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Posted to user@commons.apache.org by Jim Largent <je...@gmail.com> on 2006/09/17 22:15:20 UTC

Commons Math

I installed the Commons math library and used the example code shown below:
// Get a DescriptiveStatistics instance using factory method
DescriptiveStatistics stats = DescriptiveStatistics.newInstance();

// Add the data from the array
for( int i = 0; i < inputArray.length; i++) {
        stats.addValue(inputArray[i]);
}

// Compute some statistics
double mean = stats.getMean();
double std = stats.getStandardDeviation();
double median = stats.getMedian();


I get an error saying that the getMedian function is not found.  I saw that
the SummaryStatistics does not have the median.  Any insight on what I'm
missing?
Thanks

Re: Commons Math

Posted by Brent Worden <br...@gmail.com>.

Try stats.getPercentile(50), instead.

HTH,

Brent Worden

On 9/17/06, Jim Largent <je...@gmail.com> wrote:
>
> I installed the Commons math library and used the example code shown
> below:
> // Get a DescriptiveStatistics instance using factory method
> DescriptiveStatistics stats = DescriptiveStatistics.newInstance();
>
> // Add the data from the array
> for( int i = 0; i < inputArray.length; i++) {
>         stats.addValue(inputArray[i]);
> }
>
> // Compute some statistics
> double mean = stats.getMean();
> double std = stats.getStandardDeviation();
> double median = stats.getMedian();
>
>
> I get an error saying that the getMedian function is not found.  I saw
> that
> the SummaryStatistics does not have the median.  Any insight on what I'm
> missing?
> Thanks
>
>