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Difference between numpy.array shape (R, 1) and (R,)
... of an unhelpful way to think about it.
The best way to think about NumPy arrays is that they consist of two parts, a data buffer which is just a block of raw elements, and a view which describes how to interpret the data buffer.
For example, if we create an array of 12 integers:
>>> a =...
In an array of objects, fastest way to find the index of an object whose attributes match a search
...ng to find an efficient way to do this, but have gotten nowhere. I have an array of objects that looks like this:
17 Answer...
What does a Ajax call response like 'for (;;); { json data }' mean? [duplicate]
... a site and in your malicious site's Javascript you override the object or array constructor:
function Object() {
//Make an Ajax request to your malicious site exposing the object data
}
then you include a <script> tag in that site such as
<script src="http://www.example.com/object....
What's the difference between a continuation and a callback?
...llback any number of functions, any number of times. For example:
var array = [1, 2, 3];
forEach(array, function (element, array, index) {
array[index] = 2 * element;
});
console.log(array);
function forEach(array, callback) {
var length = array.length;
for (var i = 0; ...
Cartesian product of x and y array points into single array of 2D points
I have two numpy arrays that define the x and y axes of a grid. For example:
13 Answers
...
Performance of Arrays vs. Lists
Say you need to have a list/array of integers which you need iterate frequently, and I mean extremely often. The reasons may vary, but say it's in the heart of the inner most loop of a high volume processing.
...
What is the correct way to get a subarray in Scala?
I am trying to get a subarray in scala, and I am a little confused on what the proper way of doing it is. What I would like the most would be something like how you can do it in python:
...
Converting numpy dtypes to native python types
... NumPy 1.16).
For the curious, to build a table of conversions of NumPy array scalars for your system:
for name in dir(np):
obj = getattr(np, name)
if hasattr(obj, 'dtype'):
try:
if 'time' in name:
npn = obj(0, 'D')
else:
np...
Is it possible to use argsort in descending order?
...
If you negate an array, the lowest elements become the highest elements and vice-versa. Therefore, the indices of the n highest elements are:
(-avgDists).argsort()[:n]
Another way to reason about this, as mentioned in the comments, is to ...
transform object to array with lodash
How can I transform a big object to array with lodash?
11 Answers
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