I'd love to use EnumeratedIntegerDistribution()
from org.apache.commons.math3.distribution
, to get discrete probabilities distribution
int[] nums_to_generate = new int[] { -1, 1, 0 };
double[] discrete_probabilities = new double[] { 0.4, 0.4, 0.2 };
I'm working wiht jdk7 , on windows Xp, running from Command Line
I do:
add to my source file
import org.apache.commons.math3;
compile my source with the classpath: (either)
javac -cp ./commons-math3-3.2/commons-math3-3.2.jar:. ConflictsAnimation.java
javac -cp commons-math3-3.2/commons-math3-3.2.jar ConflictsAnimation.java
Still I've got a mysterious
"error: package org.apache.commons does not exist"
Who knows what happens ? I really need a help.
Note:
compilation (and run) is OK without the classpath and without the import of "apache" and call to numeratedIntegerDistribution().
compilation with the classpath and without the "appache"s give nonsense errors.
Thanks a lot in advance for your great skills, the programmers!
import java.lang.Math.*;
import org.apache.commons.math3;
public class CheckMe {
public CheckMe() {
System.out.println("let us check it out");
System.out.println(generate_rand_distribution (10));
}
private static int[] generate_rand_distribution (int count){
int[] nums_to_generate = new int[] { -1, 1, 0 };
double[] discrete_probabilities = new double[] { 0.4, 0.4, 0.2 };
int[] samples = null;
EnumeratedIntegerDistribution distribution =
new EnumeratedIntegerDistribution(nums_to_generate, discrete_probabilities);
samples = distribution.sample (count);
return (samples);
}
public static void main (String args[]) {
System.out.println("Main: ");
CheckMe animation = new CheckMe();
}
}
This is the problem:
import org.apache.commons.math3;
That's trying to import a package - you can't do that. You have to either use a wildcard import:
import org.apache.commons.math3.*;
or import a specific type:
import org.apache.commons.math3.SomeTypeHere;
In your case it sounds like you actually want:
import org.apache.commons.math3.distribution.EnumeratedIntegerDistribution;
I've tried a sample class with just that import and the jar file downloaded from Apache, and it works fine.
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