apache-commons-math Questions

5

Solved

I have been looking for away to generate bins for specific dataset (by specifying lower band, upper band and number of bins required) using apache common math 3.0. I have looked at Frequency http:/...
Twi asked 28/5, 2012 at 14:42

2

I'm using apache-commons-math RealMatrix on my project to handle matrix operations, however I can't print it with proper formatting. For every matrix i have so far it goes like this: double coord[]...
Flummery asked 3/4, 2018 at 0:49

2

I am trying to import common-math library to my Android Studio project. I placed the file commons-math3-3.6.1.jar file in libs folder and in the gradle file I have this line: compile 'commons-mat...
Store asked 18/6, 2016 at 0:57

1

I need to estimate the shape and scale parameters of a Weibull distribution from a sample data using MLE. I checked the WeibullDistribution class of Apache commons Math but it doesn't have such fun...
Statfarad asked 12/12, 2017 at 18:50

3

I'm using commons-math 3.6.1. I need to round a double value to 2 decimal Let's assume this is my double value: double d = 400.54540997260267; Now by rounding this number I was expecting as r...
Taxicab asked 31/7, 2017 at 7:18

2

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I want to improve the accuracy of my indoor positioning framework and therefore apply the kalmanfilter. I found that the apache commons math library supports Kalmanfilter so I tried to use it and f...

2

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As a current task, I need to calculate eigenvalues and eigenvectors for a 120*120 matrix. For start, I tested those calculations on a simple 2 by 2 matrix in both Java (Apache Commons Math library)...
Psychosomatic asked 15/11, 2016 at 13:6

6

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I am trying to build a system for which I need to find a solution to a set of linear equations with (much) more variables than equations. The problem boils down to the following: Imagine a set o...
Quartus asked 6/8, 2016 at 13:27

1

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I'm trying to implement some Interpolation functions to plot some values where the X value = Date.seconds and the Y value = double. I'v been researching using the Apache Commons Math lib to achiev...
Changeable asked 9/4, 2016 at 22:19

1

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I am trying to solve the following linear problem by using the Simplex solver from apache-commons: org.apache.commons.math3.optim.linear.SimplexSolver. n is the number of rows m is the number of...

2

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I am computing the SD of a vector using Apache Commons Math. The problem: I get different values than by hand DescriptiveStatistics stats = new DescriptiveStatistics(); stats.addValue(value1); ......
Goran asked 9/3, 2013 at 1:41

2

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I have a set of benchmark data for which I compute summary statistics using Apache Math Commons. Now I want to use the package to compute confidence intervals for the arithmetic means of e.g. runni...
Cotquean asked 6/4, 2011 at 10:7

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I'm trying to compute the convert a R script to java using the apache.commons.math library. Can I use org.apache.commons.math.analysis.interpolation.LoessInterpolator in place of R loess ? I cannot...
Leader asked 3/10, 2012 at 8:32

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I want to compute the mean of a stream of doubles. This is a simple task that only requires storing a double and an int. I was doing this using the apache commons SummaryStatistics class. However, ...
Geostrophic asked 20/2, 2014 at 20:20

1

I've been searching for a way to calculate the percentile rank for every value in a given list and I've been unsuccessful thus far. org.apache.commons.math3 gives you a way to fetch the pth percen...
Leitman asked 9/12, 2013 at 21:0

0

I'm looking for suggestions regarding a third-party library to use for statistical analysis on numbers encoded in BigDecimal / BigInteger. Apache commons-math contains all the ideal functionality ...
Arzola asked 12/11, 2013 at 12:37

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I have a problem where I want to generate a set of random integer values between 1 and 5 inclusive using a probability distribution. Poisson and Inverse Gamma are two distributions that show the ...
Cryogen asked 8/5, 2013 at 8:8

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I am looking for a package that provides mathematical functions for the non-symmetrical (skewed) normal distribution and also the poisson and exponential distributions. I originally looked at the ...
Parmenides asked 13/11, 2012 at 14:31

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I'm trying to do an exponential fit on various points (x,y) with the formula A*EXP(-BX), trying to find A and B that best suit my points. double[] xx = curveFitter.fit(new ParametricUnivariateFunc...
Disuse asked 29/10, 2012 at 17:38
1

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