## How do I make a flat list out of a list of lists?

How do I make a flat list out of a list of lists?

## How do I count the occurrence of a certain item in an ndarray?

How do I count the occurrence of a certain item in an ndarray?

## Sort array of objects by one property

Use usort, here’s an example adapted from the manual: function cmp(\$a, \$b) { return strcmp(\$a->name, \$b->name); } usort(\$your_data, “cmp”); You can also use … Read more

## Using numpy to build an array of all combinations of two arrays

I’m trying to run over the parameters space of a 6 parameter function to study its numerical behavior before trying to do anything … Read more

## How do I Sort a Multidimensional Array in PHP [duplicate]

This question already has answers here: How can I sort arrays and data in PHP? (13 answers) Closed 7 years ago. I have … Read more

## How to sort an array of objects with jquery or javascript [duplicate]

This question already has answers here: Sorting an array of objects by property values (32 answers) Closed 7 years ago. I have an … Read more

## How do you get the width and height of a multi-dimensional array?

I have an array defined: int [,] ary; // … int nArea = ary.Length; // x*y or total area This is all well … Read more

## in_array() and multidimensional array

I use in_array() to check whether a value exists in an array like below, \$a = array(“Mac”, “NT”, “Irix”, “Linux”); if (in_array(“Irix”, \$a)) … Read more

## How do you extract a column from a multi-dimensional array?

Does anybody know how to extract a column from a multi-dimensional array in Python? 20 Answers 20

## Understanding NumPy’s einsum

I’m struggling to understand exactly how einsum works. I’ve looked at the documentation and a few examples, but it’s not seeming to stick. … Read more