/*
- * Jalview - A Sequence Alignment Editor and Viewer
- * Copyright (C) 2007 AM Waterhouse, J Procter, G Barton, M Clamp, S Searle
- *
- * 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; either version 2
+ * Jalview - A Sequence Alignment Editor and Viewer (Version 2.8.2)
+ * Copyright (C) 2014 The Jalview Authors
+ *
+ * This file is part of Jalview.
+ *
+ * Jalview 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 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.
- *
+ *
+ * Jalview 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 Street, Fifth Floor, Boston, MA 02110-1301, USA
+ * along with Jalview. If not, see <http://www.gnu.org/licenses/>.
+ * The Jalview Authors are detailed in the 'AUTHORS' file.
*/
package jalview.util;
+/**
+ * A class to perform efficient sorting of arrays of objects based on arrays of
+ * scores or other attributes. For example, residues by frequency.
+ *
+ * @author gmcarstairs
+ *
+ */
public class QuickSort
{
+ /**
+ * Sorts both arrays with respect to ascending order of the items in the first
+ * array.
+ *
+ * @param arr
+ * @param s
+ */
+ public static void sort(int[] arr, Object[] s)
+ {
+ sort(arr, 0, arr.length - 1, s);
+ }
+
+ /**
+ * Sorts both arrays with respect to ascending order of the items in the first
+ * array.
+ *
+ * @param arr
+ * @param s
+ */
public static void sort(float[] arr, Object[] s)
{
sort(arr, 0, arr.length - 1, s);
}
-
+
+ /**
+ * Sorts both arrays with respect to ascending order of the items in the first
+ * array.
+ *
+ * @param arr
+ * @param s
+ */
public static void sort(double[] arr, Object[] s)
{
sort(arr, 0, arr.length - 1, s);
}
+ /**
+ * Sorts both arrays with respect to descending order of the items in the
+ * first array.
+ *
+ * @param arr
+ * @param s
+ */
public static void sort(String[] arr, Object[] s)
{
stringSort(arr, 0, arr.length - 1, s);
}
- public static void stringSort(String[] arr, int p, int r, Object[] s)
+ static void stringSort(String[] arr, int p, int r, Object[] s)
{
int q;
}
}
- public static void sort(float[] arr, int p, int r, Object[] s)
+ static void sort(float[] arr, int p, int r, Object[] s)
{
int q;
sort(arr, q + 1, r, s);
}
}
- public static void sort(double[] arr, int p, int r, Object[] s)
+
+ static void sort(double[] arr, int p, int r, Object[] s)
{
int q;
}
}
- private static int partition(float[] arr, int p, int r, Object[] s)
+ static void sort(int[] arr, int p, int r, Object[] s)
+ {
+ int q;
+
+ if (p < r)
+ {
+ q = partition(arr, p, r, s);
+ sort(arr, p, q, s);
+ sort(arr, q + 1, r, s);
+ }
+ }
+
+ static int partition(float[] arr, int p, int r, Object[] s)
{
float x = arr[p];
int i = p - 1;
do
{
j = j - 1;
- }
- while (arr[j] > x);
+ } while (arr[j] > x);
do
{
i = i + 1;
- }
- while (arr[i] < x);
+ } while (arr[i] < x);
if (i < j)
{
}
}
- private static int partition(double[] arr, int p, int r, Object[] s)
+ static int partition(int[] arr, int p, int r, Object[] s)
{
- double x = arr[p];
+ int x = arr[p];
int i = p - 1;
int j = r + 1;
do
{
j = j - 1;
- }
- while (arr[j] > x);
+ } while (arr[j] > x);
do
{
i = i + 1;
+ } while (arr[i] < x);
+
+ if (i < j)
+ {
+ int tmp = arr[i];
+ arr[i] = arr[j];
+ arr[j] = tmp;
+
+ Object tmp2 = s[i];
+ s[i] = s[j];
+ s[j] = tmp2;
}
- while (arr[i] < x);
+ else
+ {
+ return j;
+ }
+ }
+ }
+
+ static int partition(double[] arr, int p, int r, Object[] s)
+ {
+ double x = arr[p];
+ int i = p - 1;
+ int j = r + 1;
+
+ while (true)
+ {
+ do
+ {
+ j = j - 1;
+ } while (arr[j] > x);
+
+ do
+ {
+ i = i + 1;
+ } while (arr[i] < x);
if (i < j)
{
}
}
- private static int stringPartition(String[] arr, int p, int r, Object[] s)
+ static int stringPartition(String[] arr, int p, int r, Object[] s)
{
String x = arr[p];
int i = p - 1;
do
{
j = j - 1;
- }
- while (arr[j].compareTo(x) < 0);
+ } while (arr[j].compareTo(x) < 0);
do
{
i = i + 1;
- }
- while (arr[i].compareTo(x) > 0);
+ } while (arr[i].compareTo(x) > 0);
if (i < j)
{
git://source.jalview.org / jalview.git / blobdiff