3-weka.filters.unsupervised.attribute.Normalize

使用weka API 对数据进行规范化处理

DataSource source = null;
        Instances instances = null;
        try {
            source = new DataSource(fileName);
            instances = source.getDataSet();
            instances.setClassIndex(instances.numAttributes()-1);
            //对数据进行规范化
            Normalize norm = new Normalize();
            norm.setScale(1.0);
            norm.setTranslation(0.0);
            norm.setIgnoreClass(true);
            norm.setInputFormat(instances);
            instances = Filter.useFilter(instances, norm);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return instances;