我已经在Python中建立了XGB模型，以根据各种变量预测零件的价格。我怎样才能预测一个零件的价格？

Question

我已经在Python中建立了XGBoost模型，以便根据各种变量预测零件的价格。该模型相当准确，准确率为91％。

如何通过手动输入不同于数据集的值来预测一个零件的价格？我想传递所有变量的值，然后预测该零件的价格。

private static String filepath = "...............";

public static void main(String[] args) {

    String tmpFileName = "tmp.dat";

    BufferedReader br = null;
    BufferedWriter bw = null;
    try {
        br = new BufferedReader(new FileReader(filepath));
        bw = new BufferedWriter(new FileWriter(tmpFileName));
        String line;
        while ((line = br.readLine()) != null) {
            line = workOnLine(line);
            bw.write(line+"\n");
        }
    } catch (Exception e) {
        return;
    } finally {
        try {
            if(br != null)
                br.close();
        } catch (IOException e) {
            //
        }
        try {
            if(bw != null)
                bw.close();
        } catch (IOException e) {
            //
        }
    }
    // Once everything is complete, delete old file..
    File oldFile = new File(filepath);
    oldFile.delete();

    // And rename tmp file's name to old file name
    File newFile = new File(tmpFileName);
    newFile.renameTo(oldFile);

}

private static String workOnLine(String line) {

    if (line.contains("Builder()")) {
        int builderIndex = line.indexOf("Builder()");
        String begin = line.substring(0, builderIndex);
        if (begin.contains("new ")) {
            int newIndex = begin.lastIndexOf("new ");
            begin = begin.substring(0, newIndex) + begin.substring(newIndex + 4);
            line = begin + ".builder" + line.substring(builderIndex + 7);
        } else {
            log.error("Builder with no new. Wtf ?");
        }
    }

    if (line.contains(".with")) {
        int withIndex = line.indexOf(".with");
        String startChar = line.substring(withIndex + 5, withIndex + 6);
        String replaceChar = startChar.toLowerCase();
        line = line.substring(0, withIndex) + "." + replaceChar + line.substring(withIndex + 6);
    }

    return line;
}

这是我在R中所做的，但是我想在Python中做同样的事情。谢谢。