## How to get the minimum value from array row

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I trying to get the minimum values from the any column contains "xx" in the column name.

Below is my code:

```<?php
\$array = array(
array(
'id' => 1,
'10xx' => 14,
'11xx' => 32,
'12xx' => 4
),

array(
'id' => 2,
'10xx' => 13,
'11xx' => 36,
'12xx' => 41
)
);

foreach(\$array as \$item)
{
\$lowestKey = '';
foreach(\$item as \$key => \$value)
{

if(strpos(\$key, 'xx') === 0)
{

if(\$lowestKey == '')
{
\$lowestKey = \$key;
}
else
{
if(\$value < \$item[\$lowestKey])
{
\$lowestKey = \$key;
}
}
}
}

echo 'lowest for id ' . \$item['id'] . ': ' . \$item[\$lowestKey] . "\n";
}
?>
```

You have a function already for it:

http://php.net/manual/en/function.min.php

```echo min(2, 3, 1, 6, 7);  // 1
echo min(array(2, 4, 5)); // 2

echo min(0, 'hello');     // 0
echo min('hello', 0);     // hello
echo min('hello', -1);    // -1
```

Combine it with array_values if this fits better your needs.

How to get the minimum value from array row, If axis=1 then it returns an array containing min value for each row. Let's look in detail,. Find minimum value & it's index in a 1D Numpy Array: Let's� Get the array of indices of minimum value in numpy array using numpy.where () i.e. result = numpy.where(arr == numpy.amin(arr)) In numpy.where () when we pass the condition expression only then it returns a tuple of arrays (one for each axis) containing the indices of element that satisfies the given condition.

```function _getNumber(\$array) {
return \$array['id'];
}
\$numbers = array_map('_getNumber', \$array);
```

OR

```\$numbers = array_map(function(\$array) {
return \$array['id'];
}, \$array);

echo \$min = min(\$numbers);
echo \$max = max(\$numbers);
```

numpy.amin(), Learn more about maximum, minimum, max, min, index, array, matrix, find, code produces a row vector 'M' that contains the maximum value of each column of� M = min (A, [],dim) returns the minimum element along dimension dim. For example, if A is a matrix, then min (A, [],2) is a column vector containing the minimum value of each row. example. M = min (A, [],nanflag) specifies whether to include or omit NaN values in the calculation.

```function find_lowest(\$array){
\$new_array = array();
foreach(\$array  as \$key => \$val ){
if(is_array(\$val)){
\$new_array[\$key] = find_lowest(\$val);
}else{
\$new_array[\$key] =  \$val ;
}
}
return min(\$new_array);

}
\$array = array( array(  'id' => 1,
'10xx' => 14,
'11xx' => 32,
'12xx' => 4
),

array(
'id' => 2,
'10xx' => 13,
'11xx' => 36,
'12xx' => 41
)
);
echo find_lowest(\$array);
```

How do I find the indices of the maximum (or minimum) value of my , Find minimum values in the array x . For a vector argument, return the minimum value. For a matrix argument, return a row vector with the minimum value of each � The IF function delivers this array directly to the MIN function, returns the minimum value in the array. FALSE values are automatically ignored.

Instead of looping again inside just use the min() function.

```\$lowest_keys = array();

foreach(\$array as \$item)
{
unset( \$item[ 'id' ] );
\$lowest_keys[] = min( \$item );
}
```

Function Reference: min - Octave Forge, Given a matrix, the task is to find the minimum element of each row and each column. Examples: Input: [1, 2, 3] [1, 4, 9] [76, 34, 21] Output:� In this case, it is searching the maximum value across rows and returns the column position in the listed variables. For example, it returns 6 in row 1 as 87 is the maximum value in row 1 and it is placed at 6th column of y1-y6; vname() function returns the variable name. In this case, it calculates variable name of the largest value.

1. Iterate each row/subarray with a `foreach()` loop or `array_walk()`.
2. Extract and display the `id` (first element) value with `array_shift()`.
3. Call `min()` on the remaining values in the respective subarray to determine the lowest value.

No conditional expressions. No unnecessary variables. Clean, concise, and effective.

Code: (Demo)

```\$array = [
['id' => 1, '10xx' => 14, '11xx' => 32, '12xx' => 4],
['id' => 2, '10xx' => 13, '11xx' => 36, '12xx' => 41]
];

array_walk(\$array, function(\$row) {
echo array_shift(\$row) , " : " , min(\$row) , "\n";
});
```

Output:

```1 : 4
2 : 13
```

Minimum element of each row and each column in a matrix , Find minimum value excluding zero with formula. Supposing your number values locate in range A1:E7 as below screenshot shown. Please apply the following formula to get the minimum value in that range excluding zero in Excel. 1.

To find maximum and minimum values in an array in Java you can use one of the following options- Iterate the array and look for the maximum and minimum values.

There are a lot of possible ways to find the maximum and minimum values from an array based on the area used, query constraints, updates, and so on. Let’s see two simple and common methods to get max and min of an array in Javascript in this post.

To find minimum value of every row in DataFrame just call the min () member function with DataFrame object with argument axis=1 i.e. # Get a series containing minimum value of each row minValuesObj = dfObj.min(axis=1) print('minimum value in each row : ')