Java Object Array Convert To objectArrayToRVector(Object[] rValues)

Description

Convert the given values to an R vector.

License

Open Source License

Parameter

Parameter	Description
rValues	the values whose Object#toString() values we will use to form the list

Return

the string that can be used as an R vector

Declaration

public static String objectArrayToRVector(Object[] rValues) 

Method Source Code

//package com.java2s;
/*/* ww w. j av a2  s.  c  om*/
 * Copyright (c) 2009 The Jackson Laboratory
 * 
 * This software was developed by Gary Churchill's Lab at The Jackson
 * Laboratory (see http://research.jax.org/faculty/churchill).
 *
 * This 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, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This software 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 software.  If not, see <http://www.gnu.org/licenses/>.
 */

public class Main {
    private static final String R_VECTOR_START = "c(";
    private static final String R_VECTOR_END = ")";
    private static final String R_VECTOR_ELEMENT_SEPERATOR = ", ";

    /**
     * Convert the given values to an R vector. Note that the given values
     * are not quoted. It is assumed that if they are already in "R" form and
     * so the {@link Object#toString()} value is used directly
     * @param rValues
     *          the values whose {@link Object#toString()} values
     *          we will use to form the list
     * @return
     *          the string that can be used as an R vector
     */
    public static String objectArrayToRVector(Object[] rValues) {
        StringBuffer sb = new StringBuffer(R_VECTOR_START);

        if (rValues.length > 0) {
            // treat the 1st one as a special case (no comma)
            sb.append(rValues[0].toString());

            // all the rest have commas
            for (int i = 1; i < rValues.length; i++) {
                sb.append(R_VECTOR_ELEMENT_SEPERATOR);
                sb.append(rValues[i].toString());
            }
        }

        sb.append(R_VECTOR_END);

        return sb.toString();
    }
}

Related

1. convertObjectToInt(Object value)
2. convertObjectToIntegerIfNecessary(final Object configValue)
3. convertObjectToSqlSyntaxe(Object value)
4. objectArrayToIntArray(Object[] objectArray)
5. objectArrayToObjectArray(Object[] objArray)
6. objectToIntegerArray(Object[] objects)
7. ObjectToSingleColumnArray(Object[][] array1)
8. ObjectToStringArray(Object[][] array1)