs = vectorPath.getFileSystem(conf);
List<Path> subPaths = Lists.newArrayList();
if (fs.isFile(vectorPath)) {
subPaths.add(vectorPath);
} else {
for (FileStatus fileStatus : fs.listStatus(vectorPath, PathFilters.logsCRCFilter())) {
subPaths.add(fileStatus.getPath());
}
}
List<Pair<Integer, Vector>> rowList = Lists.newArrayList();
int numRows = Integer.MIN_VALUE;
int numCols = -1;
boolean sequentialAccess = false;
for (Path subPath : subPaths) {
for (Pair<IntWritable, VectorWritable> record
: new SequenceFileIterable<IntWritable, VectorWritable>(subPath, true, conf)) {
int id = record.getFirst().get();
Vector vector = record.getSecond().get();
if (vector instanceof NamedVector) {
vector = ((NamedVector)vector).getDelegate();
}
if (numCols < 0) {
numCols = vector.size();
sequentialAccess = vector.isSequentialAccess();
}
rowList.add(Pair.of(id, vector));
numRows = Math.max(numRows, id);
}
}
numRows++;
Vector[] rowVectors = new Vector[numRows];
for (Pair<Integer, Vector> pair : rowList) {
rowVectors[pair.getFirst()] = pair.getSecond();
}
return new SparseRowMatrix(numRows, numCols, rowVectors, true, !sequentialAccess);
}