Category "tuples"

How to form tuple column from two columns in Pandas

I've got a Pandas DataFrame and I want to combine the 'lat' and 'long' columns to form a tuple. <class 'pandas.core.frame.DataFrame'> Int64Index: 205482

for one member of list or tuple, why typeerror is given?

if x = [1,2] then print(x[0]) gives 1 but, when x = [1] or x = (1) then print(x[0]) gives int object is not subscriptable. I actually want to know why it gives

ConcurrentDictionary performance

I am struggling with this problem and would really appreciate any help. I'm working on an existing project. I have added logic that counts values combinations,

Why conversion from '<brace-enclosed initializer list>' to 'std::tuple<A, bool>' is ambiguous error occurs with GCC 11?

I have the following code #include <tuple> struct A{ int a; int b; }; std::tuple<A,bool> get(){ return {{}, true}; } With GCC 9.* an

Altering an immutable object?

def add_alpha(tuple_in): list_out = [] for t in tuple_in: t.append(10) a = ([1,1], [2,2], [3,3]) b = a print(id(a), id(b)) add_alpha(a)

Tuple return dynamic in c# while passing parameter as dynamic

As per the image showing CheckDynamic has two methods which has different return type but still allow to return from one to another and allowing to build. Shoul

Using RegEx to extract data from an anchor tag

I have the following anchor tag in an html document that I want to extract the link and the text from: <a href="https://www.catholicgallery.org/bible-drb/act

.Net JsonSerializer does not serialize tuple's values

JSON serializer returns an empty JSON object. using System.Text.Json; (int, int) tuple1 = (1, 2); var token = JsonSerializer.Serialize(tuple1); // return empty

Solidity - Send array of tuple data with address and amount

I'm working on a Solidity Smart Contract for Tron Network. I want the owner can set an array of address => uint. This is the code: pragma solidity ^0.8.0; s

How can you iterate through a tuple (str), then return a dictionary containing the keys (from the tuple) and the index of the keys as the values?

How can you iterate through a tuple (str), then return a dictionary containing the keys (from the tuple) and the index of the keys as the values? Input: tup = (

Why Swift Tuples can be compared only when the number of elements is less than or equal to 6?

I read in HackingWithSwift that Swift tuples can be compared with == operator only when the number of elements is less than or equal to 6. What is the reason be

Why can't an interface in a tuple be used as the model in an ASP.NET Razor partial view?

I have an ASP.NET Razor Pages project with a partial view that uses a tuple type for its model. One of the tuple elements uses an interface as its type. When th

How to take a tuple of two lists from user input?

How to take a tuple of two equal-size lists from user input at a bash terminal from within a python script? Let's assume we want the program to register the fol

Python3 merge tuples in a list and remove duplicates

There might be a similar ask to this one in the past, however wasn't able to find the one that I was looking for, Input = [('Icecream', 'Vanilla'), ('Icecream'

Create a dictionary from one key and list of tuples

I have a list of tuples. For example: L = [(334, 269, 461, 482), (182, 178, 307, 471),(336, 268, 466, 483), (183, 177, 304, 470)] The length of the list someti

Append to existing tuple in c++

i am trying to make a thing to store types in list. The best thing is to use a tuple. then to get the type i use tuple_element_t. But the problem is when append

Zipping nested lists

I am trying but am unable to zip the following two lists in a particular way: list1 = [(1,2,3),(4,5,6),(7,8,9)] list2 = [10,11,12] zippedlist = [(1,2,3,10),(4,5

Neatly linking dependency tuple references specified by variadic class args

Given the following class structure in which we possess a number of different classes C#, each with unique data that is passed into a number of ledgers L<C#&

Unable to use std::apply on user-defined types

While implementing a compressed_tuple class for some project I'm working on, I ran into the following issue: I can't seem to pass instances of this type to std:

Convert sql to tuple relational calculus

I'm trying to convert an sql query into tuple relational calculus, but there is a NOT EXIST that causes me to be stuck. SQL query: SELECT num FROM a a1, b b1