本文整理汇总了Java中cern.colt.list.IntArrayList.trimToSize方法的典型用法代码示例。如果您正苦于以下问题：Java IntArrayList.trimToSize方法的具体用法？Java IntArrayList.trimToSize怎么用？Java IntArrayList.trimToSize使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类cern.colt.list.IntArrayList的用法示例。
在下文中一共展示了IntArrayList.trimToSize方法的7个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: setQuick
import cern.colt.list.IntArrayList; //导入方法依赖的package包/类
/**
* Sets the matrix cell at coordinate <tt>[row,column]</tt> to the specified value.
*
* <p>Provided with invalid parameters this method may access illegal indexes without throwing any exception.
* <b>You should only use this method when you are absolutely sure that the coordinate is within bounds.</b>
* Precondition (unchecked): <tt>0 <= column < columns() && 0 <= row < rows()</tt>.
*
* @param row the index of the row-coordinate.
* @param column the index of the column-coordinate.
* @param value the value to be filled into the specified cell.
*/
public void setQuick(int row, int column, double value) {
int i=row;
int j=column;
int k=-1;
IntArrayList indexList = indexes[i];
if (indexList != null) k = indexList.binarySearch(j);
if (k>=0) { // found
if (value==0) {
DoubleArrayList valueList = values[i];
indexList.remove(k);
valueList.remove(k);
int s = indexList.size();
if (s>2 && s*3 < indexList.elements().length) {
indexList.setSize(s*3/2);
indexList.trimToSize();
indexList.setSize(s);
valueList.setSize(s*3/2);
valueList.trimToSize();
valueList.setSize(s);
}
}
else {
values[i].setQuick(k,value);
}
}
else { // not found
if (value==0) return;
k = -k-1;
if (indexList == null) {
indexes[i] = new IntArrayList(3);
values[i] = new DoubleArrayList(3);
}
indexes[i].beforeInsert(k,j);
values[i].beforeInsert(k,value);
}
}
示例2: ObjectProcedure
import cern.colt.list.IntArrayList; //导入方法依赖的package包/类
/**
Constructs and returns a new <i>selection view</i> that is a matrix holding the cells matching the given condition.
Applies the condition to each cell and takes only those cells where <tt>condition.apply(get(i))</tt> yields <tt>true</tt>.
<p>
<b>Example:</b>
<br>
<pre>
// extract and view all cells with even value
matrix = 0 1 2 3
matrix.viewSelection(
new ObjectProcedure() {
public final boolean apply(Object a) { return a % 2 == 0; }
}
);
-->
matrix == 0 2
</pre>
For further examples, see the <a href="package-summary.html#FunctionObjects">package doc</a>.
The returned view is backed by this matrix, so changes in the returned view are reflected in this matrix, and vice-versa.
@param condition The condition to be matched.
@return the new view.
*/
public ObjectMatrix1D viewSelection(cern.colt.function.ObjectProcedure condition) {
IntArrayList matches = new IntArrayList();
for (int i=0; i < size; i++) {
if (condition.apply(getQuick(i))) matches.add(i);
}
matches.trimToSize();
return viewSelection(matches.elements());
}
示例3: DoubleProcedure
import cern.colt.list.IntArrayList; //导入方法依赖的package包/类
/**
Constructs and returns a new <i>selection view</i> that is a matrix holding the cells matching the given condition.
Applies the condition to each cell and takes only those cells where <tt>condition.apply(get(i))</tt> yields <tt>true</tt>.
<p>
<b>Example:</b>
<br>
<pre>
// extract and view all cells with even value
matrix = 0 1 2 3
matrix.viewSelection(
new DoubleProcedure() {
public final boolean apply(double a) { return a % 2 == 0; }
}
);
-->
matrix == 0 2
</pre>
For further examples, see the <a href="package-summary.html#FunctionObjects">package doc</a>.
The returned view is backed by this matrix, so changes in the returned view are reflected in this matrix, and vice-versa.
@param condition The condition to be matched.
@return the new view.
*/
public DoubleMatrix1D viewSelection(cern.colt.function.DoubleProcedure condition) {
IntArrayList matches = new IntArrayList();
for (int i=0; i < size; i++) {
if (condition.apply(getQuick(i))) matches.add(i);
}
matches.trimToSize();
return viewSelection(matches.elements());
}
示例4: DoubleMatrix2DProcedure
import cern.colt.list.IntArrayList; //导入方法依赖的package包/类
/**
Constructs and returns a new <i>selection view</i> that is a matrix holding all <b>slices</b> matching the given condition.
Applies the condition to each slice and takes only those where <tt>condition.apply(viewSlice(i))</tt> yields <tt>true</tt>.
To match rows or columns, use a dice view.
<p>
<b>Example:</b>
<br>
<pre>
// extract and view all slices which have an aggregate sum > 1000
matrix.viewSelection(
new DoubleMatrix2DProcedure() {
public final boolean apply(DoubleMatrix2D m) { return m.zSum > 1000; }
}
);
</pre>
For further examples, see the <a href="package-summary.html#FunctionObjects">package doc</a>.
The returned view is backed by this matrix, so changes in the returned view are reflected in this matrix, and vice-versa.
