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Java curve fitting library [closed]
(2 answers)
Closed 9 years ago.
Or any other function that could take several pairs as input and output the fitted curve or function in the format you want.
You should check out Commons Math from Apache Commons.
The Statistics package has a Class called SimpleRegression that may be helpful to you.
Check out the linear algebra and optimization functionality of the Apache Commons Math library. You probably want something that implements the DecompositionSolver interface.
Related
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How can I represent a range in Java?
(9 answers)
Closed 4 years ago.
I am looking for a Range API in JDK8 which also exports some static utilities , but no luck uptill now. I am working on a interval scheduling algorithm which needs one.If not I will work to create a custom interface .
I not sure, perhaps Google Guava has what you need:
https://github.com/google/guava/wiki/RangesExplained
or perhaps Google can help ;)
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Pseudorandom Number Generator - Exponential Distribution
(9 answers)
Java exponential distribution
(1 answer)
Closed 5 years ago.
I am given a mean of 5. I need to generate a random number (exponentially distributed) in Java.
I know for Python, you can just run something like random.expovariate(5), but I'm not sure how to solve this for Java. Can anyone help me out?
see here. What you are looking for is something like this:
public double getNext() {
return Math.log(1-rand.nextDouble())/(-lambda);
}
(code taken from here)
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Similarity String Comparison in Java
(12 answers)
Closed 8 years ago.
Is there any method to know the percentage of equality of two texts or Strings in Java?
An algorithm of how to implement such a method would be satisfactory, or just a light.
Thanks in advance.
Look at Levenshtein distance: http://en.wikipedia.org/wiki/Levenshtein_distance
For Java implementation from Apache commons Refer :
https://commons.apache.org/proper/commons-lang/apidocs/org/apache/commons/lang3/StringUtils.html#getLevenshteinDistance(java.lang.CharSequence,java.lang.CharSequence)
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What is the Java equivalent of Objective-C's NSDictionary?
(3 answers)
Closed 9 years ago.
As i have experience in iOS and newbie to Android development, i wqant to implement grouped tableview in Android.
Can anyone tell me what is the replacement of NSDictionary in android...
Many thanks in advance
NSDictionary is just a dictionary type; in Java these are called "Maps" instead. You can use any Map implementation to do the same thing, of which the normal "default choice" is HashMap.
This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
What is the Java equivalent of Objective-C's NSDictionary?
I've seen other answers but they seem to squabble over each other in terms of response.
I need to translate some Objective-C and I am using NSDictionary a lot. What should I try to use in Java for this ?
The best Java equivalent is a Map implementation specifically HashMap.