blob: 038f490b5f1e2a6973e980051678ef7d0aa3f370 [file] [log] [blame]
#-------------------------------------------------------------
#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
#
#-------------------------------------------------------------
# Increase rows and cols for better performance gain
X = rand(rows=1024, cols=16, seed=42);
tmp = X[,1];
R = matrix(0, ncol(X), 1);
for(i in 2:ncol(X)) {
A = t(tmp) %*% tmp;
R[i,] = sum(A)
tmp = cbind(tmp, X[,i]);
A = t(tmp) %*% tmp;
R[i,] += sum(A)
}
write(R, $1, format="text");