@param condition The condition to be matched.
@return the new view.
*/
public DoubleMatrix3D viewSelection(DoubleMatrix2DProcedure condition) {
IntArrayList matches = new IntArrayList();
for (int i=0; i < slices; i++) {
if (condition.apply(viewSlice(i))) matches.add(i);
}
matches.trimToSize();
return viewSelection(matches.elements(), null, null); // take all rows and columns
}
示例5: ObjectMatrix2DProcedure
import cern.colt.list.IntArrayList; //导入方法依赖的package包/类
/**
Constructs and returns a new <i>selection view</i> that is a matrix holding all <b>slices</b> matching the given condition.
Applies the condition to each slice and takes only those where <tt>condition.apply(viewSlice(i))</tt> yields <tt>true</tt>.
To match rows or columns, use a dice view.
<p>
<b>Example:</b>
<br>
<pre>
// extract and view all slices which have an aggregate sum > 1000
matrix.viewSelection(
new ObjectMatrix2DProcedure() {
public final boolean apply(ObjectMatrix2D m) { return m.zSum > 1000; }
}
);
</pre>
For further examples, see the <a href="package-summary.html#FunctionObjects">package doc</a>.
The returned view is backed by this matrix, so changes in the returned view are reflected in this matrix, and vice-versa.
@param condition The condition to be matched.
@return the new view.
*/
public ObjectMatrix3D viewSelection(ObjectMatrix2DProcedure condition) {
IntArrayList matches = new IntArrayList();
for (int i=0; i < slices; i++) {
if (condition.apply(viewSlice(i))) matches.add(i);
}
matches.trimToSize();
return viewSelection(matches.elements(), null, null); // take all rows and columns
}
示例6: DoubleMatrix1DProcedure
import cern.colt.list.IntArrayList; //导入方法依赖的package包/类
/**
Constructs and returns a new <i>selection view</i> that is a matrix holding all <b>rows</b> matching the given condition.
Applies the condition to each row and takes only those row where <tt>condition.apply(viewRow(i))</tt> yields <tt>true</tt>.
To match columns, use a dice view.
<p>
<b>Example:</b>
<br>
<pre>
// extract and view all rows which have a value < threshold in the first column (representing "age")
final double threshold = 16;
matrix.viewSelection(
new DoubleMatrix1DProcedure() {
public final boolean apply(DoubleMatrix1D m) { return m.get(0) < threshold; }
}
);
// extract and view all rows with RMS < threshold
// The RMS (Root-Mean-Square) is a measure of the average "size" of the elements of a data sequence.
matrix = 0 1 2 3
final double threshold = 0.5;
matrix.viewSelection(
new DoubleMatrix1DProcedure() {
public final boolean apply(DoubleMatrix1D m) { return Math.sqrt(m.aggregate(F.plus,F.square) / m.size()) < threshold; }
}
);
</pre>
For further examples, see the <a href="package-summary.html#FunctionObjects">package doc</a>.
The returned view is backed by this matrix, so changes in the returned view are reflected in this matrix, and vice-versa.
@param condition The condition to be matched.
@return the new view.
*/
public DoubleMatrix2D viewSelection(DoubleMatrix1DProcedure condition) {
IntArrayList matches = new IntArrayList();
for (int i=0; i < rows; i++) {
if (condition.apply(viewRow(i))) matches.add(i);
}
matches.trimToSize();
return viewSelection(matches.elements(), null); // take all columns
}
示例7: ObjectMatrix1DProcedure
import cern.colt.list.IntArrayList; //导入方法依赖的package包/类
/**
Constructs and returns a new <i>selection view</i> that is a matrix holding all <b>rows</b> matching the given condition.
Applies the condition to each row and takes only those row where <tt>condition.apply(viewRow(i))</tt> yields <tt>true</tt>.
To match columns, use a dice view.
<p>
<b>Example:</b>
<br>
<pre>
// extract and view all rows which have a value < threshold in the first column (representing "age")
final Object threshold = 16;
matrix.viewSelection(
new ObjectMatrix1DProcedure() {
public final boolean apply(ObjectMatrix1D m) { return m.get(0) < threshold; }
}
);
// extract and view all rows with RMS < threshold
// The RMS (Root-Mean-Square) is a measure of the average "size" of the elements of a data sequence.
matrix = 0 1 2 3
final Object threshold = 0.5;
matrix.viewSelection(
new ObjectMatrix1DProcedure() {
public final boolean apply(ObjectMatrix1D m) { return Math.sqrt(m.aggregate(F.plus,F.square) / m.size()) < threshold; }
}
);
</pre>
For further examples, see the <a href="package-summary.html#FunctionObjects">package doc</a>.
The returned view is backed by this matrix, so changes in the returned view are reflected in this matrix, and vice-versa.
@param condition The condition to be matched.
@return the new view.
*/
public ObjectMatrix2D viewSelection(ObjectMatrix1DProcedure condition) {
IntArrayList matches = new IntArrayList();
for (int i=0; i < rows; i++) {
if (condition.apply(viewRow(i))) matches.add(i);
}
matches.trimToSize();
return viewSelection(matches.elements(), null); // take all columns
}