我想制作一个Java程序来计算我要上传的数据的P值,但是这样做太麻烦了。 Java程序已经读取了数据,但下一步是解决获取p值的数据。
输入文件是:
The input Should be:-
Name A B C
a 1.7085586 0.73179674 3.3962722
b 0.092749596 -0.10030079 -0.47453594
c 1.1727467 0.15784931 0.0572958
d -0.91714764 -0.62808895 -0.6190882
e 0.34570503 0.10605621 0.30304766
f 2.333506 -0.2063818 0.4022169
g 0.7893815 1.449388 1.5907407
And the Output should be like this:-
Name pValue
a 0.129618298
b 0.4363544
c 0.323631285
d 0.017916658
e 0.076331828
f 0.385619995
g 0.035449488

我在R程序中运行了这些数据,但我想编写一些Java来解决这个问题。
我的Java代码到现在为止:
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
public class Abc {
public static void main(String[] args) {
// TODO Auto-generated method stub
BufferedReader br = null;
try {
String sCurrentLine;
br = new BufferedReader(new FileReader("C:/Documents and Settings/Admin/Desktop/test.txt"));
while ((sCurrentLine = br.readLine()) != null) {
System.out.println(sCurrentLine);
//output = BufferedReader.getParser().getAsDoubleArray("br");
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (br != null)br.close();
} catch (IOException ex) {
ex.printStackTrace();
}
}
}
}

这只是读取我的数据并在Java的控制台中显示它。怎么办?
答案 0 :(得分:1)
我认为您在从文件中检索和打印值时遇到问题。以下程序以所需格式提供输出:
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
public class Abc {
public static void main(String[] args) {
BufferedReader br = null;
String sCurrentLine;
try {
br = new BufferedReader(new FileReader("C:/Documents and Settings/Admin/Desktop/test.txt"));
// Override Default Header Row
br.readLine();
System.out.println("Name" + "\t" + "pValue");
while ((sCurrentLine = br.readLine()) != null) {
int i = 0;
String str[] = sCurrentLine.split("\t");
System.out.print(str[i] + "\t");
Double dValue1 = Double.parseDouble(str[++i]);
Double dValue2 = Double.parseDouble(str[++i]);
Double dValue3 = Double.parseDouble(str[++i]);
// Do pValue Calc here
Double pValue = 1.2334;
System.out.println(pValue);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (br != null)
br.close();
} catch (IOException ex) {
ex.printStackTrace();
}
}
}
}