Here you can find the source of convertDoubleToFloat(final double[][] doubleSeries)
public static float[][] convertDoubleToFloat(final double[][] doubleSeries)
//package com.java2s; /******************************************************************************* * Copyright (C) 2005, 2016 Wolfgang Schramm and Contributors * * This program is free software; you can redistribute it and/or modify it under * the terms of the GNU General Public License as published by the Free Software * Foundation version 2 of the License./*from w ww. j ava 2s .c o m*/ * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along with * this program; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA *******************************************************************************/ public class Main { public static float[][] convertDoubleToFloat(final double[][] doubleSeries) { final float[][] floatSeries = new float[doubleSeries.length][]; for (int serieIndex = 0; serieIndex < doubleSeries.length; serieIndex++) { final double[] doubleValues = doubleSeries[serieIndex]; if (doubleValues != null) { final float[] floatSerie = floatSeries[serieIndex] = new float[doubleValues.length]; for (int floatIndex = 0; floatIndex < floatSerie.length; floatIndex++) { floatSeries[serieIndex][floatIndex] = (float) doubleValues[floatIndex]; } } } return floatSeries; } }