Re: math: how to initialize a custom prob. distribution function
On Fri, 29 Sept 2023 at 18:49, Siddharth Jain wrote: > > thanks. i see this is filed under legacy namespace with the comment > Implementations > of common discrete and continuous distributions. [Mostly moved to the > "Commons Statistics" project (cf. JIRA: MATH-1443).] > i then checked > https://commons.apache.org/proper/commons-statistics/commons-statistics-distribution/apidocs/allclasses-noframe.html > but could not see this class there. should i still use commons-math? and > the 4.0-beta1 does not seem to be in maven repository. could i get link to > mvn coordinates if its published on maven? https://central.sonatype.com/artifact/org.apache.commons/commons-math4-legacy There are some distribution classes that remain in Commons Math as they use more math code than just the functions required to implement standard distributions. The legacy module contains most of what was in Commons Math 3. This is code that has not been refactored into modules within the modular Commons Math 4 layout, or undergone a complete rewrite as a new project (see Commons RNG, Numbers, Statistics and Geometry). Alex - To unsubscribe, e-mail: user-unsubscr...@commons.apache.org For additional commands, e-mail: user-h...@commons.apache.org
Re: math: how to initialize a custom prob. distribution function
thanks. i see this is filed under legacy namespace with the comment Implementations of common discrete and continuous distributions. [Mostly moved to the "Commons Statistics" project (cf. JIRA: MATH-1443).] i then checked https://commons.apache.org/proper/commons-statistics/commons-statistics-distribution/apidocs/allclasses-noframe.html but could not see this class there. should i still use commons-math? and the 4.0-beta1 does not seem to be in maven repository. could i get link to mvn coordinates if its published on maven? On Fri, Sep 29, 2023 at 10:10 AM Alex Herbert wrote: > This may be what you require: > > > https://commons.apache.org/proper/commons-math/javadocs/api-4.0-beta1/org/apache/commons/math4/legacy/distribution/EmpiricalDistribution.html > > You will have to convert your float values to double and then specify > the bin size: > > float[] x = ... > int bins = 100; > ContinuousDistribution d = EmpiricalDistribution.from(bins, > IntStream.range(0, x.length).mapToDouble(i -> x[i]).toArray()); > > On Fri, 29 Sept 2023 at 17:44, Siddharth Jain wrote: > > > > I have a vector float[] x containing samples of a random variable. I > would > > like to initialize a prob. distribution fn. using these samples and then > be > > able to call methods like > > > https://commons.apache.org/proper/commons-statistics/commons-statistics-distribution/apidocs/org/apache/commons/statistics/distribution/ContinuousDistribution.html > > > > I am looking for an API like: > > > > var f = ContinuousDistribution.of(x) > > > > is this available in commons-math? thanks. > > > > S. > > - > To unsubscribe, e-mail: user-unsubscr...@commons.apache.org > For additional commands, e-mail: user-h...@commons.apache.org > >
Re: math: how to initialize a custom prob. distribution function
This may be what you require: https://commons.apache.org/proper/commons-math/javadocs/api-4.0-beta1/org/apache/commons/math4/legacy/distribution/EmpiricalDistribution.html You will have to convert your float values to double and then specify the bin size: float[] x = ... int bins = 100; ContinuousDistribution d = EmpiricalDistribution.from(bins, IntStream.range(0, x.length).mapToDouble(i -> x[i]).toArray()); On Fri, 29 Sept 2023 at 17:44, Siddharth Jain wrote: > > I have a vector float[] x containing samples of a random variable. I would > like to initialize a prob. distribution fn. using these samples and then be > able to call methods like > https://commons.apache.org/proper/commons-statistics/commons-statistics-distribution/apidocs/org/apache/commons/statistics/distribution/ContinuousDistribution.html > > I am looking for an API like: > > var f = ContinuousDistribution.of(x) > > is this available in commons-math? thanks. > > S. - To unsubscribe, e-mail: user-unsubscr...@commons.apache.org For additional commands, e-mail: user-h...@commons.apache.org
math: how to initialize a custom prob. distribution function
I have a vector float[] x containing samples of a random variable. I would like to initialize a prob. distribution fn. using these samples and then be able to call methods like https://commons.apache.org/proper/commons-statistics/commons-statistics-distribution/apidocs/org/apache/commons/statistics/distribution/ContinuousDistribution.html I am looking for an API like: var f = ContinuousDistribution.of(x) is this available in commons-math? thanks. S.
