Hi. [Please add a "[Math]" marker in the subject line of posts about the Commons Math project; this will raise the likelihood that the right people will notice your message.]
On Tue, Mar 15, 2011 at 04:36:53PM +0800, Thomas Anderson wrote: > When using NormalDistributionImpl calss, I encounter the error throwing > message > > org.apache.commons.math.ConvergenceException: maximum number of > iterations reached > at > org.apache.commons.math.special.Gamma.regularizedGammaP(Gamma.java:176) > at org.apache.commons.math.special.Erf.erf(Erf.java:52) > at > org.apache.commons.math.distribution.NormalDistributionImpl.cumulativeProbability(NormalDistributionImpl.java:105) > at mypackage.Myclass.add(Myclass.java:109) > at mypackage.Myclass.$Msger.call(Myclass.java:69) > at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) > at java.util.concurrent.FutureTask.run(FutureTask.java:138) > at > java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:98) > at > java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:206) > at > java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) > at java.lang.Thread.run(Thread.java:662) > > The value provided in cumulativeProbability is a double of current > time subtracting previous timestamped e.g. t_now - t_prev > > What might cause this issue or how to fix it? > I don't know, but a good staring point would be to provide a fully working unit test that demonstrates the problem, and attach it to a new issue in the project's bug tracking page: https://issues.apache.org/jira Thanks and best regards, Gilles --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
