本文整理汇总了Java中smile.projection.PCA.setProjection方法的典型用法代码示例。如果您正苦于以下问题：Java PCA.setProjection方法的具体用法？Java PCA.setProjection怎么用？Java PCA.setProjection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smile.projection.PCA的用法示例。
在下文中一共展示了PCA.setProjection方法的2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: learn
import smile.projection.PCA; //导入方法依赖的package包/类
public JComponent learn() {
JPanel pane = new JPanel(new GridLayout(1, 2));
PCA pca = new PCA(data);
pca.setProjection(50);
double[][] X = pca.project(data);
long clock = System.currentTimeMillis();
TSNE tsne = new TSNE(X, 2, perplexity, 200, 1000);
System.out.format("Learn t-SNE from %d samples in %dms\n", data.length, System.currentTimeMillis() - clock);
double[][] y = tsne.getCoordinates();
PlotCanvas plot = new PlotCanvas(Math.colMin(y), Math.colMax(y));
for (int i = 0; i < y.length; i++) {
plot.point(pointLegend, Palette.COLORS[labels[i]], y[i]);
}
plot.setTitle("tSNE");
pane.add(plot);
return pane;
}
示例2: learn
import smile.projection.PCA; //导入方法依赖的package包/类
@Override
public JComponent learn() {
double[][] data = dataset[datasetIndex].toArray(new double[dataset[datasetIndex].size()][]);
String[] names = dataset[datasetIndex].toArray(new String[dataset[datasetIndex].size()]);
if (names[0] == null) {
names = null;
}
boolean cor = corBox.getSelectedIndex() != 0;
long clock = System.currentTimeMillis();
PCA pca = new PCA(data, cor);
System.out.format("Learn PCA from %d samples in %dms\n", data.length, System.currentTimeMillis()-clock);
JPanel pane = new JPanel(new GridLayout(1, 2));
PlotCanvas scree = PlotCanvas.screeplot(pca);
scree.setTitle("Variance");
pane.add(scree);
pca.setProjection(3);
double[][] y = pca.project(data);
PlotCanvas plot = new PlotCanvas(Math.colMin(y), Math.colMax(y));
if (names != null) {
plot.points(y, names);
} else if (dataset[datasetIndex].responseAttribute() != null) {
int[] labels = dataset[datasetIndex].toArray(new int[dataset[datasetIndex].size()]);
for (int i = 0; i < y.length; i++) {
plot.point(pointLegend, Palette.COLORS[labels[i]], y[i]);
}
} else {
plot.points(y, pointLegend);
}
plot.setTitle("Scatter Plot");
pane.add(plot);
return pane;
}