I have a DataFrame with multiple index levels. I define some subset by selecting multiple combinations of all levels but the last. Then I want to slic ...

I try to use iterator on vector slices, but it just doesn't work. My code are as follows pub fn three_sum(nums: Vec<i32>) -> Vec<Vec&l ...

I'm trying to create a one-liner that fills na values in a pandas series with the average of every 12th previous value. I feel like this should work ...

course = 'Python for Beginners' print(course[-16:-1]) What is the result? Explain the result please. I tried to figure out the result without succ ...

I have a xarray dataset from which I would like to extract points based on their coordinates. When sel is used for two coordinates it returns a 2D arr ...

I want to split a single 3D matrix into 3 smaller 3D matrices such that elements between any two planes are contained in a corresponding smaller matri ...

I'm trying to check whether some sentence is a palindrome. Word breaks and punctuation don't count. This code using cStr.split(" ") DOES NOT accompli ...

My ultimate goal is to parse the prefix number of a &str if there is one. So I want a function that given "123abc345" will give me a pair (u32, &a ...

I am trying to mask an array (called dataset) in python: The array has the following size (5032, 48, 48). Basically these are 5032 48x48 images. But s ...

I want to create a wrapper around (nested) slices for easy operations on multidimensional data, owned by a different struct. The most basic version of ...

So, I want to slice my 3d array to skip the first 2 arrays and then return the next two arrays. And I want the slice to keep following this pattern, a ...

I'm looking for a faster alternative to BitConverter: But! Inside a "hot loop": My efforts to integrate a pointer with conversion - made performan ...

I am doing an exercise to create an input that slices a string. I understand that removeinput needs to be converted to a string to be part of the sl ...

Given a polars DataFrame in Python, how can I modify every nth element in a series? # have df = pl.DataFrame(pl.Series("a", [1, -1, 1, -1, 1])) # wan ...

Stumbled upon a recursive type definition in this question: As i understand it defines a type with a name N that is a slice of an array of type N, ...

Coming from this code template which works: { fn f3( _s : &String) {} fn f( s : &String) -> impl FnMut() { let s2 = s.clone(); ...

I used to write python, just started to contact golang my json for example,children unknow numbers,may be three ,may be ten。 i write struct but ...

I wish to create a large array and replace some of the values with two other arrays. Each assignment works independently but the second statement over ...

I have a numpy 2D-array: I want to split it to multiple 2D-arrays by grid 3x3. (It's like a split big image to 9 small images by grid 3x3): At f ...

I've been given a task to search for URLs in text file useng regex and goroutines with waitgroup in the way the given way: text should be devided betw ...