Install PHP package

[vivis933]

Hi i need THIS package to install on windows using composer but im new here can some one help me.

 

[Jacques1]

So what's your question?

 

Note that the library hasn't been released yet (and probably never will), so all you can get with composer is the latest stage of development:

composer require kachkaev/php-r dev-master

The library also isn't compatible with PHP 7, so if you plan to do an update in the near future, that's a problem.

 

I'd look for an alternative.

[requinix]

That code is basically just a fancy wrapper around proc_open. If all you need to do is simply run code/a file then it's, like, 15 lines of PHP to do so...

[Jacques1]

There's an R TCP/IP server and an actively maintained client for PHP which takes care of the low-level stuff (parsing etc.).

[vivis933]

Thank you for the reply , I need the to integrate the r code in php to make possession distribution for some data in database(mysql) sow i was searching for it and im not satisfied with the results , when i tried to install this library i got to much errors . If some one have a suggestion how to make a possession distribution in php with or without an external library please help me. 

[Jacques1]

We've proposed three different solutions. So what exactly is wrong with those?

 

And as a fourth option, PHP has a statistics extension with a function for calculating the Poisson distribution.

[vivis933]

@jacques1 thank you i was using excel for the possession distribution and the formula is this POISSON.DIST(x,mean,cumulative) 

• X     Required. The number of events.

• Mean     Required. The expected numeric value.

• Cumulative     Required. A logical value that determines the form of the probability distribution returned. If cumulative is TRUE, POISSON.DIST returns the cumulative Poisson probability that the number of random events occurring will be between zero and x inclusive; if FALSE, it returns the Poisson probability mass function that the number of events occurring will be exactly x.

Sow in the example you prepossessed can you tell me which values present the x, mean and cumulative.

[Jacques1]

It's Poisson distribution, not “possession distribution”.

 

Sow in the example you prepossessed can you tell me which values present the x, mean and cumulative.

 

The source code.

[vivis933]

for($x= 0 ; $x<= 10 ; $x++) {
$e = (poisson($x+1,2.5) * poisson(0,3.5))*100;

echo $e . "\n";

}

I make this code from the poisson distribution and ercho return this

 

0.61968804416659

0.77461005520824

0.6455083793402

0.40344273708762

0.20172136854381

0.084050570226588

0.03001806079521

0.0093806439985032

0.0026057344440287

0.00065143361100716

0.00014805309341072

 

 

How i can get the sum of all those numbers? I tryed to make the variable to array and to use sum_array bur it doesent give the correct resul

for($x= 0 ; $x<= 10 ; $x++) {
$e = array((poisson($x+1,2.5) * poisson(0,3.5))*100);

}
echo array_sum($e) . "\n";

echo return 0.00014805309341072

[requinix]

$e = array((poisson($x+1,2.5) * poisson(0,3.5))*100);

That puts one value into an array and assigns it to $e. Over and over and over again. What it does not do is append the value into the array that is already in $e.

 

While you could fix the code to append to arrays properly, don't. Wouldn't it be much simpler to just sum the values as you go?

 

Set $e to 0 before the loop, then inside the loop add each value to it.

[vivis933]

Thank you i fixed it 

$e = array();
for($x= 0 ; $x<= 10 ; $x++) {
array_push($e, (poisson($x+1,2.5) * poisson(0,3.5))*100);

}
echo array_sum($e) . "\n";

[vivis933]

It is possible in the second variable the loop for x to go til 9 not 10 starting from 0 not -1

$e = array();
for($x= 0 ; $x<= 10 ; $x++) {
array_push($e, 
(poisson($x,2.5) * poisson(0,3.5))*100,
(poisson($x,2.5) * poisson(1,3.5))*100)///<--second variable
);

}
echo array_sum($e) . "\n";

i add $x-1

$e = array();
for($x= 0 ; $x<= 10 ; $x++) {
array_push($e,
(poisson($x,2.5) * poisson(0,3.5))*100,
(poisson($x-1,2.5) * poisson(1,3.5))*100)///<--second variable
);

}
echo array_sum($e) . "\n";

[vivis933]

I tryed with this but i get 8 values insteed 7

<?php

$e = array();
for($x= 0 , $x1= 0;
$x<= 3 || $x1<= 2;
$x++ , $x1++
) {
array_push($e,
(poisson($x,2.5) * poisson(0,3.5))*100,
(poisson($x1,2.5) * poisson(1,3.5))*100///<--second variable
);

}
//echo array_sum($e) . "\n";
print_r($e) . "\n";

?>

Array

(

    [0] => 0.24787521766664

    [1] => 0.86756326183323

    [2] => 0.61968804416659

    [3] => 2.1689081545831

    [4] => 0.77461005520824

    [5] => 2.7111351932288

    [6] => 0.6455083793402

    [7] => 2.2592793276907

)

 

 

 

[ginerjm]

Per the manual, this operates as written.  Check it out.