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Separating array in other arrays


Separating array in other arrays

By : user2955489
Date : November 22 2020, 10:40 AM
I wish did fix the issue. I have an array that I need to split in different arrays. I have an array of Strings and need to split it in different pages (different arrays). , The error probably occurs in this line:
code :
Arrays.copyOfRange(array,(0+10*(pageSelected-1),10*10+(pageSelected-1)));
Arrays.copyOfRange(array,10*(pageSelected-1),10*10+(pageSelected-1));
Arrays.copyOfRange(array,10*(pageSelected-1),10+10*(pageSelected-1));
int i = pageSelected-1;
int g = 10*i;
Arrays.copyOfRange(array,g,g+10);//do something with the result
int i = pageSelected-1;
int perpage = 10;
int g = perpage*i;
Arrays.copyOfRange(array,g,g+perpage);//do something with the result
int numberOfPages = (int) Math.ceil((double) size/perpage);


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Separating array rows into other arrays based on key name

Separating array rows into other arrays based on key name


By : user2759959
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further I have an array like this , This seems to work:
code :
$rows = array(
        array(
            'fruit.name' => 'Apple',
            'fruit.colour' => 'Red',
            'fruit.weight' => '0.1',
            'vegetable.name' => 'Carrot',
            'vegetable.colour' => 'Orange',
            'vegetable.weight' => '0.05'
        ),
        array(
            'fruit.name' => 'Banana',
            'fruit.colour' => 'Yellow',
            'fruit.weight' => '0.7',
            'vegetable.name' => 'Potato',
            'vegetable.colour' => 'Brown',
            'vegetable.weight' => '0.6'
        )
    );


    $fruits = $vegs = array();
    foreach ($rows as $arrays) {

        $fruit = array();
        $veg = array();
        foreach ($arrays as $key => $val) {

            $index = substr($key, strpos($key, ".") + 1);   

            if('fruit' == substr($key, 0, strpos($key, '.'))){

                $fruit[$index] = $val;
            } else {
                $veg[$index] = $val;
            }
        }

        $fruits[] = $fruit;
        $vegs[] = $veg;
    }
     var_dump($fruits, $vegs);
Separating a given sentence thats in an array to words in separate arrays

Separating a given sentence thats in an array to words in separate arrays


By : AVK
Date : March 29 2020, 07:55 AM
will be helpful for those in need I assume your string is always delimited by spaces. In the loop (lower bound = 0, upper bound = strlen() -1 ) search for spaces and maintain the index of the last non-space character so that when you find a space (using strchr) you will have a beginning and ending index to use in strcpy.
Separating 3-d array into 2-d arrays along the respective columns

Separating 3-d array into 2-d arrays along the respective columns


By : httpdream
Date : March 29 2020, 07:55 AM
wish helps you , use tempObj[:, 0, :] and tempObj[:, 1, :]. here is an example:
code :
import numpy as np
tempObj = np.array([
    [
        [1,5], [2,7], [3,8], [4,4],
        [6, 5], [4, 7], [13, 8], [9, 4]
    ],

    [
        [21,25], [22,72], [32,82], [34,43],
        [64, 54], [44, 74], [1443, 48], [94, 44]
    ],
    [
        [211, 215], [212, 712], [312, 812], [314, 413],
        [614, 514], [414, 714], [11443, 148], [194, 414]
    ]

])

# Your code:
############################################
temp1 = tempObj[0][0]
temp2 = tempObj[0][1]
if len(tempObj) > 1:
    for i in range(1, len(tempObj)):
        temp1 = np.vstack((temp1, tempObj[i][0]))
        temp2 = np.vstack((temp2, tempObj[i][1]))
print(temp1)
print(temp2)

# my suggestion
############################################
print(tempObj[:, 0, :])
print(tempObj[:, 1, :])
tempObj = [
    np.array([
        [1,5], [2,7], [3,8], [4,4],
        [6, 5], [4, 7], [13, 8], [9, 4]
    ]),
    np.array([
        [21,25], [22,72], [32,82], [34,43],
        [64, 54], [44, 74], [1443, 48], [94, 44]
    ]),
    np.array([
        [211, 215], [212, 712], [312, 812], [314, 413],
        [614, 514], [414, 714], [11443, 148], [194, 414]
    ])
]
C# Separating An Array Into Multiple Smaller Arrays (Randomly)

C# Separating An Array Into Multiple Smaller Arrays (Randomly)


By : Jeeban
Date : March 29 2020, 07:55 AM
will help you I am making a DISCORD.NET BOT for my friends and I in c# and this is my first time using this language (I work with VB.NET but the syntax is entirely new to me here). , I will do it like this:
code :
var usersArray = new string[] { "1", "2", "3", "4", "5", "6", "7" };
var r = new Random();
usersArray = usersArray.OrderBy(i => r.Next()).ToArray();
var firstGroup = usersArray.Take(3).ToArray();
var secondGroup = usersArray.Skip(3).Take(4).ToArray();
Separating an array into 5 different arrays depending on an argument

Separating an array into 5 different arrays depending on an argument


By : fffmonkeyking
Date : March 29 2020, 07:55 AM
To fix this issue Why not use STL? For example std::vector would do a great job against this:
code :
for(int i = 0; i < 100; i++){
    grades[i] = rand() % 100 + 1;  
}

std::vector<int> gradeA, gradeB, gradeC, gradeD, gradeE;
for(int i = 0; i < 100; i++){
    if (grades[i]>=90)
        gradeA.push_back(grades[i]);
    else if (grades[i]>=70)
        gradeB.push_back(grades[i]);
    else if (grades[i]>=50)
        gradeC.push_back(grades[i]);
    else if (grades[i]>=20)
        gradeD.push_back(grades[i]);
    else
        gradeE.push_back(grades[i]);
}
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