On 11/24/15 7:11 AM, sebb wrote:
> On 24 November 2015 at 13:52, Phil Steitz <[email protected]> wrote:
>> I need the following methods to complete the fix for MATH-1246. I
>> can add them as private methods to the KS class; but they seem
>> generally useful, so I propose adding them to MathArrays. Any
>> objections?
>>
>> /**
>> * Concatenates two arrays.
>> *
>> * @param x first array
>> * @param y second array
>> * @return a new array consisting of the entries of x followed by
>> the entries of y
>> * @throws NullPointerException if either x or y is null
>> */
>> public static double[] concat(double[] x, double[] y)
> Could perhaps take a list?
You mean what Gilles suggested?
Phil
>
>> /**
>> * Returns an array consisting of the unique values in {@code data}.
>> * The return array is sorted in descending order.
>> *
>> * @param data
>> * @return descending list of values included in the input array
>> */
>> public static double[] values(double[] data)
> The name gives no hint that the output is unique.
> IMO it should be renamed to reflect that.
>
> [The sort order seems to be a byproduct of the algorithm used, so is
> not particularly relevant to the name]
>
>> /**
>> * Adds random jitter to {@code data} using deviates sampled from
>> {@code dist}.
>> * <p>
>> * Note that jitter is applied in-place - i.e., the array
>> * values are overwritten with the result of applying jitter.</p>
>> *
>> * @param data input/output data array
>> * @param dist probability distribution to sample for jitter values
>> * @throws NullPointerException if either of the parameters is null
>> */
>> public static void jitter(double[] data, RealDistribution dist)
>>
>>
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