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Hi, i tried to port a kmeans algorithm from python to php using your numpy like library.
Somehow I do not fully understand how to operate matrices correctly using your lib.
Are the Parameters axis, keepdims of sum compatible to numpy?
Can you help me get this code running with your lib? I put the Python version into comments.

function kmeans(NdArray $X, $K, $maxIter = 20, $beta = 1.0){
    list($N, $D) = $X->shape;

    $R          = np::zeros($N, $K); // Responsibility Matrix
    $exponents  = np::nulls($N, $K); // Exponents

    // initialize M with random values of X
    $M = randomize($X, $K, $N);


    for($i=0; $i< $maxIter; $i++){
        // step 1: determine assignments / resposibilities
        for($k=0; $k < $K; $k++){
            for($n=0; $n < $N; $n++){

                // Python:  exponents[n,k] = np.exp(-beta*d(M[k], X[n]))
                $exponents[$n][$k] = np::exp(-$beta * distance($M[$k], $X[$n]));

                // Python: R = exponents / exponents.sum(axis=1, keepdims=True)
                $R = $exponents->divide($exponents->sum());
            }
        }

        // step 2: recalculate means
        for($k=0; $k < $K; $k++){

            // Python: M = R.T.dot(X) / R.sum(axis=0, keepdims=True).T
            $M[$k] = np::transpose($R)->dot($X)->divide(np::transpose($R->sum()));
        }
    }

    echo $M; die;
}

function randomize(NdArray $X, $K, $N)
{
    $randomMeans = [];
    for($k=0;$k < $K; $k++){
        $randomMeans[$k] = $X[rand(0, $N-1)]->data;
    }
    return np::ar($randomMeans);
}

Hello again,
I Was doing my exercise using this great library and I needed random class. The class is missing and I've written some function.
I Want to know if you're working on this feature, if not yet, I can suggest my tiny functions( they use php native rand function )
-random::rand()
-random::randn()
-random::randint()
-random::randrange()
-random::choice()
-random::normal()
-random::shuffle()
(I used numpy as reference, so these method are numpy like)
Due to some difficulties, I can make a commit on github now.
I'm adapting my random class to the lib now. After finishing ( to adapt it) I can send you a link if possible to check them.
Bon weekend à vous!

Hi,
I 'm trying to implant a RNN class in php originally written in python.
I've tried to implant some basic np.random class functions but I have A Problem when I Try use the library.
i don't know which method is causing this, here is exception message:

Fatal error: Uncaught InvalidArgumentException: Expected a value between 0 and 0. Got: 1 in /home/htdocs/ai/numphp/webmozart/assert/src/Assert.php:2042 Stack trace:
#0 /home/htdocs/ai/numphp/webmozart/assert/src/Assert.php(922): Webmozart\Assert\Assert::reportInvalidArgument
('Expected a valu...') #1 /home/htdocs/ai/numphp/sciphp/numphp/src/SciPhp/NdArray/IndexTrait.php
(231): Webmozart\Assert\Assert::range(1, 0, 0) #2 /home/htdocs/ai/numphp/sciphp/numphp/src/SciPhp/NdArray/IndexTrait.php
(126): SciPhp\NdArray\Decorator->filterRange(Array, 0, 1) #3 /home/htdocs/ai/numphp/sciphp/numphp/src/SciPhp/NdArray/IndexTrait.php
(65): SciPhp\NdArray\Decorator->filterSet(Array, 0, Array, 1) #4 /
home/htdocs/ai/zeroml/rnn in
/home/htdocs/ai/numphp/webmozart/assert/src/Assert.php
on line 2042

I'm using these method np::argmax(), np::log(), np::exp(), np::sum(), np::tanh(), np::dot(), np::max()
and I Didn't find which among them throw this excption.
sorry for my bad english, I Speak frend

Can you fix the site, or upload the docs to git so they're still readable?