| #------------------------------------------------------------- |
| # |
| # 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. |
| # |
| #------------------------------------------------------------- |
| |
| library("Matrix") |
| |
| args <- commandArgs(TRUE) |
| options(digits=22) |
| |
| |
| X = as.matrix(readMM(paste(args[1], "A.mtx", sep=""))) |
| colnames(X) = colnames(X, do.NULL=FALSE, prefix="C") |
| Y = X |
| |
| for (j in 1:ncol(X)) { |
| col = X[, j] |
| med = quantile(col, probs=0.5, type=1, names=FALSE, na.rm=FALSE) |
| q1 = quantile(col, probs=0.25, type=1, names=FALSE, na.rm=FALSE) |
| q3 = quantile(col, probs=0.75, type=1, names=FALSE, na.rm=FALSE) |
| iqr = q3 - q1 |
| if (iqr == 0 || is.nan(iqr)) iqr = 1 |
| Y[, j] = (col - med) / iqr |
| } |
| |
| writeMM(as(Y, "CsparseMatrix"), paste(args[2], "B", sep="")) |
