tuples Questions
2
Solved
I am looking for the most efficient way to convert a pandas DataFrame into a list of typed NamedTuple - below is a simple example with the expected output.
I would like to get the correct typ...
Dipietro asked 21/11, 2019 at 13:3
6
Solved
Let’s say I have array of objects that can be identified and I want to create dictionary from it. I can easily get tuples from my array like so:
let tuples = myArray.map { return ($0.id, $0) }
B...
Interfluent asked 13/12, 2016 at 14:24
6
Solved
I want to create this tuple:
a=(1,1,1),(2,2,2),(3,3,3),(4,4,4),(5,5,5),(6,6,6),(7,7,7),(8,8,8),(9,9,9)
I tried with this
a=1,1,1
for i in range (2,10):
a=a,(i,i,i)
However it creates a...
2
Solved
I'm finishing a port for a project that was written in Swift to support Objective-C. A lot of the project was written to support Objective-C but not the properties on a particular class.
This is ...
Sholapur asked 20/9, 2018 at 5:43
6
Solved
I frequently find myself working with Lists, Seqs, and Iterators of Tuples and would like to do something like the following,
val arrayOfTuples = List((1, "Two"), (3, "Four"))
arrayOfTuples.map { ...
Horney asked 1/8, 2011 at 22:22
6
Solved
In a C++ program with Boost, I am trying to build an unordered map whose keys are tuples of doubles:
typedef boost::tuples::tuple<double, double, double, double> Edge;
typedef boost::unorde...
Arciniega asked 31/8, 2010 at 18:16
9
Solved
I am using a 3rd party library function which reads a set of keywords from a file, and is supposed to return a tuple of values. It does this correctly as long as there are at least two keywords. Ho...
4
Solved
Here is my list of tuple:
[('Abbott', 'Texas'), ('Abernathy', 'Texas'), ('Abilene', 'Texas'), ('Ace', 'Texas'), ('Ackerly', 'Texas'), ('Alba', 'Texas'),('Addison', 'Texas'), ('Adkins', 'Texas'), (...
3
Solved
In python there is this interesting, and very useful tool by which you can pattern match values from tuples on function signature.
def first((a, b)):
return a
x = (4, 9)
first(x)
li = [(5, 4), (...
Expectation asked 25/2, 2016 at 0:24
1
Solved
I've found out how to push type to the end of the tuple:
type Cons<H, T extends readonly any[]> =
((head: H, ...tail: T) => void) extends ((...cons: infer R) => void) ? R : never;
ty...
Anthropomorphosis asked 25/10, 2019 at 14:44
1
Solved
I can add element to the begining of the tuple, or remove it from there
type ShiftTuple<T extends any[]> = ((...t: T) => void) extends ((x: infer X, ...r: infer R) => void) ? R : never...
Melon asked 24/10, 2019 at 17:49
2
Solved
std::experimental::apply has the following signature:
template <class F, class Tuple>
constexpr decltype(auto) apply(F&& f, Tuple&& t);
It basically invokes f by expanding ...
Rubricate asked 28/1, 2017 at 16:40
4
Solved
In Python (2 and 3). Whenever we use list slicing it returns a new object, e.g.:
l1 = [1,2,3,4]
print(id(l1))
l2 = l1[:]
print(id(l2))
Output
>>> 140344378384464
>>> 140344378...
1
Solved
I have boxed tuple:
(int, string) tuple = (1, "abc");
object box = tuple;
How to obtain tuple from box? What is the right syntax to cast object back to tuple?
My attempt:
var deconstruct...
7
Solved
If we take b = [1,2,3] and if we try doing: b+=(4,)
It returns b = [1,2,3,4], but if we try doing b = b + (4,) it doesn't work.
b = [1,2,3]
b+=(4,) # Prints out b = [1,2,3,4]
b = b + (4,) # Give...
Siliculose asked 6/10, 2019 at 17:29
2
Solved
Whenever I use array.map on a tuple, Typescript infers it as a generic array. For instance, here are some pieces of a simple 3x3 sudoku game:
const _ = ' ' // a "Blank"
type Blank = typeof _
typ...
Selfjustifying asked 12/9, 2019 at 19:15
9
Solved
I would like to create a tuple which present all the possible pairs from two tuples
this is example for what I would like to receive :
first_tuple = (1, 2)
second_tuple = (4, 5)
mult_tuple(first...
3
Solved
I've checked all major compilers, and sizeof(std::tuple<int, char, int, char>) is 16 for all of them. Presumably they just put elements in order into the tuple, so some space is wasted becaus...
Volga asked 3/9, 2019 at 12:34
2
I have a line in code that looks like this:
const [full, text, url] = markdownLink.exec(match) || [null, null, '']
However I am not using full and the linter is giving me a warning.
Line 28: ...
Langlois asked 27/8, 2019 at 14:6
1
Solved
I have a variable path, which should be a tuple of strings. I want to start with it set to an empty tuple, but mypy complains.
path: Tuple[str] = ()
The error is:
Incompatible types in assignment...
Rann asked 20/8, 2019 at 3:27
1
Solved
I am working on a aux module to pass values between polymorphic objects and at some point I have
std::array<void*, N>
and need to send forward
std::tuple<void*, void*, /* N times */>...
4
Solved
I have a list of lists of tuples, where every tuple is of equal length, and I need to convert the tuples to a Pandas dataframe in such a way that the columns of the dataframe are equal to the lengt...
Dannydannye asked 15/8, 2019 at 12:53
1
Solved
I need to define in OpenAPI a JSON response with an array. The array always contains 2 items and the first one is always a number and second one is always a string.
[1, "a"] //valid
["a", 1] //inv...
2
Solved
I have something which I know is a tuple. How do I generically append a single value to the tuple?
let some_tuple: (i32, &str, bool) = (1, "Hello", true);
let with_world: (i32, &str, bool...
5
Solved
Given a list of 3-tuples, for example:[(1,2,3), (4,5,6), (7,8,9)] how would you compute all possible combinations and combinations of subsets?
In this case the result should look like this:
[
(1)...
Spiniferous asked 10/8, 2019 at 18:22
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